Initial font renderer rewrite and Libra integration

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "libra"]
+	path = libra
+	url = git@github.com:493msi/libra.git

UPDATE_NOTES.md

@@ -1,3 +1,10 @@
+## 22.1.0.0-alpha.0
+* `[PlutoGUI]` **Complete rewrite of the GUI library**
+* `[Pluto*]` **Unified the cleanup methods of all OpenGL object classes to `close`**
+* `[PlutoLib]` New dependency: `joml-primitives`
+* `[PlutoDisplay]` Removed the `flipped` word from all buffer functions
+* `[PlutoRuntime]` Fixed opening .zip filesystems
+
 ## 22.0.0.0-alpha.7
 * `[PlutoRuntime]` Fixed several resource filesystem bugs
 

buildSrc/src/main/kotlin/org/plutoengine/Versions.kt

@@ -12,17 +12,18 @@ object Versions {
     }
 
     const val jomlVersion = "1.10.2"
+    const val jomlPrimitivesVersion = "1.10.0"
     const val steamworks4jVersion = "1.8.0"
     const val steamworks4jServerVersion = "1.8.0"
 
     const val versionYear = 22
-    const val versionMajor = 0
+    const val versionMajor = 1
     const val versionMinor = 0
     const val versionPatch = 0
 
     const val isPrerelease = true
     const val prereleaseName = "alpha"
-    const val prerealeaseUpdate = 7
+    const val prerealeaseUpdate = 0
 
     val versionFull =
         if (isPrerelease)

engine-core/plutoaudio/src/main/java/org/plutoengine/audio/al/AudioSource.java

@@ -3,7 +3,7 @@ package org.plutoengine.audio.al;
 import org.joml.Vector3fc;
 import org.lwjgl.openal.AL10;
 
-public abstract class AudioSource
+public abstract class AudioSource implements AutoCloseable
 {
     protected final int source;
 

engine-core/plutodisplay/src/main/java/org/plutoengine/buffer/BufferHelper.java

@@ -28,7 +28,7 @@ public final class BufferHelper
      * @author 493msi
      * @since 0.1
      */
-    public static IntBuffer flippedIntBuffer(int[] data)
+    public static IntBuffer intBuffer(int[] data)
     {
         IntBuffer buffer = BufferUtils.createIntBuffer(data.length);
         buffer.put(data);
@@ -46,7 +46,7 @@ public final class BufferHelper
      * @author 493msi
      * @since 0.1
      */
-    public static FloatBuffer flippedFloatBuffer(float[] data)
+    public static FloatBuffer floatBuffer(float[] data)
     {
         FloatBuffer buffer = BufferUtils.createFloatBuffer(data.length);
         buffer.put(data);
@@ -64,7 +64,7 @@ public final class BufferHelper
      * @author 493msi
      * @since 0.1
      */
-    public static ByteBuffer flippedByteBuffer(byte[] data)
+    public static ByteBuffer byteBuffer(byte[] data)
     {
         ByteBuffer buffer = BufferUtils.createByteBuffer(data.length);
         buffer.put(data);
@@ -136,8 +136,8 @@ public final class BufferHelper
      * @author 493msi
      * @since 0.3
      */
-    public static ByteBuffer readToFlippedByteBuffer(Path path) throws IOException
+    public static ByteBuffer readToByteBuffer(Path path) throws IOException
     {
-        return flippedByteBuffer(Files.readAllBytes(path));
+        return byteBuffer(Files.readAllBytes(path));
     }
 }

engine-core/plutogui/build.gradle.kts

@@ -7,4 +7,12 @@ description = ""
 
 dependencies {
 	api(project(":plutoengine:plutospritesheet"))
+	api(project(":libra"))
+
+	api("io.reactivex.rxjava3", "rxjava", "3.1.4")
+
+	implementation("org.lwjgl", "lwjgl-yoga")
+	runtimeOnly("org.lwjgl", "lwjgl-yoga", classifier = org.plutoengine.Versions.lwjglNatives)
+
+	implementation("org.commonmark", "commonmark", "0.18.1")
 }

engine-core/plutogui/src/main/java/org/plutoengine/graphics/PlutoGUIMod.java

@@ -1,13 +1,12 @@
 package org.plutoengine.graphics;
 
+import org.joml.Matrix3f;
 import org.plutoengine.Pluto;
-import org.plutoengine.graphics.font.FontManager;
-import org.plutoengine.graphics.font.FontShader;
+import org.plutoengine.graphics.gui.FontShader;
 import org.plutoengine.graphics.texture.MagFilter;
 import org.plutoengine.graphics.texture.MinFilter;
 import org.plutoengine.graphics.texture.WrapMode;
 import org.plutoengine.graphics.texture.texture2d.RectangleTexture;
-import org.plutoengine.gui.font.FontRenderer;
 import org.plutoengine.mod.IModEntryPoint;
 import org.plutoengine.mod.Mod;
 import org.plutoengine.mod.ModEntry;
@@ -28,18 +27,17 @@ public class PlutoGUIMod implements IModEntryPoint
 
     public static RectangleTexture uiElementsAtlas;
 
-    private static FontShader fontShader;
+    public static FontShader fontShader;
 
     public void onLoad(Mod mod)
     {
         instance = mod;
 
         fontShader = new RenderShaderBuilder(mod.getResource("shaders.VertexFontShader#glsl"), mod.getResource("shaders.FragmentFontShader#glsl")).build(FontShader.class, false);
+        fontShader.start();
+        fontShader.recolor.load(1, 1, 1, 1);
+        fontShader.transformationMatrix.load(new Matrix3f());
 
-        // Load the default font
-        FontManager.loadFont(mod.getResource("font.default"));
-
-        FontRenderer.load(fontShader);
 
         uiElementsAtlas = new RectangleTexture();
         uiElementsAtlas.load(mod.getResource("gui.elements#png"), MagFilter.NEAREST, MinFilter.NEAREST, WrapMode.CLAMP_TO_EDGE, WrapMode.CLAMP_TO_EDGE);
@@ -47,11 +45,8 @@ public class PlutoGUIMod implements IModEntryPoint
 
     public void onUnload()
     {
-        uiElementsAtlas.delete();
+        uiElementsAtlas.close();
 
-        FontManager.unloadAll();
-
-        FontRenderer.unload();
-        fontShader.dispose();
+        fontShader.close();
     }
 }

engine-core/plutogui/src/main/java/org/plutoengine/graphics/TestFontRenderer.java

@@ -0,0 +1,33 @@
+package org.plutoengine.graphics;
+
+import org.joml.Matrix3f;
+import org.plutoengine.graphics.gui.PlutoGUICommandParser;
+import org.plutoengine.graphics.gui.STBTTBasicTextShaper;
+import org.plutoengine.graphics.gui.STBTTFont;
+import org.plutoengine.libra.command.LiCommandBuffer;
+import org.plutoengine.libra.command.impl.LiCommandSetTransform;
+import org.plutoengine.libra.text.shaping.TextShaper;
+
+import java.util.EnumSet;
+
+public class TestFontRenderer
+{
+    public static void drawString(STBTTFont font, String text)
+    {
+        var shaper = new STBTTBasicTextShaper();
+        var info = shaper.shape(EnumSet.of(TextShaper.EnumFeature.KERNING), font, text);
+
+        var transformBuf = new LiCommandBuffer();
+        transformBuf.push(new LiCommandSetTransform(new Matrix3f().scale(.75f).m20(400f).m21(400f)));
+
+        var buf = info.getDrawCommandBuffer();
+        var commandParser = new PlutoGUICommandParser();
+        commandParser.add(transformBuf);
+        commandParser.add(buf);
+        var drawCalls = commandParser.parse();
+
+        drawCalls.render();
+
+        drawCalls.close();
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/font/FontManager.java

@@ -1,96 +0,0 @@
-package org.plutoengine.graphics.font;
-
-import org.plutoengine.graphics.texture.MagFilter;
-import org.plutoengine.graphics.texture.MinFilter;
-import org.plutoengine.graphics.texture.Texture;
-import org.plutoengine.graphics.texture.WrapMode;
-import org.plutoengine.graphics.texture.texture2d.RectangleTexture;
-import org.plutoengine.gui.font.CharacterInfo;
-import org.plutoengine.gui.font.Font;
-import org.plutoengine.logger.Logger;
-import org.plutoengine.logger.SmartSeverity;
-
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.HashMap;
-import java.util.Map;
-
-public class FontManager
-{
-    private static final Map<String, Font> fonts = new HashMap<>();
-
-    public static void loadFont(Path address)
-    {
-        String fontname = null;
-        int width = 0;
-        int height = 0;
-        var def = new HashMap<Character, CharacterInfo>();
-
-        int row = 0;
-
-        try
-        {
-            var lines = Files.readAllLines(address.resolve("definitions#txt"));
-
-            for (var line : lines)
-            {
-                if (line.startsWith("//"))
-                    continue;
-
-                if (row == 0)
-                {
-                    String[] fontinfo = line.split(",");
-
-                    fontname = fontinfo[0];
-
-                    String[] dim = fontinfo[1].split("x");
-
-                    width = Integer.parseInt(dim[0]);
-                    height = Integer.parseInt(dim[1]);
-                }
-                else
-                {
-                    String[] offs = line.split(" ")[1].split(";");
-
-                    def.put(line.charAt(0), new CharacterInfo(row - 1, Integer.parseInt(offs[0]), Integer.parseInt(offs[1])));
-                }
-
-                row++;
-            }
-        }
-        catch (Exception e)
-        {
-            Logger.log(SmartSeverity.ERROR, "Could not load font: " + address.toString());
-            e.printStackTrace();
-        }
-
-        Font font = new Font(fontname, width, height, def);
-        RectangleTexture texture = new RectangleTexture();
-        texture.load(address.resolve("tex#png"), MagFilter.NEAREST, MinFilter.LINEAR, WrapMode.CLAMP_TO_EDGE, WrapMode.CLAMP_TO_EDGE);
-        font.setTexture(texture);
-
-        fonts.put(fontname, font);
-    }
-
-    public static void unloadAll()
-    {
-        fonts.values()
-             .stream()
-             .map(Font::getTexture)
-             .forEach(Texture::delete);
-        fonts.clear();
-    }
-
-    public static Font getFontByName(String fontname)
-    {
-        var font = fonts.get(fontname);
-
-        if (font == null)
-        {
-            // Logger.log(SmartSeverity.WARNING, "Font with name " + fontname + " could not be found, using the default one instead (if there is one).");
-            return fonts.get("default");
-        }
-
-        return font;
-    }
-}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/FontShader.java

@@ -1,5 +1,6 @@
-package org.plutoengine.graphics.font;
+package org.plutoengine.graphics.gui;
 
+import org.joml.Matrix3fc;
 import org.plutoengine.graphics.gl.vao.attrib.ReservedAttributes;
 import org.plutoengine.shader.ShaderBase;
 import org.plutoengine.shader.ShaderProgram;
@@ -8,20 +9,14 @@ import org.plutoengine.shader.uniform.*;
 import org.plutoengine.shader.uniform.auto.AutoViewportProjection;
 
 @ShaderProgram
-public final class FontShader extends ShaderBase
+public final class FontShader extends ShaderBase implements IGUIShader
 {
     @AutoViewportProjection
     @Uniform(name = "projection")
     public UniformMat4 projectionMatrix;
 
     @Uniform(name = "transformation")
-    public UniformMat4 transformationMatrix;
-
-    @Uniform
-    public UniformVec2 uvBase;
-
-    @Uniform
-    public UniformVec2 uvDelta;
+    public UniformMat3 transformationMatrix;
 
     @Uniform
     public UniformRGBA recolor;
@@ -34,4 +29,13 @@ public final class FontShader extends ShaderBase
 
     @VertexArrayAttribute(ReservedAttributes.UV)
     public int uvCoords;
+
+    @VertexArrayAttribute(2)
+    public int page;
+
+    @Override
+    public void setTransform(Matrix3fc transform)
+    {
+        this.transformationMatrix.load(transform);
+    }
 }

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/IGUIShader.java

@@ -0,0 +1,8 @@
+package org.plutoengine.graphics.gui;
+
+import org.joml.Matrix3fc;
+
+public interface IGUIShader
+{
+    void setTransform(Matrix3fc transform);
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/PlutoGUI.java

@@ -0,0 +1,14 @@
+package org.plutoengine.graphics.gui;
+
+import org.plutoengine.component.PlutoLocalComponent;
+
+public class PlutoGUI extends PlutoLocalComponent
+{
+    @Override
+    public boolean isUnique()
+    {
+        return true;
+    }
+
+
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/PlutoGUICommandParser.java

