66 lines
2.3 KiB
GLSL
Executable File
66 lines
2.3 KiB
GLSL
Executable File
/*
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* MIT License
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*
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* Copyright (c) 2022 493msi
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#version 330 core
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in vec2 position;
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in vec2 uvCoords;
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in int page;
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in vec2 paintUVCoords;
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uniform int paintType;
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flat out float paintGradientAngleCos;
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flat out float paintGradientAngleSin;
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flat out float[2] paintGradientEndsUnrotated;
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uniform vec2[2] paintGradientEnds;
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out vec2 uvCoordinates;
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out vec2 paintUVCoordinates;
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flat out int atlasPage;
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uniform mat4 projection;
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uniform mat3 transformation;
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void main(void)
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{
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atlasPage = page;
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uvCoordinates = uvCoords;
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paintUVCoordinates = paintUVCoords;
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vec3 transformed = vec3((transformation * vec3(position, 1.0)).xy, 0.0);
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if (paintType == 1)
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{
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float dy = paintGradientEnds[1].y - paintGradientEnds[0].y;
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float dx = paintGradientEnds[1].x - paintGradientEnds[0].x;
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float paintGradientAngle = atan(-dy, dx);
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paintGradientAngleCos = cos(paintGradientAngle);
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paintGradientAngleSin = sin(paintGradientAngle);
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paintGradientEndsUnrotated[0] = paintGradientEnds[0].x * paintGradientAngleCos - paintGradientEnds[0].y * paintGradientAngleSin;
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paintGradientEndsUnrotated[1] = paintGradientEnds[1].x * paintGradientAngleCos - paintGradientEnds[1].y * paintGradientAngleSin;
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}
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gl_Position = projection * vec4(transformed, 1.0);
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} |