10 lines
219 B
Plaintext
10 lines
219 B
Plaintext
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uniform sampler2D SCREEN_TEXTURE;
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void fragment() {
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highp vec4 color = zTextureSpec(SCREEN_TEXTURE, UV);
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highp float grey = dot(color.rgb, vec3(0.299, 0.587, 0.114));
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COLOR = vec4(vec3(grey), color.a);
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}
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