Changeset 2092 for trunk/tools/neercs/video/simple.lolfxTweet

Timestamp:

Nov 19, 2012, 1:45:47 AM (10 years ago)

Author:

sam

Message:

neercs: do not pass the texture coordinates from the application to
the GL server; instead, simply deduce them from the vertex coordinates
and interpolate them in the fragment shader.

File:

• trunk/tools/neercs/video/simple.lolfx (modified) (2 diffs)

trunk/tools/neercs/video/simple.lolfx

@@ -3 +3 @@
 #version 120
 
+varying vec2 pass_TexCoord;
+
 void main()
 {
     gl_Position = gl_Vertex;
-    gl_TexCoord[0] = gl_MultiTexCoord0;
+    pass_TexCoord = vec2(0.5, 0.5) + 0.5 * gl_Vertex.xy;
 }
 
@@ -13 +15 @@
 #version 120
 
+varying vec2 pass_TexCoord;
+
 uniform sampler2D texture;
 
 void main(void)
 {
-    gl_FragColor = texture2D(texture, gl_TexCoord[0].xy);
+    gl_FragColor = texture2D(texture, pass_TexCoord);
 }