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22 lines
387 B
22 lines
387 B
#version 150
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uniform sampler2DRect tex0;
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in vec2 tex_c;
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out vec4 outputColor;
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void main()
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{
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vec4 texColor = texture(tex0, tex_c);
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// Discard fragments with alpha below a threshold
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if (texColor.a < 0.1) {
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discard;
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}
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vec3 color = texColor.rgb;
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color = vec3(dot(color, vec3(0.299, 0.587, 0.114)));
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outputColor = vec4(color, texColor.a);
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}
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