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comparison shaders/default.f.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
comparison
equal deleted inserted replaced
1976:3dd9c68472fb 1977:f3cca4b3f17a
1 1
2 uniform sampler2D textures[2]; 2 uniform sampler2D textures[2];
3 uniform mediump vec2 texsize;
3 4
4 varying mediump vec2 texcoord; 5 varying mediump vec2 texcoord;
5 6
6 void main() 7 void main()
7 { 8 {
8 mediump vec2 modifiedCoord0 = vec2(texcoord.x, (floor(texcoord.y * 512.0 + 0.25) + 0.5)/512.0); 9 mediump vec2 modifiedCoord0 = vec2(texcoord.x, (floor(texcoord.y * texsize.y + 0.25) + 0.5)/texsize.y);
9 mediump vec2 modifiedCoord1 = vec2(texcoord.x, (floor(texcoord.y * 512.0 - 0.25) + 0.5)/512.0); 10 mediump vec2 modifiedCoord1 = vec2(texcoord.x, (floor(texcoord.y * texsize.y - 0.25) + 0.5)/texsize.y);
10 gl_FragColor = mix( 11 gl_FragColor = mix(
11 texture2D(textures[1], modifiedCoord1), 12 texture2D(textures[1], modifiedCoord1),
12 texture2D(textures[0], modifiedCoord0), 13 texture2D(textures[0], modifiedCoord0),
13 (sin(texcoord.y * 1024.0 * 3.14159265359) + 1.0) * 0.5 14 (sin(texcoord.y * texsize.y * 6.283185307) + 1.0) * 0.5
14 ); 15 );
15 } 16 }