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#pragma BLENDER_REQUIRE(common_smaa_lib.glsl)
void main()
{
#if SMAA_STAGE == 0
/* Detect edges in color and revealage buffer. */
out_edges = SMAALumaEdgeDetectionPS(uvs, offset, colorTex);
/* Discard if there is no edge. */
if (dot(out_edges, float2(1.0, 1.0)) == 0.0) {
discard;
}
#elif SMAA_STAGE == 1
out_weights = SMAABlendingWeightCalculationPS(
uvs, pixcoord, offset, edgesTex, areaTex, searchTex, vec4(0));
#elif SMAA_STAGE == 2
out_color = vec4(0.0);
if (mixFactor > 0.0) {
out_color += SMAANeighborhoodBlendingPS(uvs, offset[0], colorTex, blendTex) * mixFactor;
}
if (mixFactor < 1.0) {
out_color += texture(colorTex, uvs) * (1.0 - mixFactor);
}
out_color /= taaAccumulatedWeight;
/* Exit log2 space used for Antialiasing. */
out_color = exp2(out_color) - 0.5;
/* Avoid float precision issue. */
if (out_color.a > 0.999) {
out_color.a = 1.0;
}
#endif
}
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