16 lines
343 B
Plaintext
16 lines
343 B
Plaintext
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// Multi-texture fragment shader
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// Brian Paul
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// Composite second texture over first.
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// We're assuming the 2nd texture has a meaningful alpha channel.
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uniform sampler2D tex1;
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uniform sampler2D tex2;
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void main()
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{
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vec4 t1 = texture2D(tex1, gl_Color.xy);
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vec4 t2 = texture2D(tex2, gl_Color.yz);
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gl_FragColor = mix(t1, t2, t2.w);
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}
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