@@ -0,0 +1,119 @@
+package org.plutoengine.graphics.gui;
+
+import org.plutoengine.graphics.gl.DrawMode;
+import org.plutoengine.graphics.gl.vao.VertexArray;
+import org.plutoengine.graphics.gl.vao.VertexArrayBuilder;
+import org.plutoengine.graphics.gui.command.PlutoCommandDrawMesh;
+import org.plutoengine.graphics.gui.command.PlutoCommandSwitchShader;
+import org.plutoengine.graphics.gui.command.PlutoCommandSwitchTexture;
+import org.plutoengine.libra.command.AbstractGUICommandParser;
+import org.plutoengine.libra.command.IGUIRenderer;
+import org.plutoengine.libra.command.LiCommandBuffer;
+import org.plutoengine.libra.command.impl.LiCommandSetTransform;
+import org.plutoengine.shader.ShaderBase;
+
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.HashSet;
+
+public class PlutoGUICommandParser extends AbstractGUICommandParser
+{
+    @Override
+    protected IGUIRenderer parse(LiCommandBuffer mergedBuffer)
+    {
+        var drawCalls = new ArrayList<Runnable>();
+        var closeCalls = new ArrayDeque<Runnable>();
+        var alreadyEnabledAttribs = new HashSet<Integer>();
+        var currentShader = (ShaderBase & IGUIShader) null;
+
+        for (var cmd : mergedBuffer)
+        {
+            var type = cmd.getType();
+
+            switch (type)
+            {
+                case DRAW_MESH -> {
+                    if (!(cmd instanceof PlutoCommandDrawMesh drawCmd))
+                        throw new IllegalStateException();
+
+                    var vab = new VertexArrayBuilder();
+
+                    var data = drawCmd.getData();
+                    var attrInfo = drawCmd.getAttributeInfo();
+                    data.forEach((attr, val) -> vab.attrib(attr, attrInfo.get(attr).dimensions(), val.flip()));
+
+                    var indices = drawCmd.getIndices();
+                    if (indices != null)
+                        vab.indices(indices.flip());
+
+                    var vao = vab.build();
+                    var attribs = vao.getUsedAttributes();
+                    var attribsToEnable = new HashSet<>(attribs);
+                    attribsToEnable.removeAll(alreadyEnabledAttribs);
+                    alreadyEnabledAttribs.addAll(attribsToEnable);
+
+                    drawCalls.add(() -> {
+                        vao.bind();
+                        attribsToEnable.forEach(VertexArray::enableAttribute);
+                        vao.draw(DrawMode.TRIANGLES);
+                    });
+
+                    closeCalls.add(vao::close);
+                }
+
+                case SET_TRANSFORM -> {
+                    if (!(cmd instanceof LiCommandSetTransform transformCmd))
+                        throw new IllegalStateException();
+
+                    var shaderCapture = currentShader;
+
+                    assert shaderCapture != null;
+
+                    drawCalls.add(() -> shaderCapture.setTransform(transformCmd.getTransform()));
+                }
+
+                case SWITCH_SHADER -> {
+                    if (!(cmd instanceof PlutoCommandSwitchShader swSh))
+                        throw new IllegalStateException();
+
+                    var shaderCapture = currentShader = (ShaderBase & IGUIShader) swSh.getShader();
+
+                    assert shaderCapture != null;
+
+                    drawCalls.add(() -> shaderCapture.start());
+                }
+
+                case SWITCH_TEXTURE -> {
+                    if (!(cmd instanceof PlutoCommandSwitchTexture swTx))
+                        throw new IllegalStateException();
+
+                    var textureCapture = swTx.getTexture();
+
+                    assert textureCapture != null;
+
+                    drawCalls.add(textureCapture::bind);
+                }
+            }
+        }
+
+        return new IGUIRenderer()
+        {
+            @Override
+            public void render()
+            {
+                drawCalls.forEach(Runnable::run);
+            }
+
+            @Override
+            public void close()
+            {
+                var it = closeCalls.descendingIterator();
+                while (it.hasNext())
+                {
+                    var call = it.next();
+                    call.run();
+                }
+            }
+        };
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/PlutoTextInfo.java

@@ -0,0 +1,12 @@
+package org.plutoengine.graphics.gui;
+
+import org.plutoengine.libra.command.LiCommandBuffer;
+import org.plutoengine.libra.text.LiTextInfo;
+
+public class PlutoTextInfo extends LiTextInfo
+{
+    protected PlutoTextInfo(LiCommandBuffer commandBuffer)
+    {
+        super(commandBuffer);
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/SDFTextureArray.java

@@ -0,0 +1,73 @@
+package org.plutoengine.graphics.gui;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL33;
+import org.plutoengine.graphics.texture.MagFilter;
+import org.plutoengine.graphics.texture.MinFilter;
+import org.plutoengine.graphics.texture.Texture;
+import org.plutoengine.graphics.texture.WrapMode;
+import org.plutoengine.tpl.ImageLoader;
+import org.plutoengine.tpl.ImageY;
+
+import java.awt.image.BufferedImage;
+import java.nio.ByteBuffer;
+import java.util.List;
+
+public class SDFTextureArray extends Texture
+{
+    public SDFTextureArray()
+    {
+        super(GL33.GL_TEXTURE_2D_ARRAY, 2);
+    }
+
+    @Override
+    public boolean supportsMipMapping()
+    {
+        return false;
+    }
+
+    @Override
+    public void writeData(long address)
+    {
+        GL33.glTexImage3D(GL33.GL_TEXTURE_2D_ARRAY, 0, GL33.GL_R8, this.width, this.height, this.depth, 0, GL33.GL_RED, GL11.GL_UNSIGNED_BYTE, address);
+    }
+
+    public void loadImg(List<BufferedImage> imageData, int width, int height, int depth, MagFilter magFilter, MinFilter minFilter, WrapMode... wrap)
+    {
+        var data = imageData.stream()
+                            .map(ImageLoader::loadImageGrayscale)
+                            .map(ImageY::getData)
+                            .toList();
+
+        this.load(data, width, height, depth, magFilter, minFilter, wrap);
+    }
+
+    public void load(List<ByteBuffer> imageData, int width, int height, int depth, MagFilter magFilter, MinFilter minFilter, WrapMode... wrap)
+    {
+        this.width = width;
+        this.height = height;
+        this.depth = imageData.size();
+
+        this.bind();
+
+        this.setFilteringOptions(magFilter, minFilter);
+        this.setWrapOptions(wrap);
+
+        this.writeData(0);
+
+        for (int i = 0; i < imageData.size(); i++)
+        {
+            var img = imageData.get(i);
+            GL33.glTexSubImage3D(GL33.GL_TEXTURE_2D_ARRAY, 0,
+                0, 0, i,
+                this.width, this.height, 1,
+                GL33.GL_RED, GL11.GL_UNSIGNED_BYTE, img);
+        }
+    }
+
+    @Override
+    public void load(ByteBuffer imageData, int width, int height, MagFilter magFilter, MinFilter minFilter, WrapMode... wrap)
+    {
+        throw new UnsupportedOperationException();
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/STBTTBasicTextShaper.java

@@ -0,0 +1,141 @@
+package org.plutoengine.graphics.gui;
+
+import org.lwjgl.system.MemoryUtil;
+import org.plutoengine.graphics.PlutoGUIMod;
+import org.plutoengine.graphics.gui.command.PlutoCommandDrawMesh;
+import org.plutoengine.graphics.gui.command.PlutoCommandSwitchShader;
+import org.plutoengine.graphics.gui.command.PlutoCommandSwitchTexture;
+import org.plutoengine.libra.command.LiCommandBuffer;
+import org.plutoengine.libra.text.LiTextInfo;
+import org.plutoengine.libra.text.font.GlyphInfo;
+import org.plutoengine.libra.text.shaping.IShapingStrategy;
+import org.plutoengine.libra.text.shaping.TextShaper;
+
+import java.util.Arrays;
+import java.util.EnumSet;
+
+public class STBTTBasicTextShaper implements IShapingStrategy<STBTTFont.STBTTGlyphMetrics, STBTTFont.STBTTGlyphAtlas, STBTTFont>
+{
+
+    @Override
+    public LiTextInfo shape(EnumSet<TextShaper.EnumFeature> features, STBTTFont font, String text)
+    {
+        var commandBuf = new LiCommandBuffer();
+
+        var atlas = font.getGlyphAtlas();
+        var atlasTexture = atlas.getGlyphAtlasTexture();
+        var texSwitch = new PlutoCommandSwitchTexture(atlasTexture);
+        commandBuf.push(texSwitch);
+
+        var shader = PlutoGUIMod.fontShader;
+        var shaderSwitch = new PlutoCommandSwitchShader(shader);
+        commandBuf.push(shaderSwitch);
+
+        var cpCount = (int) text.codePoints().count();
+
+        var mesh = new PlutoCommandDrawMesh();
+
+        final var quadVerts = 4;
+        final var twoTriVerts = 6;
+
+        var vertDim = 2;
+        var vertexBuf = MemoryUtil.memAllocFloat(vertDim * quadVerts * cpCount);
+
+        var uvDim = 2;
+        var uvBuf = MemoryUtil.memAllocFloat(uvDim * quadVerts * cpCount);
+
+        var pageDim = 1;
+        var pageBuf = MemoryUtil.memAllocInt(pageDim * quadVerts * cpCount);
+
+        var indexBuf = MemoryUtil.memAllocInt(twoTriVerts * cpCount);
+
+        var cpIt = text.codePoints().iterator();
+
+        var indices = new int[] {
+            0, 1, 2,
+            0, 2, 3
+        };
+
+        float[] vertices = new float[vertDim * quadVerts];
+        float[] uvs = new float[uvDim * quadVerts];
+        int[] pages = new int[pageDim * quadVerts];
+
+        float scale = 1 / (float) STBTTFont.PIXEL_HEIGHT;
+
+        float x = 0;
+        float y = 0;
+
+        GlyphInfo<STBTTFont.STBTTGlyphAtlas, STBTTFont.STBTTGlyphMetrics> info;
+        STBTTFont.STBTTGlyphMetrics metrics = null;
+        int cp;
+
+        while (cpIt.hasNext())
+        {
+            cp = cpIt.next();
+
+            switch (cp)
+            {
+                case '\n' -> {
+                    x = 0;
+                    y += font.getLineAdvance() * scale;
+                    continue;
+                }
+            }
+
+            if (metrics != null)
+                x += metrics.getKerning(cp);
+
+            metrics = font.getGlyphMetrics(cp);
+            info = atlas.getGlyph(cp);
+
+            if (metrics == null)
+                continue;
+
+            x += metrics.getLeftSideBearing() * scale;
+
+            if (info != null)
+            {
+                float gx = x;
+                float gy = y + font.getAscent() * scale - metrics.getCY0() * scale;
+
+                vertices[6] = vertices[0] = gx - STBTTFont.SDF_PADDING;
+                vertices[3] = vertices[1] = gy + STBTTFont.SDF_PADDING;
+                vertices[4] = vertices[2] = gx + metrics.getCX1() * scale - metrics.getCX0() * scale + STBTTFont.SDF_PADDING;
+                vertices[7] = vertices[5] = gy - metrics.getCY1() * scale + metrics.getCY0() * scale - STBTTFont.SDF_PADDING;
+
+                var uvRect = info.getRect();
+                uvs[6] = uvs[0] = uvRect.minX;
+                uvs[3] = uvs[1] = 1 - uvRect.maxY;
+                uvs[4] = uvs[2] = uvRect.maxX;
+                uvs[7] = uvs[5] = 1 - uvRect.minY;
+
+                Arrays.fill(pages, info.getPage());
+
+                vertexBuf.put(vertices);
+                uvBuf.put(uvs);
+                pageBuf.put(pages);
+
+                indexBuf.put(indices);
+
+                indices[0] += quadVerts;
+                indices[1] += quadVerts;
+                indices[2] += quadVerts;
+                indices[3] += quadVerts;
+                indices[4] += quadVerts;
+                indices[5] += quadVerts;
+            }
+
+            x += metrics.getAdvanceX() * scale;
+        }
+
+        mesh.addAttribute(shader.position, vertexBuf.flip(), vertDim);
+        mesh.addAttribute(shader.uvCoords, uvBuf.flip(), uvDim);
+        mesh.addAttribute(shader.page, pageBuf.flip(), pageDim);
+
+        mesh.addIndices(indexBuf.flip());
+
+        commandBuf.push(mesh);
+
+        return new PlutoTextInfo(commandBuf);
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/STBTTFont.java

