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annotate shaders/default.v.glsl @ 1977:f3cca4b3f17a

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Allow use of NPOT textures as a config option. Useful for some mobile GPUs
author Michael Pavone <pavone@retrodev.com>
date Sat, 09 May 2020 21:15:33 -0700
parents fa9ae059e4d3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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488
32f053ad9b02 Basic OpenGL rendering is working
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1
32f053ad9b02 Basic OpenGL rendering is working
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2 attribute vec2 pos;
1658
fa9ae059e4d3 Added support for GLES in addition to desktop GL
Mike Pavone <pavone@retrodev.com>
parents: 1184
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3 varying mediump vec2 texcoord;
fa9ae059e4d3 Added support for GLES in addition to desktop GL
Mike Pavone <pavone@retrodev.com>
parents: 1184
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4 uniform mediump float width, height;
1977
f3cca4b3f17a Allow use of NPOT textures as a config option. Useful for some mobile GPUs
Michael Pavone <pavone@retrodev.com>
parents: 1658
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5 uniform mediump vec2 texsize;
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6
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7 void main()
32f053ad9b02 Basic OpenGL rendering is working
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8 {
32f053ad9b02 Basic OpenGL rendering is working
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9 gl_Position = vec4(pos, 0.0, 1.0);
1977
f3cca4b3f17a Allow use of NPOT textures as a config option. Useful for some mobile GPUs
Michael Pavone <pavone@retrodev.com>
parents: 1658
diff changeset
10 texcoord = sign(pos) * vec2(0.5 * width / texsize.x, -0.5 * height / texsize.y) + vec2(0.5 * width / texsize.x, 0.5 * height / texsize.y);
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32f053ad9b02 Basic OpenGL rendering is working
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11 }