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#extension GL_ARB_texture_rectangle : enable
uniform sampler2DRect MyTex;
uniform sampler2DRect MyTex1;
varying vec2 texcoord1;
varying vec2 texcoord2;
void main (void)
{
vec4 color = texture2DRect(MyTex, texcoord1);
vec4 color2 = texture2DRect(MyTex1, texcoord1); // texcoord2 does not work.
gl_FragColor = (color + color2) / 2.;
}
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