@@ -0,0 +1,358 @@
+package org.plutoengine.graphics.gui;
+
+import org.joml.primitives.Rectanglef;
+import org.lwjgl.stb.*;
+import org.lwjgl.system.MemoryStack;
+import org.plutoengine.buffer.BufferHelper;
+import org.plutoengine.graphics.texture.MagFilter;
+import org.plutoengine.graphics.texture.MinFilter;
+import org.plutoengine.graphics.texture.WrapMode;
+import org.plutoengine.libra.text.font.GlyphInfo;
+import org.plutoengine.libra.text.font.GlyphMetrics;
+import org.plutoengine.libra.text.font.LiFont;
+import org.plutoengine.logger.Logger;
+import org.plutoengine.logger.SmartSeverity;
+
+import java.awt.*;
+import java.awt.color.ColorSpace;
+import java.awt.image.BufferedImage;
+import java.awt.image.ComponentColorModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.WritableRaster;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.IntStream;
+
+public class STBTTFont extends LiFont<STBTTFont.STBTTGlyphAtlas, STBTTFont.STBTTGlyphMetrics> implements AutoCloseable
+{
+    public static final int PIXEL_HEIGHT = 64;
+    public static final int SDF_PADDING = 4;
+    public static final int SHEET_SIZE = 1024;
+
+    private int descent;
+    private int ascent;
+    private int lineGap;
+    private int lineAdvance;
+
+    private Map<KerningPair, Integer> kerningTable;
+
+    private record KerningPair(int left, int right)
+    {
+
+    }
+
+    private STBTTFont(String name)
+    {
+        super(name);
+    }
+
+    public int getAscent()
+    {
+        return this.ascent;
+    }
+
+    public int getDescent()
+    {
+        return this.descent;
+    }
+
+    public int getLineGap()
+    {
+        return this.lineGap;
+    }
+
+    public int getLineAdvance()
+    {
+        return this.lineAdvance;
+    }
+
+    public int getKerningOffset(int left, int right)
+    {
+        return this.kerningTable.getOrDefault(new KerningPair(left, right), 0);
+    }
+
+    @Override
+    public void close()
+    {
+        var tex = this.getGlyphAtlas().getGlyphAtlasTexture();
+        tex.close();
+    }
+
+    public class STBTTGlyphAtlas extends LiFont<STBTTGlyphAtlas, STBTTGlyphMetrics>.GlyphAtlas
+    {
+        private SDFTextureArray glyphAtlasTexture;
+
+        public void setGlyphAtlasTexture(SDFTextureArray glyphAtlasTexture)
+        {
+            this.glyphAtlasTexture = glyphAtlasTexture;
+        }
+
+        public SDFTextureArray getGlyphAtlasTexture()
+        {
+            return this.glyphAtlasTexture;
+        }
+    }
+
+    public class STBTTGlyphMetrics extends GlyphMetrics
+    {
+        private final int codepoint;
+        private int advanceX;
+        private int leftSideBearing;
+
+        private int cx0;
+        private int cy0;
+        private int cx1;
+        private int cy1;
+
+        private int xOrigin;
+        private int yOrigin;
+
+        private STBTTGlyphMetrics(int codepoint)
+        {
+            this.codepoint = codepoint;
+        }
+
+        public int getAdvanceX()
+        {
+            return this.advanceX;
+        }
+
+        public int getLeftSideBearing()
+        {
+            return this.leftSideBearing;
+        }
+
+        public int getCodepoint()
+        {
+            return this.codepoint;
+        }
+
+        public int getKerning(int cp)
+        {
+            return STBTTFont.this.getKerningOffset(this.codepoint, cp);
+        }
+
+        public int getCX0()
+        {
+            return this.cx0;
+        }
+
+        public int getCY0()
+        {
+            return this.cy0;
+        }
+
+        public int getCX1()
+        {
+            return this.cx1;
+        }
+
+        public int getCY1()
+        {
+            return this.cy1;
+        }
+
+        public int getXOrigin()
+        {
+            return this.xOrigin;
+        }
+
+        public int getYOrigin()
+        {
+            return this.yOrigin;
+        }
+    }
+
+    public static STBTTFont load(Path path)
+    {
+        try (var stack = MemoryStack.stackPush())
+        {
+            var fontInfo = STBTTFontinfo.calloc(stack);
+
+            var data = BufferHelper.readToByteBuffer(path);
+
+            if (!STBTruetype.stbtt_InitFont(fontInfo, data))
+            {
+                Logger.logf(SmartSeverity.ERROR, "Failed to load font: %s%n", path);
+
+                return null;
+            }
+
+            float scale = STBTruetype.stbtt_ScaleForPixelHeight(fontInfo, PIXEL_HEIGHT);
+
+            var nameBuf = STBTruetype.stbtt_GetFontNameString(fontInfo,
+                STBTruetype.STBTT_PLATFORM_ID_MICROSOFT,
+                STBTruetype.STBTT_MS_EID_UNICODE_BMP,
+                STBTruetype.STBTT_MS_LANG_ENGLISH,
+                1);
+
+            if (nameBuf == null)
+            {
+                Logger.logf(SmartSeverity.ERROR, "Failed to load font: %s%n", path);
+
+                return null;
+            }
+
+            var name = StandardCharsets.UTF_16BE.decode(nameBuf).toString();
+
+            Logger.logf(SmartSeverity.ADDED, "Loading font: %s%n", name);
+
+            var font = new STBTTFont(name);
+
+            var ascentBuf = stack.callocInt(1);
+            var descentBuf = stack.callocInt(1);
+            var lineGapBuf = stack.callocInt(1);
+            STBTruetype.stbtt_GetFontVMetrics(fontInfo, ascentBuf, descentBuf, lineGapBuf);
+
+            var codepoints = IntStream.rangeClosed(0x0000, 0x04ff);
+
+            var onedgeValue = 220;
+            var pixelDistScale = onedgeValue / (float) SDF_PADDING;
+
+            var sdfWidthBuf = stack.mallocInt(1);
+            var sdfHeightBuf = stack.mallocInt(1);
+            var xOffsBuf = stack.mallocInt(1);
+            var yOffsBuf = stack.mallocInt(1);
+
+            var rectPacker = STBRPContext.malloc(stack);
+            var nodes = STBRPNode.calloc(SHEET_SIZE * 4);
+
+            STBRectPack.stbrp_init_target(rectPacker, SHEET_SIZE, SHEET_SIZE, nodes);
+            STBRectPack.stbrp_setup_allow_out_of_mem(rectPacker, true);
+            var rect = STBRPRect.malloc(1, stack);
+
+            var sheets = new ArrayList<BufferedImage>();
+
+            var atlas = new BufferedImage(SHEET_SIZE, SHEET_SIZE, BufferedImage.TYPE_BYTE_GRAY);
+            var graphics = atlas.getGraphics();
+            var colorSpace = ColorSpace.getInstance(ColorSpace.CS_GRAY);
+            var colorModel = new ComponentColorModel(colorSpace, new int[] { 8 }, false,false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
+
+            font.atlas = font.new STBTTGlyphAtlas();
+
+            var advanceWidth = stack.mallocInt(1);
+            var leftSideBearing = stack.mallocInt(1);
+
+            var cx0 = stack.mallocInt(1);
+            var cy0 = stack.mallocInt(1);
+            var cx1 = stack.mallocInt(1);
+            var cy1 = stack.mallocInt(1);
+
+            for (var cp : codepoints.toArray())
+            {
+                var buf = STBTruetype.stbtt_GetCodepointSDF(fontInfo,
+                    scale,
+                    cp,
+                    SDF_PADDING,
+                    (byte) onedgeValue,
+                    pixelDistScale,
+                    sdfWidthBuf,
+                    sdfHeightBuf,
+                    xOffsBuf,
+                    yOffsBuf);
+
+                var width = sdfWidthBuf.get(0);
+                var height = sdfHeightBuf.get(0);
+
+                var glyphInfo = (GlyphInfo<STBTTGlyphAtlas, STBTTGlyphMetrics>) null;
+
+                if (buf != null)
+                {
+
+                    rect.w(width);
+                    rect.h(height);
+
+                    if (STBRectPack.stbrp_pack_rects(rectPacker, rect) == 0)
+                    {
+                        sheets.add(atlas);
+
+                        atlas = new BufferedImage(SHEET_SIZE, SHEET_SIZE, BufferedImage.TYPE_BYTE_GRAY);
+                        graphics = atlas.getGraphics();
+
+                        STBRectPack.stbrp_init_target(rectPacker, SHEET_SIZE, SHEET_SIZE, nodes);
+                        STBRectPack.stbrp_setup_allow_out_of_mem(rectPacker, true);
+
+                        STBRectPack.stbrp_pack_rects(rectPacker, rect);
+                    }
+
+                    var dataBuf = new DataBuffer(DataBuffer.TYPE_BYTE, width * height) {
+                        @Override
+                        public int getElem(int bank, int i)
+                        {
+                            return buf.get(i);
+                        }
+
+                        @Override
+                        public void setElem(int bank, int i, int val)
+                        {
+                            buf.put(i, (byte) val);
+                        }
+                    };
+
+                    var sampleModel = colorModel.createCompatibleSampleModel(width, height);
+                    var raster = new WritableRaster(sampleModel, dataBuf, new Point()) {};
+                    var image = new BufferedImage(colorModel, raster, false, null);
+                    graphics.drawImage(image, rect.x(), rect.y(), null);
+
+                    var glyphRect = new Rectanglef(
+                        rect.x() / (float) SHEET_SIZE,
+                        rect.y() / (float) SHEET_SIZE,
+                        (rect.x() + rect.w()) / (float) SHEET_SIZE,
+                        (rect.y() + rect.h()) / (float) SHEET_SIZE);
+
+                    glyphInfo = new GlyphInfo<>(font.atlas, sheets.size(), glyphRect);
+
+                    STBTruetype.stbtt_FreeSDF(buf);
+                }
+
+                STBTruetype.stbtt_GetCodepointHMetrics(fontInfo, cp, advanceWidth, leftSideBearing);
+
+                var glyphMetrics = font.new STBTTGlyphMetrics(cp);
+                glyphMetrics.advanceX = advanceWidth.get(0);
+                glyphMetrics.leftSideBearing = leftSideBearing.get(0);
+
+                glyphMetrics.xOrigin = xOffsBuf.get(0);
+                glyphMetrics.yOrigin = yOffsBuf.get(0);
+
+                STBTruetype.stbtt_GetCodepointBox(fontInfo, cp, cx0, cy0, cx1, cy1);
+                glyphMetrics.cx0 = cx0.get(0);
+                glyphMetrics.cy0 = cy0.get(0);
+                glyphMetrics.cx1 = cx1.get(0);
+                glyphMetrics.cy1 = cy1.get(0);
+
+                font.addGlyph(cp, glyphMetrics, glyphInfo);
+            }
+
+            if (!sheets.contains(atlas))
+                sheets.add(atlas);
+
+            nodes.free();
+
+            var kerningTableLength = STBTruetype.stbtt_GetKerningTableLength(fontInfo);
+            var kerningTable = STBTTKerningentry.malloc(kerningTableLength, stack);
+            STBTruetype.stbtt_GetKerningTable(fontInfo, kerningTable);
+            font.kerningTable = new HashMap<>();
+            kerningTable.forEach(e -> font.kerningTable.put(new KerningPair(e.glyph1(), e.glyph2()), e.advance()));
+
+            font.ascent = ascentBuf.get();
+            font.descent = descentBuf.get();
+            font.lineGap = lineGapBuf.get();
+            font.lineAdvance = font.ascent - font.descent + font.lineGap;
+            var tex = new SDFTextureArray();
+            tex.loadImg(sheets, SHEET_SIZE, SHEET_SIZE, sheets.size(), MagFilter.LINEAR, MinFilter.LINEAR, WrapMode.MIRROR_CLAMP_TO_EDGE, WrapMode.MIRROR_CLAMP_TO_EDGE);
+            font.atlas.setGlyphAtlasTexture(tex);
+
+            return font;
+        }
+        catch (Exception e)
+        {
+            Logger.logf(SmartSeverity.ERROR, "Failed to load font: %s%n", path);
+            Logger.log(e);
+
+            return null;
+        }
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/command/PlutoCommandDrawMesh.java

