mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2025-12-24 00:03:11 +01:00
01b577fa58
* Improve performance of panning the viewport with OpenGL renderer * Use a shader to perform the copy rect operation * Clear the frame buffer after its initialized * Handle Y flip in shader, be explicit about FBO draw state * Target 330 core, remove the y flip handling * Explicitly use GL_RGB8 and not GL_RGB * Add more error handling, clear depth when depth is created * Lets try this * Make sure blend and depth are disabled * Bind the source fbo for reading * Try this alternative approach * Set read and draw buffer before glBlitFramebuffer * Apple is forcing my hand * Update changelog.txt
18 lines
374 B
GLSL
18 lines
374 B
GLSL
#version 330 core
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in vec2 vPosition;
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in vec2 vTextureCoordinate;
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out vec2 fTextureCoordinate;
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uniform vec4 uSourceRect;
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uniform vec2 uTextureSize;
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void main()
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{
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gl_Position = vec4(vPosition, 0.0, 1.0);
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vec2 srcPos = vec2(uSourceRect.xy);
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vec2 srcSize = vec2(uSourceRect.zw);
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fTextureCoordinate = (srcPos + vTextureCoordinate * srcSize) / uTextureSize;
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}
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