29 lines
627 B
GLSL
29 lines
627 B
GLSL
uniform sampler2D taccum;
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uniform sampler2D trevealage;
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uniform sampler2DMS tcolor;
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uniform int samples;
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out vec4 fragColor;
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void main() {
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ivec2 C = ivec2(gl_FragCoord.xy);
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vec4 accum = texelFetch(taccum, C, 0);
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float aa = texelFetch(trevealage, C, 0).r;
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vec4 col = texelFetch(tcolor, C, 0);
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for (int i = 1; i < samples; i++) {
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col += texelFetch(tcolor, C, i);
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}
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col /= float(samples);
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float r = accum.a;
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accum.a = aa;
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if (r >= 1.0) {
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fragColor = vec4(col.rgb, 0.0);
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} else {
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vec3 alp = clamp(accum.rgb / clamp(accum.a, 1e-4, 5e4), 0.0, 1.0);
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fragColor = vec4(col.rgb * r + alp * (1.0 - r), 0.0);
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}
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}
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