@@ -0,0 +1,161 @@
+package org.plutoengine.graphics.gui.command;
+
+import org.plutoengine.graphics.gl.vao.attrib.AttributeInfo;
+import org.plutoengine.graphics.gl.vbo.EnumArrayBufferType;
+import org.plutoengine.libra.command.impl.LiCommand;
+import org.plutoengine.libra.command.impl.LiCommandDrawMesh;
+
+import java.nio.Buffer;
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
+import java.util.*;
+
+public class PlutoCommandDrawMesh extends LiCommandDrawMesh
+{
+    private final Map<Integer, AttributeInfo> attributeInfo;
+    private final Map<Integer, Buffer> data;
+    private IntBuffer indices;
+
+    public PlutoCommandDrawMesh()
+    {
+        this.attributeInfo = new TreeMap<>();
+        this.data = new TreeMap<>();
+    }
+
+    public IntBuffer getIndices()
+    {
+        if (this.indices == null)
+            return null;
+
+        return this.indices;
+    }
+
+    public Map<Integer, AttributeInfo> getAttributeInfo()
+    {
+        return Collections.unmodifiableMap(this.attributeInfo);
+    }
+
+    public Map<Integer, Buffer> getData()
+    {
+        return Collections.unmodifiableMap(this.data);
+    }
+
+    public void addIndices(int[] data)
+    {
+        if (data == null)
+            return;
+
+        this.addIndices(IntBuffer.wrap(data));
+    }
+
+    public void addIndices(IntBuffer data)
+    {
+        if (data == null)
+            return;
+
+        if (this.indices == null)
+            this.indices = IntBuffer.allocate(data.remaining());
+
+        if (this.indices.remaining() < data.remaining())
+            this.indices = IntBuffer.allocate(Math.max(this.indices.capacity() << 1, this.indices.capacity() + data.remaining())).put(this.indices.flip());
+
+        this.indices.put(data);
+    }
+
+    public void addAttribute(int attrib, float[] data, int dimensions)
+    {
+        if (data == null)
+            return;
+
+        this.addAttribute(attrib, FloatBuffer.wrap(data), dimensions);
+    }
+
+    public void addAttribute(int attrib, FloatBuffer data, int dimensions)
+    {
+        if (data == null)
+            return;
+
+        var meta = this.attributeInfo.computeIfAbsent(attrib, k -> new AttributeInfo(EnumArrayBufferType.FLOAT, attrib, dimensions));
+
+        if (meta.dimensions() != dimensions)
+            throw new IllegalArgumentException("Attribute dimensions mismatch!");
+
+        this.data.compute(attrib, (k, v) -> {
+            if (v == null)
+                return FloatBuffer.allocate(data.remaining()).put(data);
+
+            if (!(v instanceof FloatBuffer fab))
+                throw new IllegalArgumentException();
+
+            if (data.remaining() <= fab.remaining())
+                return fab.put(data);
+
+            var newBuf = FloatBuffer.allocate(Math.max(v.capacity() << 1, v.capacity() + data.remaining()));
+            return newBuf.put(fab.flip()).put(data);
+        });
+    }
+
+    public void addAttribute(int attrib, int[] data, int dimensions)
+    {
+        if (data == null)
+            return;
+
+        this.addAttribute(attrib, IntBuffer.wrap(data), dimensions);
+    }
+
+    public void addAttribute(int attrib, IntBuffer data, int dimensions)
+    {
+        if (data == null)
+            return;
+
+        var meta = this.attributeInfo.computeIfAbsent(attrib, k -> new AttributeInfo(EnumArrayBufferType.INT, attrib, dimensions));
+
+        if (meta.dimensions() != dimensions)
+            throw new IllegalArgumentException("Attribute dimensions mismatch!");
+
+        this.data.compute(attrib, (k, v) -> {
+            if (v == null)
+                return IntBuffer.allocate(data.remaining()).put(data);
+
+            if (!(v instanceof IntBuffer fab))
+                throw new IllegalArgumentException();
+
+            if (data.remaining() <= fab.remaining())
+                return fab.put(data);
+
+            var newBuf = IntBuffer.allocate(Math.max(v.capacity() << 1, v.capacity() + data.remaining()));
+            return newBuf.put(fab.flip()).put(data);
+        });
+    }
+
+    @Override
+    public boolean supportsMerge(LiCommand other)
+    {
+        if (!(other instanceof PlutoCommandDrawMesh pcdm))
+            return false;
+
+        return this.attributeInfo.equals(pcdm.attributeInfo);
+    }
+
+    @Override
+    public PlutoCommandDrawMesh merge(LiCommand other)
+    {
+        if (!(other instanceof PlutoCommandDrawMesh pcdm))
+            throw new UnsupportedOperationException();
+
+        pcdm.data.forEach((k, v) -> {
+            var attrInfo = this.attributeInfo.get(k);
+
+            switch (attrInfo.type())
+            {
+                case FLOAT -> this.addAttribute(k, (FloatBuffer) v, attrInfo.dimensions());
+                case INT -> this.addAttribute(k, (IntBuffer) v, attrInfo.dimensions());
+                case UNSIGNED_INT -> throw new UnsupportedOperationException();
+            }
+        });
+
+        this.addIndices(pcdm.indices);
+
+        return this;
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/command/PlutoCommandSwitchShader.java

@@ -0,0 +1,12 @@
+package org.plutoengine.graphics.gui.command;
+
+import org.plutoengine.graphics.gui.IGUIShader;
+import org.plutoengine.libra.command.impl.LiCommandSwitchShader;
+
+public class PlutoCommandSwitchShader extends LiCommandSwitchShader<IGUIShader>
+{
+    public PlutoCommandSwitchShader(IGUIShader shader)
+    {
+        super(shader);
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/graphics/gui/command/PlutoCommandSwitchTexture.java

@@ -0,0 +1,12 @@
+package org.plutoengine.graphics.gui.command;
+
+import org.plutoengine.graphics.texture.Texture;
+import org.plutoengine.libra.command.impl.LiCommandSwitchTexture;
+
+public class PlutoCommandSwitchTexture extends LiCommandSwitchTexture<Texture>
+{
+    public PlutoCommandSwitchTexture(Texture texture)
+    {
+        super(texture);
+    }
+}

engine-core/plutogui/src/main/java/org/plutoengine/gui/font/CharacterInfo.java

@@ -1,6 +0,0 @@
-package org.plutoengine.gui.font;
-
-public record CharacterInfo(int number, int leftOffset, int rightOffset)
-{
-
-}

engine-core/plutogui/src/main/java/org/plutoengine/gui/font/Font.java

@@ -1,59 +0,0 @@
-package org.plutoengine.gui.font;
-
-import org.plutoengine.graphics.texture.texture2d.RectangleTexture;
-
-import java.util.HashMap;
-
-public class Font
-{
-    private String name;
-    private int width;
-    private int height;
-    private final HashMap<Character, CharacterInfo> definitions;
-    private RectangleTexture texture;
-
-    public Font(String name, int width, int height, HashMap<Character, CharacterInfo> def)
-    {
-        this.name = name;
-        this.width = width;
-        this.height = height;
-        this.definitions = def;
-    }
-
-    public String getName()
-    {
-        return this.name;
-    }
-
-    public void setName(String name)
-    {
-        this.name = name;
-    }
-
-    public int getTextureWidth()
-    {
-        return this.width;
-    }
-
-    public int getTextureHeight()
-    {
-        return this.height;
-    }
-
-    public RectangleTexture getTexture()
-    {
-        return this.texture;
-    }
-
-    public void setTexture(RectangleTexture texture)
-    {
-        this.texture = texture;
-        this.width = texture.getWidth();
-        this.height = texture.getHeight();
-    }
-
-    public HashMap<Character, CharacterInfo> getDefinitions()
-    {
-        return this.definitions;
-    }
-}

engine-core/plutogui/src/main/java/org/plutoengine/gui/font/FontHelper.java

@@ -1,120 +0,0 @@
-package org.plutoengine.gui.font;
-
-import org.plutoengine.graphics.font.FontManager;
-
-public class FontHelper
-{
-    public static int calcStringWidth(Object string, String fontname, float relativeSize)
-    {
-        Font font = FontManager.getFontByName(fontname);
-
-        if (font == null)
-        {
-            System.out.println("Font doesn't exist: " + fontname);
-            return -1;
-        }
-
-        float absoluteCharWidth = 16;
-        String text = string.toString();
-
-        int maxW = 0;
-        int totalSpacing = 0;
-
-        for (int i = 0; i < text.length(); i++)
-        {
-            if (text.length() > i + 1)
-            {
-                if (text.charAt(i) == '\\' && text.charAt(i + 1) == '&')
-                {
-                    continue;
-                }
-            }
-
-            // &c[0xff770077]
-            if (text.length() > i + 13)
-            {
-                if (text.charAt(i) == '&' && text.charAt(i + 1) == 'c' && text.charAt(i + 2) == '[' && text.charAt(i + 13) == ']')
-                {
-                    char c = '0';
-                    char cBef = '0';
-
-                    if (i > 0)
-                    {
-                        c = text.charAt(i - 1);
-                    }
-
-                    if (i > 1)
-                    {
-                        cBef = text.charAt(i - 2);
-                    }
-
-                    if (c != '\\' || cBef == '\\' && c == '\\')
-                    {
-                        i += 13;
-
-                        continue;
-                    }
-                }
-            }
-
-            if (text.length() > i + 2)
-            {
-                if (text.charAt(i) == '&' && text.charAt(i + 1) == 'i')
-                {
-                    char c = '0';
-                    char cBef = '0';
-
-                    if (i > 0)
-                    {
-                        c = text.charAt(i - 1);
-                    }
-
-                    if (i > 1)
-                    {
-                        cBef = text.charAt(i - 2);
-                    }
-
-                    if (c != '\\' || cBef == '\\' && c == '\\')
-                    {
-                        i += 2;
-
-                        continue;
-                    }
-                }
-            }
-
-            if (text.charAt(i) == '\n')
-            {
-                totalSpacing = 0;
-            }
-            else if (text.charAt(i) == ' ')
-            {
-                totalSpacing += 12 * relativeSize;
-            }
-            else
-            {
-                CharacterInfo charInf = font.getDefinitions().get(text.charAt(i));
-
-                if (charInf == null)
-                {
-                    charInf = font.getDefinitions().get('?');
-                }
-
-                totalSpacing -= charInf.leftOffset() * relativeSize - relativeSize;
-                totalSpacing += absoluteCharWidth * relativeSize;
-                totalSpacing -= charInf.rightOffset() * relativeSize - 1;
-            }
-
-            maxW = Math.max(maxW, totalSpacing);
-        }
-
-        return maxW;
-    }
-
-    public static int calcStringHeight(Object string, float relSize)
-    {
-
-        return (int) (30f * relSize * string.toString().split("\n").length);
-    }
-
-}

engine-core/plutogui/src/main/java/org/plutoengine/gui/font/FontRenderer.java

@@ -1,287 +0,0 @@
-package org.plutoengine.gui.font;
-
-import org.joml.Matrix4f;
-import org.joml.Vector3f;
-import org.lwjgl.opengl.GL11;
-
-import org.plutoengine.graphics.font.FontManager;
-import org.plutoengine.graphics.font.FontShader;
-import org.plutoengine.graphics.gl.DrawMode;
-import org.plutoengine.graphics.gl.vao.QuadPresets;
-import org.plutoengine.graphics.gl.vao.VertexArray;
-import org.plutoengine.math.TransformationMatrix;
-
-public class FontRenderer
-{
-    private static final int LINE_HEIGHT = 30;
-    private static final int SPACE_WIDTH = 12;
-
-    private static final int CHAR_WIDTH = 16;
-    private static final int CHAR_HEIGHT = 24;
-
-    private static VertexArray charVAO;
-    private static FontShader fontShader;
-
-    public static void load(FontShader defaultFontShaderIn)
-    {
-        charVAO = QuadPresets.basicNoNeg();
-        fontShader = defaultFontShaderIn;
-    }
-
-    public static void unload()
-    {
-        if (charVAO != null)
-        {
-            charVAO.delete();
-        }
-    }
-
-    public static void prepareInstance(Font font)
-    {
-        GL11.glEnable(GL11.GL_BLEND);
-        fontShader.start();
-        charVAO.bind();
-        charVAO.enableAllAttributes();
-        font.getTexture().bind();
-    }
-
-    public static void drawString(float xPos, float yPos, Object string, Object color, float relativeSize, String fontname, boolean isShadow)
-    {
-        Font font = FontManager.getFontByName(fontname);
-
-        if (font == null)
-        {
-            System.err.println("Font doesn't exist: " + fontname);
-            return;
-        }
-
-        float charWidth = CHAR_WIDTH * relativeSize;
-        float charHeight = CHAR_HEIGHT * relativeSize;
-
-        float lineHeight = LINE_HEIGHT * relativeSize;
-        float spaceWidth = SPACE_WIDTH * relativeSize;
-
-        prepareInstance(font);
-
-        color(color);
-
-        String text = String.valueOf(string);
-
-        float drawX = xPos;
-        float drawY = yPos;
-
-        for (int characterIndex = 0; characterIndex < text.length(); characterIndex++)
-        {
-            int column;
-            int row;
-
-            var currentChar = text.charAt(characterIndex);
-
-            if (text.length() > characterIndex + 1)
-            {
-                var nextChar = text.charAt(characterIndex + 1);
-
-                if (currentChar == '\\' && nextChar == '&')
-                {
-                    continue;
-                }
-
-                // Inline coloring (tm) :) -> &c[0xff770077]
-                if (text.length() > characterIndex + 13)
-                {
-                    if (currentChar == '&' && nextChar == 'c' && text.charAt(characterIndex + 2) == '[' && text.charAt(characterIndex + 13) == ']')
-                    {
-                        char c = '0';
-                        char cBef = '0';
-
-                        if (characterIndex > 0)
-                        {
-                            c = text.charAt(characterIndex - 1);
-                        }
-
-                        if (characterIndex > 1)
-                        {
-                            cBef = text.charAt(characterIndex - 2);
-                        }
-
-                        if (c != '\\' || cBef == '\\')
-                        {
-                            if (!isShadow)
-                            {
-                                color(text.substring(characterIndex + 3, characterIndex + 13));
-                            }
-
-                            characterIndex += 13;
-
-                            continue;
-                        }
-                    }
-                }
-
-                if (text.length() > characterIndex + 2)
-                {
-                    if (currentChar == '&' && nextChar == 'i' && (text.charAt(characterIndex + 2) == '1' || text.charAt(characterIndex + 2) == '0'))
-                    {
-                        char c = '0';
-                        char cBef = '0';
-
-                        if (characterIndex > 0)
-                        {
-                            c = text.charAt(characterIndex - 1);
-                        }
-
-                        if (characterIndex > 1)
-                        {
-                            cBef = text.charAt(characterIndex - 2);
-                        }
-
-                        if (c != '\\' || cBef == '\\')
-                        {
-                            italic(text.charAt(characterIndex + 2) == '1');
-
-                            characterIndex += 2;
-
-                            continue;
-                        }
-                    }
-                }
-            }
-
-            float shift = 0;
-
-            switch (currentChar)
-            {
-                case '\n' -> {
-                    color(color);
-                    drawX = xPos;
-                    drawY += lineHeight;
-                    continue;
-                }
-                case ' ' -> {
-                    drawX += spaceWidth;
-                    continue;
-                }
-                case 'g', 'y', 'p', 'j' -> shift = 6 * relativeSize;
-                default -> {
-                }
-            }
-
-            var fontDefs = font.getDefinitions();
-            var charInf = fontDefs.get(currentChar);
-
-            if (charInf == null)
-            {
-                charInf = fontDefs.get('?');
-            }
-
-            var atlasIndex = charInf.number();
-
-            row = atlasIndex / CHAR_WIDTH;
-            column = atlasIndex % CHAR_WIDTH;
-
-            // Position of the current character in the texture atlas in pixels
-            float u = column * CHAR_WIDTH;
-            float v = row * CHAR_HEIGHT;
-
-            // Offset from the left
-            drawX -= charInf.leftOffset() * relativeSize;
-
-            float posY = shift + drawY;
-
-            fontShader.uvBase.load(u, font.getTextureHeight() - v - CHAR_HEIGHT);
-            fontShader.uvDelta.load(CHAR_WIDTH, CHAR_HEIGHT);
-
-            Matrix4f transformation = TransformationMatrix.create(new Vector3f(drawX, posY, 0), new Vector3f(0, 0, 0), new Vector3f(charWidth, charHeight, 0));
-
-            fontShader.transformationMatrix.load(transformation);
-
-            charVAO.draw(DrawMode.TRIANGLES);
-
-            drawX += charWidth;
-            drawX -= charInf.rightOffset() * relativeSize;
-            drawX += relativeSize;
-        }
-
-        italic(false);
-    }
-
-    public static void color(Object color)
-    {
-        color(color, false);
-    }
-
-    public static void color(Object color, boolean darker)
-    {
-        float dark = 0;
-
-        if (darker)
-        {
-            dark = 0.35f;
-        }
-
-        if (color instanceof float[] c)
-        {
-            if (c.length == 4)
-            {
-                recolor(c[0] - dark, c[1] - dark, c[2] - dark, c[3]);
-            }
-            else if (c.length == 3)
-            {
-                recolor(c[0] - dark, c[1] - dark, c[2] - dark, 1);
-            }
-        }
-
-        if (color instanceof String col)
-        {
-            if (col.length() == 7)
-            {
-                recolor(Integer.valueOf(col.substring(1, 3), 16) / 256f - dark, Integer.valueOf(col.substring(3, 5), 16) / 256f - dark, Integer.valueOf(col.substring(5, 7), 16) / 256f - dark, 1);
-            }
-
-            if (col.length() == 10)
-            {
-                recolor(Integer.valueOf(col.substring(4, 6), 16) / 256f - dark, Integer.valueOf(col.substring(6, 8), 16) / 256f - dark, Integer.valueOf(col.substring(8, 10), 16) / 256f - dark, Integer.valueOf(col.substring(2, 4), 16) / 256f);
-            }
-        }
-    }
-
-    private static void recolor(float r, float g, float b, float a)
-    {
-        fontShader.recolor.load(r, g, b, a);
-    }
-
-    private static void italic(boolean useItalic)
-    {
-        fontShader.italic.load(useItalic);
-    }
-
-    public static void drawString(float x, float y, Object text, float r, float g, float b, float a, float size)
-    {
-        drawString(x, y, text, new float[] { r, g, b, a }, size, "default", false);
-    }
-
-    public static void drawString(float x, float y, Object text)
-    {
-        drawString(x, y, text, new float[] { 0, 0, 0, 1 }, 1, "default", false);
-    }
-
-    public static void drawString(float x, float y, Object text, float r, float g, float b, float a, float size, boolean isShadow)
-    {
-        drawString(x, y, text, new float[] { r, g, b, a }, size, "default", isShadow);
-    }
-
-    public static void drawString(float x, float y, Object text, float r, float g, float b, float a, float size, String fontname, boolean isShadow)
-    {
-        drawString(x, y, text, new float[] { r, g, b, a }, size, fontname, isShadow);
-    }
-
-    public static void drawString(float x, float y, Object text, float r, float g, float b, float a, float size, String fontname)
-    {
-        drawString(x, y, text, new float[] { r, g, b, a }, size, fontname, false);
-    }
-
-    public static void drawString(float xPos, float yPos, Object string, Object color, float relativeSize, String fontname)
-    {
-        drawString(xPos, yPos, string, color, relativeSize, fontname, false);
-    }
-}

