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diff 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
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--- a/shaders/default.v.glsl	Sat May 09 13:15:49 2020 -0700
+++ b/shaders/default.v.glsl	Sat May 09 21:15:33 2020 -0700
@@ -2,9 +2,10 @@
 attribute vec2 pos;
 varying mediump vec2 texcoord;
 uniform mediump float width, height;
+uniform mediump vec2 texsize;
 
 void main()
 {
 	gl_Position = vec4(pos, 0.0, 1.0);
-	texcoord = sign(pos) * vec2(width / 1024.0, height / -1024.0) + vec2(width / 1024.0, height / 1024.0);
+	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);
 }