engine-core/plutolib/build.gradle.kts

@@ -18,6 +18,8 @@ dependencies {
     api("com.google.guava", "guava", "28.0-jre")
 
     api("org.joml", "joml", Versions.jomlVersion)
+    api("org.joml", "joml-primitives", Versions.jomlPrimitivesVersion)
+
     api("commons-io", "commons-io", "2.6")
 
     api("org.apache.commons", "commons-lang3", "3.12.0")

engine-core/plutolib/src/main/java/org/plutoengine/event/lambda/LambdaEventFactory.java

@@ -2,7 +2,7 @@ package org.plutoengine.event.lambda;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.function.Consumer;
+import java.util.function.Predicate;
 
 /**
  * A simple functional interface based event factory for objects basically
@@ -25,7 +25,7 @@ public class LambdaEventFactory
      */
     public static class LambdaEvent<T>
     {
-        private final List<Consumer<T>> consumers;
+        private final List<Predicate<T>> consumers;
 
         private LambdaEvent()
         {
@@ -42,7 +42,7 @@ public class LambdaEventFactory
          * 
          * @author 493msi
          */
-        public void addListener(Consumer<T> callback)
+        public void addListener(Predicate<T> callback)
         {
             this.consumers.add(callback);
         }
@@ -57,7 +57,7 @@ public class LambdaEventFactory
          * 
          * @author 493msi
          */
-        public void removeListener(Consumer<T> callback)
+        public void removeListener(Predicate<T> callback)
         {
             this.consumers.remove(callback);
         }
@@ -74,7 +74,7 @@ public class LambdaEventFactory
          */
         public void fire(T value)
         {
-            this.consumers.forEach(c -> c.accept(value));
+            this.consumers.removeIf(c -> !c.test(value));
         }
     }
 

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vao/QuadPresets.java

@@ -1,7 +1,5 @@
 package org.plutoengine.graphics.gl.vao;
 
-import org.plutoengine.graphics.gl.vao.attrib.data.VecArray;
-
 /**
  * @author 493msi
  *
@@ -10,48 +8,85 @@ public class QuadPresets
 {
     public static VertexArray basicQuad()
     {
-        float[] uvs = { 0, 0, 1, 0, 1, 1, 0, 1 };
+        float[] uvs = {
+            0, 0,
+            1, 0,
+            1, 1,
+            0, 1 };
 
-        float[] positions = { -1, 1, 1, 1, 1, -1, -1, -1 };
+        float[] positions = {
+            -1, 1,
+            1, 1,
+            1, -1,
+            -1, -1 };
 
-        int[] indices = { 0, 1, 2, 0, 2, 3 };
+        int[] indices = {
+            0, 1, 2,
+            0, 2, 3
+        };
 
         VertexArrayBuilder vab = new VertexArrayBuilder();
-        vab.vertices(new VecArray<>(positions, 2));
-        vab.uvs(new VecArray<>(uvs, 2));
-        vab.indices(new VecArray<>(indices, 1));
+        vab.vertices(positions, 2);
+        vab.uvs(uvs, 2);
+        vab.indices(indices);
 
-        return vab.export();
+        return vab.build();
     }
 
     public static VertexArray halvedSize()
     {
-        float[] uvs = { 0, 0, 1, 0, 1, 1, 0, 1 };
+        float[] uvs = {
+            0, 0,
+            1, 0,
+            1, 1,
+            0, 1
+        };
 
-        float[] positions = { -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f, -0.5f, -0.5f };
+        float[] positions = {
+            -0.5f, 0.5f,
+            0.5f, 0.5f,
+            0.5f, -0.5f,
+            -0.5f, -0.5f
+        };
 
-        int[] indices = { 0, 1, 2, 0, 2, 3 };
+        int[] indices = {
+            0, 1, 2,
+            0, 2, 3
+        };
 
         VertexArrayBuilder vab = new VertexArrayBuilder();
-        vab.vertices(new VecArray<>(positions, 2));
-        vab.uvs(new VecArray<>(uvs, 2));
-        vab.indices(new VecArray<>(indices, 1));
-        return vab.export();
+        vab.vertices(positions, 2);
+        vab.uvs(uvs, 2);
+        vab.indices(indices);
+        return vab.build();
     }
 
     public static VertexArray basicNoNeg()
     {
-        float[] uvs = { 0, 0, 1, 0, 1, 1, 0, 1 };
+        float[] uvs = {
+            0, 0,
+            1, 0,
+            1, 1,
+            0, 1
+        };
 
-        float[] positions = { 0, 1, 1, 1, 1, 0, 0, 0 };
+        float[] positions = {
+            0, 1,
+            1, 1,
+            1, 0,
+            0, 0
+        };
 
-        int[] indices = { 0, 1, 2, 0, 2, 3 };
+        int[] indices = {
+            0, 1, 2,
+            0, 2, 3
+        };
 
         VertexArrayBuilder vab = new VertexArrayBuilder();
-        vab.vertices(new VecArray<>(positions, 2));
-        vab.uvs(new VecArray<>(uvs, 2));
-        vab.indices(new VecArray<>(indices, 1));
+        vab.vertices(positions, 2);
+        vab.uvs(uvs, 2);
+        vab.indices(indices);
 
-        return vab.export();
+        return vab.build();
     }
 }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vao/VertexArray.java

@@ -3,18 +3,16 @@ package org.plutoengine.graphics.gl.vao;
 import org.lwjgl.opengl.GL33;
 import org.lwjgl.system.MemoryUtil;
 import org.plutoengine.graphics.gl.DrawMode;
+import org.plutoengine.graphics.gl.vao.attrib.AttributeInfo;
 import org.plutoengine.graphics.gl.vbo.ArrayBuffer;
 import org.plutoengine.graphics.gl.vbo.IndexArrayBuffer;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Vector;
+import java.util.*;
 
 import org.plutoengine.logger.Logger;
 import org.plutoengine.logger.SmartSeverity;
 
-public class VertexArray
+public class VertexArray implements AutoCloseable
 {
     protected final List<Integer> usedAttributes;
     protected final Vector<ArrayBuffer<?>> vertexAttributes;
@@ -34,22 +32,29 @@ public class VertexArray
 
         this.glID = GL33.glGenVertexArrays();
 
-        Logger.logf(SmartSeverity.ADDED, "Vertex array ID %d created...\n", this.glID);
+        Logger.logf(SmartSeverity.ADDED, "Vertex array ID %d created...%n", this.glID);
     }
 
-    public void createArrayAttribute(ArrayBuffer<?> buffer, int attribID)
+    public void createArrayAttribute(AttributeInfo info, ArrayBuffer<?> buffer)
     {
+        var attribID = info.position();
+        var dimensions = info.dimensions();
+        var type = buffer.getDataType();
+
         this.bind();
         buffer.bind();
-        GL33.glVertexAttribPointer(attribID, buffer.getVertexDimensions(), buffer.getType().getGLID(), false, 0, 0);
+        GL33.glVertexAttribPointer(attribID, dimensions, type.getGLID(), false, 0, 0);
 
         this.vertexAttributes.set(attribID, buffer);
         this.usedAttributes.add(attribID);
 
         if (!this.hasIndices())
-        {
-            this.vertexCount = buffer.getVertexCount();
+            this.vertexCount = buffer.getSize() / dimensions;
     }
+
+    public Set<Integer> getUsedAttributes()
+    {
+        return Set.copyOf(this.usedAttributes);
     }
 
     public List<ArrayBuffer<?>> getVertexAttributes()
@@ -64,7 +69,7 @@ public class VertexArray
 
     public void enableAllAttributes()
     {
-        this.usedAttributes.forEach(GL33::glEnableVertexAttribArray);
+        this.usedAttributes.forEach(VertexArray::enableAttribute);
     }
 
     public void bindIndices(IndexArrayBuffer buffer)
@@ -72,7 +77,7 @@ public class VertexArray
         this.bind();
         buffer.bind();
         this.indices = buffer;
-        this.vertexCount = buffer.getVertexCount();
+        this.vertexCount = buffer.getSize();
     }
 
     public void bind()
@@ -89,7 +94,7 @@ public class VertexArray
     {
         if (this.hasIndices())
         {
-            GL33.glDrawElements(mode.getGLID(), this.vertexCount, this.indices.getType().getGLID(), MemoryUtil.NULL);
+            GL33.glDrawElements(mode.getGLID(), this.vertexCount, this.indices.getDataType().getGLID(), MemoryUtil.NULL);
         }
         else
         {
@@ -101,7 +106,7 @@ public class VertexArray
     {
         if (this.hasIndices())
         {
-            GL33.glDrawElementsInstanced(mode.getGLID(), this.vertexCount, this.indices.getType().getGLID(), MemoryUtil.NULL, count);
+            GL33.glDrawElementsInstanced(mode.getGLID(), this.vertexCount, this.indices.getDataType().getGLID(), MemoryUtil.NULL, count);
         }
         else
         {
@@ -119,15 +124,17 @@ public class VertexArray
         return this.indices != null;
     }
 
-    public void delete()
+    public void close()
     {
-        this.usedAttributes.stream().map(this.vertexAttributes::get).forEach(ArrayBuffer::delete);
+        this.usedAttributes.stream()
+                           .map(this.vertexAttributes::get)
+                           .forEach(ArrayBuffer::close);
         this.vertexAttributes.clear();
         this.usedAttributes.clear();
 
         if (this.indices != null)
         {
-            this.indices.delete();
+            this.indices.close();
             this.indices = null;
         }
 
@@ -142,4 +149,14 @@ public class VertexArray
     {
         return this.glID;
     }
+
+    public static void enableAttribute(int attribute)
+    {
+        GL33.glEnableVertexAttribArray(attribute);
+    }
+
+    public static void disableAttribute(int attribute)
+    {
+        GL33.glDisableVertexAttribArray(attribute);
+    }
 }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vao/VertexArrayBuilder.java

@@ -1,9 +1,12 @@
 package org.plutoengine.graphics.gl.vao;
 
+import org.plutoengine.graphics.gl.vao.attrib.AttributeInfo;
 import org.plutoengine.graphics.gl.vao.attrib.ReservedAttributes;
-import org.plutoengine.graphics.gl.vao.attrib.data.VecArray;
-import org.plutoengine.graphics.gl.vbo.FloatArrayBuffer;
-import org.plutoengine.graphics.gl.vbo.IndexArrayBuffer;
+import org.plutoengine.graphics.gl.vbo.*;
+
+import java.nio.Buffer;
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
 
 public class VertexArrayBuilder
 {
@@ -14,28 +17,68 @@ public class VertexArrayBuilder
         this.va = new VertexArray();
     }
 
-    public VertexArrayBuilder vertices(VecArray<float[]> vertices)
+    public VertexArrayBuilder vertices(FloatBuffer vertices, int dimensions)
     {
-        this.va.createArrayAttribute(new FloatArrayBuffer(vertices), ReservedAttributes.POSITION);
+        return this.attrib(ReservedAttributes.POSITION, dimensions, vertices);
+    }
+
+    public VertexArrayBuilder uvs(FloatBuffer uvs, int dimensions)
+    {
+        return this.attrib(ReservedAttributes.UV, dimensions, uvs);
+    }
+
+    public VertexArrayBuilder colors(FloatBuffer colors, int dimensions)
+    {
+        return this.attrib(ReservedAttributes.COLOR, dimensions, colors);
+    }
+
+    public VertexArrayBuilder vertices(float[] vertices, int dimensions)
+    {
+        return this.vertices(FloatBuffer.wrap(vertices), dimensions);
+    }
+
+    public VertexArrayBuilder uvs(float[] uvs, int dimensions)
+    {
+        return this.uvs(FloatBuffer.wrap(uvs), dimensions);
+    }
+
+    public VertexArrayBuilder colors(float[] colors, int dimensions)
+    {
+        return this.colors(FloatBuffer.wrap(colors), dimensions);
+    }
+
+    public VertexArrayBuilder attrib(int attribute, int dimensions, Buffer data)
+    {
+        if (data instanceof FloatBuffer fab)
+        {
+            var attrInfo = new AttributeInfo(EnumArrayBufferType.FLOAT, attribute, dimensions);
+            var attr = FloatArrayBuffer.from(fab);
+            this.va.createArrayAttribute(attrInfo, attr);
+        }
+        else if (data instanceof IntBuffer iab)
+        {
+            var attrInfo = new AttributeInfo(EnumArrayBufferType.INT, attribute, dimensions);
+            var attr = IntArrayBuffer.from(iab);
+            this.va.createArrayAttribute(attrInfo, attr);
+        }
 
         return this;
     }
 
-    public VertexArrayBuilder uvs(VecArray<float[]> uvs)
+    public VertexArrayBuilder indices(int[] indices)
     {
-        this.va.createArrayAttribute(new FloatArrayBuffer(uvs), ReservedAttributes.UV);
+        return this.indices(IntBuffer.wrap(indices));
+    }
+
+    public VertexArrayBuilder indices(IntBuffer indices)
+    {
+        var data = IndexArrayBuffer.from(indices);
+        this.va.bindIndices(data);
 
         return this;
     }
 
-    public VertexArrayBuilder indices(VecArray<int[]> indices)
-    {
-        this.va.bindIndices(new IndexArrayBuffer(indices));
-
-        return this;
-    }
-
-    public VertexArray export()
+    public VertexArray build()
     {
         return this.va;
     }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vao/attrib/AttributeInfo.java

@@ -0,0 +1,12 @@
+package org.plutoengine.graphics.gl.vao.attrib;
+
+import org.intellij.lang.annotations.MagicConstant;
+import org.plutoengine.graphics.gl.vbo.EnumArrayBufferType;
+
+public record AttributeInfo(
+    EnumArrayBufferType type,
+    @MagicConstant(valuesFromClass = ReservedAttributes.class) int position,
+    int dimensions
+)
+{
+}

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vao/attrib/data/VecArray.java

@@ -1,46 +0,0 @@
-package org.plutoengine.graphics.gl.vao.attrib.data;
-
-import java.lang.reflect.Array;
-
-public class VecArray<T>
-{
-    private final T data;
-    private final int vecDimensions;
-    private final int vertexCount;
-
-    public VecArray(T data, int vecDimensions)
-    {
-        var dataType = data.getClass();
-
-        if (!dataType.isArray())
-        {
-            throw new IllegalStateException("Input data must be of an array type!");
-        }
-
-        this.data = data;
-        this.vecDimensions = vecDimensions;
-        var dataLength = Array.getLength(data);
-
-        if (dataLength % vecDimensions != 0)
-        {
-            throw new IllegalArgumentException("Data size must be divisible by the amount of vector dimensions!");
-        }
-
-        this.vertexCount = dataLength / vecDimensions;
-    }
-
-    public T getData()
-    {
-        return this.data;
-    }
-
-    public int getVecDimensions()
-    {
-        return this.vecDimensions;
-    }
-
-    public int getVertexCount()
-    {
-        return this.vertexCount;
-    }
-}

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vbo/ArrayBuffer.java

@@ -1,43 +1,45 @@
 package org.plutoengine.graphics.gl.vbo;
 
-import org.plutoengine.graphics.gl.vao.attrib.data.VecArray;
+import org.lwjgl.opengl.GL33;
 
-import static org.lwjgl.opengl.GL15.*;
+import java.nio.Buffer;
 
-public abstract class ArrayBuffer<T extends VecArray<?>>
+public sealed abstract class ArrayBuffer<T extends Buffer> implements AutoCloseable permits FloatArrayBuffer, IndexArrayBuffer, IntArrayBuffer
 {
     protected int glID;
 
-    private final int vertexDimensions;
-    private final int vertexCount;
+    protected final int type;
+    private final int size;
 
-    public ArrayBuffer(T data)
+    protected ArrayBuffer(int type, int size)
     {
-        this.glID = glGenBuffers();
-        this.bind();
-        this.bindData(data);
-
-        this.vertexDimensions = data.getVecDimensions();
-        this.vertexCount = data.getVertexCount();
+        this.glID = GL33.glGenBuffers();
+        this.type = type;
+        this.size = size;
     }
 
-    public abstract EnumArrayBufferType getType();
+    public abstract EnumArrayBufferType getDataType();
 
-    protected abstract void bindData(T data);
+    public abstract void writePartialData(T data, long offset);
+
+    public int getSize()
+    {
+        return this.size;
+    }
 
     public void bind()
     {
-        glBindBuffer(GL_ARRAY_BUFFER, this.glID);
+        GL33.glBindBuffer(this.type, this.glID);
     }
 
     public void unbind()
     {
-        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        GL33.glBindBuffer(this.type, 0);
     }
 
-    public void delete()
+    public void close()
     {
-        glDeleteBuffers(this.glID);
+        GL33.glDeleteBuffers(this.glID);
 
         this.glID = 0;
     }
@@ -46,14 +48,4 @@ public abstract class ArrayBuffer<T extends VecArray<?>>
     {
         return this.glID;
     }
-
-    public int getVertexDimensions()
-    {
-        return this.vertexDimensions;
-    }
-
-    public int getVertexCount()
-    {
-        return this.vertexCount;
-    }
 }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vbo/FloatArrayBuffer.java

@@ -1,24 +1,60 @@
 package org.plutoengine.graphics.gl.vbo;
 
 import org.lwjgl.opengl.GL33;
-import org.plutoengine.graphics.gl.vao.attrib.data.VecArray;
+import org.lwjgl.system.MemoryUtil;
 
-public class FloatArrayBuffer extends ArrayBuffer<VecArray<float[]>>
+import java.nio.FloatBuffer;
+
+public final class FloatArrayBuffer extends ArrayBuffer<FloatBuffer>
 {
-    public FloatArrayBuffer(VecArray<float[]> data)
+    private FloatArrayBuffer(int size)
     {
-        super(data);
+        super(GL33.GL_ARRAY_BUFFER, size);
     }
 
     @Override
-    protected void bindData(VecArray<float[]> vertexData)
+    public void writePartialData(FloatBuffer data, long offset)
     {
-        GL33.glBufferData(GL33.GL_ARRAY_BUFFER, vertexData.getData(), GL33.GL_STATIC_DRAW);
+        GL33.glBufferSubData(this.type, offset, data);
     }
 
     @Override
-    public EnumArrayBufferType getType()
+    public EnumArrayBufferType getDataType()
     {
         return EnumArrayBufferType.FLOAT;
     }
+
+    public static FloatArrayBuffer from(FloatBuffer data)
+    {
+        if (!data.isDirect())
+        {
+            var fb = MemoryUtil.memAllocFloat(data.remaining());
+            fb.put(data);
+            fb.flip();
+            var fab = from(fb);
+            MemoryUtil.memFree(fb);
+            return fab;
+        }
+
+        var fab = new FloatArrayBuffer(data.remaining());
+        fab.bind();
+        GL33.glBufferData(fab.type, data, GL33.GL_STATIC_DRAW);
+        return fab;
+    }
+
+    public static FloatArrayBuffer from(float[] data)
+    {
+        var fab = new FloatArrayBuffer(data.length);
+        fab.bind();
+        GL33.glBufferData(fab.type, data, GL33.GL_STATIC_DRAW);
+        return fab;
+    }
+
+    public static FloatArrayBuffer empty(int size)
+    {
+        var fab = new FloatArrayBuffer(size);
+        fab.bind();
+        GL33.glBufferData(fab.type, size, GL33.GL_STATIC_DRAW);
+        return fab;
+    }
 }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vbo/IndexArrayBuffer.java

@@ -1,50 +1,60 @@
 package org.plutoengine.graphics.gl.vbo;
 
-import static org.lwjgl.opengl.GL15.GL_ELEMENT_ARRAY_BUFFER;
-import static org.lwjgl.opengl.GL15.GL_STATIC_DRAW;
-import static org.lwjgl.opengl.GL15.glBindBuffer;
-import static org.lwjgl.opengl.GL15.glBufferData;
+import org.lwjgl.opengl.GL33;
+import org.lwjgl.system.MemoryUtil;
 
-import org.plutoengine.graphics.gl.vao.attrib.data.VecArray;
+import java.nio.IntBuffer;
 
-public class IndexArrayBuffer extends ArrayBuffer<VecArray<int[]>>
+public final class IndexArrayBuffer extends ArrayBuffer<IntBuffer>
 {
-    public IndexArrayBuffer(int[] data)
+    private IndexArrayBuffer(int size)
     {
-        super(new VecArray<>(data, 1));
-    }
-
-    public IndexArrayBuffer(VecArray<int[]> data)
-    {
-        super(data);
-
-        if (data.getVecDimensions() != 1)
-        {
-            throw new IllegalArgumentException("Index buffers must have exactly one vertex dimension!");
-        }
+        super(GL33.GL_ELEMENT_ARRAY_BUFFER, size);
     }
 
     @Override
-    public void bind()
+    public void writePartialData(IntBuffer data, long offset)
     {
-        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this.glID);
+        GL33.glBufferSubData(this.type, offset, data);
     }
 
     @Override
-    protected void bindData(VecArray<int[]> data)
-    {
-        glBufferData(GL_ELEMENT_ARRAY_BUFFER, data.getData(), GL_STATIC_DRAW);
-    }
-
-    @Override
-    public void unbind()
-    {
-        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
-    }
-
-    @Override
-    public EnumArrayBufferType getType()
+    public EnumArrayBufferType getDataType()
     {
         return EnumArrayBufferType.UNSIGNED_INT;
     }
+
+    public static IndexArrayBuffer from(IntBuffer data)
+    {
+        if (!data.isDirect())
+        {
+            var ib = MemoryUtil.memAllocInt(data.remaining());
+            ib.put(data);
+            ib.flip();
+            var iab = from(ib);
+            MemoryUtil.memFree(ib);
+            return iab;
+        }
+
+        var iab = new IndexArrayBuffer(data.remaining());
+        iab.bind();
+        GL33.glBufferData(iab.type, data, GL33.GL_STATIC_DRAW);
+        return iab;
+    }
+
+    public static IndexArrayBuffer from(int[] data)
+    {
+        var iab = new IndexArrayBuffer(data.length);
+        iab.bind();
+        GL33.glBufferData(iab.type, data, GL33.GL_STATIC_DRAW);
+        return iab;
+    }
+
+    public static IndexArrayBuffer empty(int size)
+    {
+        var iab = new IndexArrayBuffer(size);
+        iab.bind();
+        GL33.glBufferData(iab.type, size, GL33.GL_DYNAMIC_DRAW);
+        return iab;
+    }
 }

engine-core/plutomesher/src/main/java/org/plutoengine/graphics/gl/vbo/IntArrayBuffer.java

@@ -0,0 +1,60 @@
+package org.plutoengine.graphics.gl.vbo;
+
+import org.lwjgl.opengl.GL33;
+import org.lwjgl.system.MemoryUtil;
+
+import java.nio.IntBuffer;
+
+public non-sealed class IntArrayBuffer extends ArrayBuffer<IntBuffer>
+{
+    private IntArrayBuffer(int size)
+    {
+        super(GL33.GL_ARRAY_BUFFER, size);
+    }
+
+    @Override
+    public void writePartialData(IntBuffer data, long offset)
+    {
+        GL33.glBufferSubData(this.type, offset, data);
+    }
+
+    @Override
+    public EnumArrayBufferType getDataType()
+    {
+        return EnumArrayBufferType.INT;
+    }
+
+    public static IntArrayBuffer from(IntBuffer data)
+    {
+        if (!data.isDirect())
+        {
+            var ib = MemoryUtil.memAllocInt(data.remaining());
+            ib.put(data);
+            ib.flip();
+            var iab = from(ib);
+            MemoryUtil.memFree(ib);
+            return iab;
+        }
+
+        var iab = new IntArrayBuffer(data.remaining());
+        iab.bind();
+        GL33.glBufferData(iab.type, data, GL33.GL_STATIC_DRAW);
+        return iab;
+    }
+
+    public static IntArrayBuffer from(int[] data)
+    {
+        var iab = new IntArrayBuffer(data.length);
+        iab.bind();
+        GL33.glBufferData(iab.type, data, GL33.GL_STATIC_DRAW);
+        return iab;
+    }
+
+    public static IntArrayBuffer empty(int size)
+    {
+        var iab = new IntArrayBuffer(size);
+        iab.bind();
+        GL33.glBufferData(iab.type, size, GL33.GL_DYNAMIC_DRAW);
+        return iab;
+    }
+}

engine-core/plutoruntime/src/main/java/org/plutoengine/mod/ModLoader.java

@@ -208,6 +208,8 @@ public final class ModLoader extends PlutoLocalComponent
 
                 this.loadedModStack.addLast(mod);
             }
+
+            this.loadingPhase = EnumModLoadingPhase.DONE;
         }
         catch (Exception e)
         {

engine-core/plutoruntime/src/main/java/org/plutoengine/resource/filesystem/EnumBackingFileSystem.java

@@ -35,7 +35,10 @@ public enum EnumBackingFileSystem
             return fs.getPath(path);
         }),
     FS_ZIP("zip",
-        uri -> FileSystems.newFileSystem(uri, Map.of()),
+        uri -> {
+            var provider = FileSystems.getDefault().provider();
+            return FileSystems.newFileSystem(provider.getPath(uri), Map.of(), null);
+        },
         (uri, fileSystem) -> fileSystem.getPath("/"),
         (fs, address, ext) -> {
             var sep = fs.getSeparator();

engine-core/plutoruntime/src/main/java/org/plutoengine/tpl/ImageABGR.java

@@ -4,7 +4,7 @@ import java.awt.image.BufferedImage;
 import java.nio.ByteBuffer;
 
 /**
- * A wrapper around a native color buffer for easier handling
+ * A wrapper around a native ABGR buffer for easier handling
  * by various APIs, such as OpenGL and GLFW.
  *
  * TPNImage is <em>always</em> assumed to be ABGR due to image format

engine-core/plutoruntime/src/main/java/org/plutoengine/tpl/ImageLoader.java

@@ -9,16 +9,18 @@ import java.nio.ByteOrder;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
+import org.lwjgl.BufferUtils;
 import org.plutoengine.logger.Logger;
 import org.plutoengine.logger.SmartSeverity;
 
 /**
- * Quick ABGR (8-bit per channel, 32 bits per pixel) image loader for OpenGL textures.
+ * Quick ABGR (8-bit per channel, 32 bits per pixel) and grayscale image loader for OpenGL textures.
  * Color component swizzling may be needed.
  *
  * @author 493msi
  *
  * @see ImageABGR
+ * @see ImageY
  *
  * @since pre-alpha
  */
@@ -34,8 +36,6 @@ public class ImageLoader
     static
     {
         placeholder = new BufferedImage(PLACEHOLDER_SIZE, PLACEHOLDER_SIZE, BufferedImage.TYPE_INT_ARGB);
-        var data = placeholder.getData();
-        var dataBuffer = (DataBufferInt) data.getDataBuffer();
 
         for (int i = 0; i < PLACEHOLDER_SIZE * PLACEHOLDER_SIZE; i++)
         {
@@ -43,7 +43,7 @@ public class ImageLoader
             int y = i / PLACEHOLDER_SIZE;
             boolean checker = x / PLACEHOLDER_CHECKEDBOARD_SQUARE_SIZE % 2 == y / PLACEHOLDER_CHECKEDBOARD_SQUARE_SIZE % 2;
 
-            dataBuffer.setElem(i, checker ? 0xFFFF0000 : 0xFF000000);
+            placeholder.setRGB(x, y, checker ? 0xFFFF0000 : 0xFF000000);
         }
     }
 
@@ -105,7 +105,7 @@ public class ImageLoader
     /**
      * Writes a {@link BufferedImage} into a {@link ImageABGR} buffer.
      *
-     * If the input {@link Path} is null, a placeholder will be generated.
+     * If the input {@link BufferedImage} is null, a placeholder will be generated.
      *
      * @param image The source {@link BufferedImage}
      * @param flipY Whether the image should be flipped vertically (for OpenGL uses)
@@ -147,7 +147,7 @@ public class ImageLoader
         DataBuffer dataBuffer = data.getDataBuffer();
         DataBufferByte byteBuffer = (DataBufferByte) dataBuffer;
         byte[] byteData = byteBuffer.getData();
-        ByteBuffer buffer = ByteBuffer.allocateDirect(width * height * 4).order(ByteOrder.nativeOrder());
+        ByteBuffer buffer = BufferUtils.createByteBuffer(width * height * 4);
         buffer.put(byteData);
         buffer.flip();
 
@@ -156,9 +156,9 @@ public class ImageLoader
 
 
     /**
-     * Writes a {@link BufferedImage} into a {@link ImageABGR} buffer.
+     * Writes a {@link BufferedImage} into an {@link ImageABGR} buffer.
      *
-     * If the input {@link Path} is null, a placeholder will be generated.
+     * If the input {@link BufferedImage} is null, a placeholder will be generated.
      *
      * @param image The source {@link BufferedImage}
      *
@@ -172,4 +172,75 @@ public class ImageLoader
     {
         return loadImageSpecial(image, true);
     }
+
+    /**
+     * Writes a {@link BufferedImage} into an {@link ImageY} buffer.
+     *
+     * If the input {@link Path} is null, a placeholder will be generated.
+     *
+     * @param image The source {@link BufferedImage}
+     * @param flipY Whether the image should be flipped vertically (for OpenGL uses)
+     *
+     * @return The output {@link ImageY}, never null
+     *
+     * @see ImageY
+     *
+     * @since 22.1.0.0-alpha.1
+     * */
+    public static ImageY loadImageGrayscaleSpecial(@Nullable BufferedImage image, boolean flipY)
+    {
+        if (image == null)
+        {
+            Logger.log(SmartSeverity.WARNING, "[TPL] Null BufferedImage supplied, generating a placeholder.");
+
+            return loadImageGrayscaleSpecial(placeholder, flipY);
+        }
+
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        if (width > 16384 || height > 16384 || width < 1 || height < 1)
+        {
+            Logger.log(SmartSeverity.ERROR, "[TPL] BufferedImage size is invalid (< 1 or > 16384), generating a placeholder.");
+
+            return loadImageGrayscaleSpecial(placeholder, flipY);
+        }
+
+        BufferedImage copy = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
+        Graphics2D imgGraphics = copy.createGraphics();
+        imgGraphics.drawImage(image,
+            0, flipY ? copy.getHeight() : 0, copy.getWidth(), flipY ? 0 : copy.getHeight(),
+            0, 0, image.getWidth(), image.getHeight(),
+            null); // I wonder if this is pixel-perfect
+        imgGraphics.dispose();
+
+        Raster data = copy.getRaster();
+        DataBuffer dataBuffer = data.getDataBuffer();
+        DataBufferByte byteBuffer = (DataBufferByte) dataBuffer;
+        byte[] byteData = byteBuffer.getData();
+        ByteBuffer buffer = BufferUtils.createByteBuffer(width * height);
+        buffer.put(byteData);
+        buffer.flip();
+
+        return new ImageY(buffer, width, height);
+    }
+
+    /**
+     * Writes a {@link BufferedImage} into an {@link ImageY} buffer.
+     *
+     * If the input {@link BufferedImage} is null, a placeholder will be generated.
+     *
+     * @param image The source {@link BufferedImage}
+     *
+     * @return The output {@link ImageABGR}, never null
+     *
+     * @see ImageY
+     *
+     * @since 22.1.0.0-alpha.1
+     * */
+    public static ImageY loadImageGrayscale(@Nullable BufferedImage image)
+    {
+        return loadImageGrayscaleSpecial(image, true);
+    }
+
 }

engine-core/plutoruntime/src/main/java/org/plutoengine/tpl/ImageY.java

@@ -0,0 +1,71 @@
+package org.plutoengine.tpl;
+
+import java.awt.image.BufferedImage;
+import java.nio.ByteBuffer;
+
+/**
+ * A wrapper around a native Y buffer for easier handling
+ * by various APIs, such as OpenGL and GLFW.
+ *
+ * @author 493msi
+ *
+ * @since 22.1.0.0-alpha.0
+ */
+public class ImageY
+{
+    private final ByteBuffer data;
+    private final int width;
+    private final int height;
+
+    /**
+     * Creates a new {@link ImageY} from the specified buffer, width and height.
+     *
+     * @param bfr The input {@link ByteBuffer}
+     * @param width This image's width
+     * @param height This image's height
+     *
+     * @since pre-alpha
+     * */
+    public ImageY(ByteBuffer bfr, int width, int height)
+    {
+        this.data = bfr;
+        this.width = width;
+        this.height = height;
+    }
+
+    /**
+     * Returns the width of the color buffer.
+     *
+     * @return The width of this {@link ImageY}
+     *
+     * @since pre-alpha
+     * */
+    public int getWidth()
+    {
+        return this.width;
+    }
+
+    /**
+     * Returns the height of the color buffer.
+     *
+     * @return The height of this {@link ImageY}
+     *
+     * @since pre-alpha
+     * */
+    public int getHeight()
+    {
+        return this.height;
+    }
+
+    /**
+     * Returns a read-only view of the color buffer.
+     *
+     * @return This image's color {@link ByteBuffer}
+     *
+     * @since pre-alpha
+     * */
+    public ByteBuffer getData()
+    {
+        return this.data.asReadOnlyBuffer();
+    }
+}

engine-core/plutoshader/src/main/java/org/plutoengine/shader/IShaderProgram.java

@@ -3,7 +3,7 @@ package org.plutoengine.shader;
 import org.lwjgl.opengl.GL33;
 import org.plutoengine.shader.type.IShader;
 
-public interface IShaderProgram
+public interface IShaderProgram extends AutoCloseable
 {
     int getID();
 
@@ -27,5 +27,9 @@ public interface IShaderProgram
         GL33.glUseProgram(0);
     }
 
-    void dispose();
+    default void close()
+    {
+        this.stop();
+        GL33.glDeleteProgram(this.getID());
+    }
 }

engine-core/plutoshader/src/main/java/org/plutoengine/shader/RenderShaderBuilder.java

@@ -127,8 +127,8 @@ public class RenderShaderBuilder
 
                 if (this.tempShaders)
                 {
-                    this.vertexShader.dispose();
-                    this.fragmentShader.dispose();
+                    this.vertexShader.close();
+                    this.fragmentShader.close();
                 }
 
                 return null;
@@ -146,8 +146,8 @@ public class RenderShaderBuilder
 
                 if (this.tempShaders)
                 {
-                    this.vertexShader.dispose();
-                    this.fragmentShader.dispose();
+                    this.vertexShader.close();
+                    this.fragmentShader.close();
                 }
 
                 return null;
@@ -158,8 +158,8 @@ public class RenderShaderBuilder
 
             if (this.tempShaders)
             {
-                this.vertexShader.dispose();
-                this.fragmentShader.dispose();
+                this.vertexShader.close();
+                this.fragmentShader.close();
             }
 
             for (var field : fields)
@@ -214,8 +214,13 @@ public class RenderShaderBuilder
                         {
                             AutomaticUniforms.VIEWPORT_PROJECTION.addListener(mat4 ->
                             {
+                                if (program.getID() == 0)
+                                    return false;
+
                                 program.start();
                                 umat4.load(mat4);
+
+                                return true;
                             });
                             Logger.logf(SmartSeverity.ADDED, "Uniform '%s' ID %d in '%s' ID %d now listens to AutomaticUniforms.VIEWPORT_PROJECTION.\n", uniformName, location, shaderClass.getCanonicalName(), programID);
                         }

engine-core/plutoshader/src/main/java/org/plutoengine/shader/ShaderBase.java

@@ -15,12 +15,13 @@ public abstract class ShaderBase implements IShaderProgram
     }
 
     @Override
-    public void dispose()
+    public void close()
     {
         Logger.logf(SmartSeverity.REMOVED, "Disposing of shader ID %d of type %s...\n", this.getID(), this.getClass().getCanonicalName());
 
-        this.stop();
-        GL33.glDeleteProgram(this.programID);
+        IShaderProgram.super.close();
+
+        this.programID = 0;
     }
 
     protected void bindAttribute(int attribute, String name)

engine-core/plutoshader/src/main/java/org/plutoengine/shader/type/IShader.java

@@ -2,11 +2,11 @@ package org.plutoengine.shader.type;
 
 import org.lwjgl.opengl.GL33;
 
-public interface IShader
+public interface IShader extends AutoCloseable
 {
     int getID();
 
-    default void dispose()
+    default void close()
     {
         GL33.glDeleteShader(this.getID());
     }

engine-core/plutospritesheet/src/main/java/org/plutoengine/graphics/PlutoSpriteSheetMod.java

@@ -53,9 +53,9 @@ public class PlutoSpriteSheetMod implements IModEntryPoint
     {
         FramebufferTiledSpriteSheet.setSpriteShader(null);
 
-        spriteSheetShader.dispose();
-        shaderRectangle2D.dispose();
-        shader2D.dispose();
+        spriteSheetShader.close();
+        shaderRectangle2D.close();
+        shader2D.close();
 
         RectangleRenderer2D.unload();
         Renderer2D.unload();

engine-core/plutospritesheet/src/main/java/org/plutoengine/graphics/RectangleRenderer2D.java

@@ -58,12 +58,12 @@ public class RectangleRenderer2D
     {
         if (standardQuad != null)
         {
-            standardQuad.delete();
+            standardQuad.close();
         }
 
         if (centeredQuad != null)
         {
-            centeredQuad.delete();
+            centeredQuad.close();
         }
     }
 

engine-core/plutospritesheet/src/main/java/org/plutoengine/graphics/Renderer2D.java

@@ -51,12 +51,12 @@ public class Renderer2D
     {
         if (standardQuad != null)
         {
-            standardQuad.delete();
+            standardQuad.close();
         }
 
         if (centeredQuad != null)
         {
-            centeredQuad.delete();
+            centeredQuad.close();
         }
     }
 

engine-core/plutospritesheet/src/main/java/org/plutoengine/graphics/sprite/DisposableTextureSprite.java

@@ -12,7 +12,7 @@ public class DisposableTextureSprite extends PartialTextureSprite implements Spr
     @Override
     public void delete()
     {
-        this.spriteTexture.delete();
+        this.spriteTexture.close();
         this.spriteTexture = null;
     }
 }

engine-core/plutospritesheet/src/main/java/org/plutoengine/graphics/spritesheet/FramebufferTiledSpriteSheet.java

@@ -69,7 +69,7 @@ public class FramebufferTiledSpriteSheet extends TiledSpriteSheet<RectangleTextu
         }
 
         this.spriteFBO.unbind();
-        this.spriteSheet.delete();
+        this.spriteSheet.close();
         this.spriteSheet = newSpriteSheet;
     }
 
@@ -88,7 +88,7 @@ public class FramebufferTiledSpriteSheet extends TiledSpriteSheet<RectangleTextu
         this.sampler.delete();
         this.sampler = null;
 
-        this.spriteSheet.delete();
+        this.spriteSheet.close();
 
         // this.spriteSheet = null;
         // Done by parent

engine-core/plutotexture/src/main/java/org/plutoengine/graphics/texture/Texture.java

@@ -13,7 +13,7 @@ import org.plutoengine.logger.SmartSeverity;
 import org.plutoengine.tpl.ImageABGR;
 import org.plutoengine.tpl.ImageLoader;
 
-public abstract class Texture
+public abstract class Texture implements AutoCloseable
 {
     protected int glID;
     protected final int type;
@@ -49,7 +49,7 @@ public abstract class Texture
         GL33.glBindTexture(this.type, 0);
     }
 
-    public void delete()
+    public void close()
     {
         Logger.logf(SmartSeverity.REMOVED, "Texture with ID %d of type '%s' deleted...\n", this.glID, this.getClass().getSimpleName());
 

engine-demo/basic-application/mods/tefek.demo.basicapplication/info.json

@@ -6,6 +6,10 @@
     "icons": {
       "path": "icons",
       "type": "open"
+    },
+    "fonts": {
+      "path": "fonts.zip",
+      "type": "zip"
     }
   }
 }

engine-demo/basic-application/mods/tefek.plutogui/default/shaders/FragmentFontShader.glsl

@@ -1,15 +1,26 @@
 #version 330 core
 
 in vec2 uvCoordinates;
+flat in int atlasPage;
 
-uniform sampler2DRect textureSampler;
+uniform sampler2DArray textureSampler;
 uniform vec4 recolor;
 
 out vec4 out_Color;
 
 void main(void)
 {
-    vec4 color = texture(textureSampler, uvCoordinates);
+    vec3 textCoords = vec3(uvCoordinates, atlasPage);
 
-    out_Color = color * recolor;
+    float threshold = 1 - 240.0 / 255.0;
+
+    float signedDist = 1 - texture(textureSampler, textCoords).r;
+
+    float fw = fwidth(signedDist);
+
+    vec4 col = recolor;
+
+    col.a *= smoothstep(threshold + 0.2, threshold, signedDist);
+
+    out_Color = col;
 }

engine-demo/basic-application/mods/tefek.plutogui/default/shaders/VertexFontShader.glsl

@@ -2,26 +2,21 @@
 
 in vec2 position;
 in vec2 uvCoords;
+in int page;
 
 out vec2 uvCoordinates;
+flat out int atlasPage;
 
 uniform mat4 projection;
-uniform mat4 transformation;
-
-uniform vec2 uvBase;
-uniform vec2 uvDelta;
+uniform mat3 transformation;
 
 uniform int italic;
 
 void main(void)
 {
-	vec2 pos = vec2(position.x, position.y);
-	
-	if(italic == 1)
-	{
-		pos = vec2(position.x - position.y / 4.0, position.y);
-	}
-			
-	uvCoordinates = uvBase + uvCoords * uvDelta;
-	gl_Position = projection * transformation * vec4(pos, 0.0, 1.0);
+	vec2 pos = vec2(position.x - position.y * italic / 4.0, position.y);
+	atlasPage = page;
+	uvCoordinates = uvCoords;
+	vec3 transformed = vec3((transformation * vec3(pos, 1.0)).xy, 0.0);
+	gl_Position = projection * vec4(transformed, 1.0);
 }

engine-demo/basic-application/src/main/java/org/plutoengine/demo/BasicApplicationDemoMod.java

@@ -1,6 +1,9 @@
 package org.plutoengine.demo;
 
 import org.plutoengine.graphics.PlutoGUIMod;
+import org.plutoengine.graphics.gui.STBTTFont;
+import org.plutoengine.mod.IModEntryPoint;
+import org.plutoengine.mod.Mod;
 import org.plutoengine.mod.ModEntry;
 
 @ModEntry(
@@ -8,6 +11,19 @@ import org.plutoengine.mod.ModEntry;
     version = VersionInfo.GAME_VERSION,
     dependencies = { PlutoGUIMod.class }
 )
-public class BasicApplicationDemoMod
+public class BasicApplicationDemoMod implements IModEntryPoint
 {
+    public static STBTTFont font;
+
+    @Override
+    public void onLoad(Mod mod)
+    {
+        font = STBTTFont.load(mod.getResource("fonts$robotoregular#ttf"));
+    }
+
+    @Override
+    public void onUnload()
+    {
+        font.close();
+    }
 }

engine-demo/basic-application/src/main/java/org/plutoengine/demo/Main.java

@@ -1,17 +1,29 @@
 package org.plutoengine.demo;
 
+import org.lwjgl.glfw.GLFW;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL33;
 
 import org.plutoengine.PlutoApplication;
-import org.plutoengine.PlutoLocal;
 import org.plutoengine.display.Display;
-import org.plutoengine.display.Framerate;
-import org.plutoengine.gui.font.FontHelper;
-import org.plutoengine.gui.font.FontRenderer;
+import org.plutoengine.graphics.PlutoGUIMod;
+import org.plutoengine.graphics.Renderer2D;
+import org.plutoengine.graphics.TestFontRenderer;
+import org.plutoengine.graphics.gl.vao.QuadPresets;
+import org.plutoengine.graphics.gui.FontShader;
+import org.plutoengine.graphics.texture.MagFilter;
+import org.plutoengine.graphics.texture.MinFilter;
+import org.plutoengine.graphics.texture.WrapMode;
+import org.plutoengine.graphics.texture.texture2d.Texture2D;
+import org.plutoengine.input.InputBus;
 import org.plutoengine.math.ProjectionMatrix;
-import org.plutoengine.mod.ModLoader;
+import org.plutoengine.shader.RenderShaderBuilder;
 import org.plutoengine.shader.uniform.auto.AutomaticUniforms;
+import org.plutoengine.tpl.ImageLoader;
+
+import java.awt.image.BufferedImage;
+import java.nio.file.Path;
+import java.util.List;
 
 public class Main extends PlutoApplication
 {
@@ -20,6 +32,7 @@ public class Main extends PlutoApplication
     public static void main(String[] args) throws Exception
     {
         var config = new PlutoApplication.StartupConfig();
+        config.vsync(1);
         config.windowName("JSRClone " + VersionInfo.GAME_VERSION);
 
         INSTANCE = new Main();
@@ -35,6 +48,82 @@ public class Main extends PlutoApplication
         var projection = ProjectionMatrix.createOrtho2D(this.display.getWidth(), this.display.getHeight());
         AutomaticUniforms.VIEWPORT_PROJECTION.fire(projection);
 
+        TestFontRenderer.drawString(BasicApplicationDemoMod.font, "Testing ");
+
+        if (InputBus.Keyboard.pressed(GLFW.GLFW_KEY_R))
+        {
+            var shader = PlutoGUIMod.fontShader;
+
+            var newShader = new RenderShaderBuilder(
+                PlutoGUIMod.instance.getResource("shaders.VertexFontShader#glsl"),
+                PlutoGUIMod.instance.getResource("shaders.FragmentFontShader#glsl")
+            ).build(FontShader.class, false);
+
+            if (newShader != null)
+            {
+                shader.stop();
+                shader.close();
+                PlutoGUIMod.fontShader = newShader;
+
+                newShader.start();
+                newShader.recolor.load(1, 1, 1, 1);
+            }
+        }
+
+        /*
+        var va = Renderer2D.standardQuad;
+        va.bind();
+        va.enableAllAttributes();
+
+        var font = BasicApplicationDemoMod.font;
+        var tex = font.getAtlas();
+
+        tex.bind();
+
+        var shader = PlutoGUIMod.fontShader;
+
+        shader.start();
+        shader.recolor.load(1, 1, 1, 1);
+        shader.italic.load(false);
+        shader.page.load(0);
+        shader.uvBase.load(0.0f, 0.0f);
+        shader.uvDelta.load(1.0f, 1.0f);
+
+        for (int i = 0; i < tex.getDepth(); i++)
+        {
+            var padding = 8;
+            var x = i % 3;
+            var y = i / 3;
+            var size = this.size;
+
+            shader.transformationMatrix.load(TransformationMatrix.create(20 + x * (size + padding), 20 + y * (size + padding), 0,
+                0, 0, 0,
+                size, size, 1));
+
+            shader.page.load(i);
+            va.draw(DrawMode.TRIANGLES);
+        }
+
+        this.size += InputBus.Mouse.getScrollY() * 20;
+
+        if (InputBus.Keyboard.pressed(GLFW.GLFW_KEY_R))
+        {
+            var newShader = new RenderShaderBuilder(
+                PlutoGUIMod.instance.getResource("shaders.VertexFontShader#glsl"),
+                PlutoGUIMod.instance.getResource("shaders.FragmentFontShader#glsl")
+            ).build(FontShader.class, false);
+
+            if (newShader != null)
+            {
+                shader.stop();
+                shader.close();
+                PlutoGUIMod.fontShader = newShader;
+            }
+        }
+
+         */
+
+        /*
         var buildStr = String.format("Build %s", VersionInfo.GAME_BUILD);
         var strWidth = FontHelper.calcStringWidth(buildStr, "default", 0.75f);
         FontRenderer.drawString(this.display.getWidth() - strWidth + 1, 3, buildStr, 0, 0, 0, 1, 0.75f, true);
@@ -57,6 +146,8 @@ public class Main extends PlutoApplication
 
             modNr++;
         }
+
+         */
     }
 
     public static Display getDisplay()

libra

@@ -0,0 +1 @@
+Subproject commit 7e3c146c9a70c2ec24ded435021f279a757c7aff

settings.gradle.kts

@@ -2,7 +2,8 @@ rootProject.name = "plutoengine-sdk"
 
 include("plutoengine",
         "plutoengine-ext",
-        "plutoengine-demos")
+        "plutoengine-demos",
+        "libra")
 
 project(":plutoengine").projectDir = file("./engine-core")
 project(":plutoengine-ext").projectDir = file("./engine-ext")