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Cycles: principled absorption color now has more effect at lower values.

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Brecht Van Lommel
2018-02-28 04:36:55 +01:00
parent 4762c099d7
commit 8cc7f48581
3 changed files with 13 additions and 2 deletions
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2
intern/cycles/kernel/svm/svm_closure.h
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@@ -893,7 +893,7 @@ ccl_device void svm_node_principled_volume(KernelGlobals *kg, ShaderData *sd, fl
/* Add extinction weight. */
float3 zero = make_float3(0.0f, 0.0f, 0.0f);
float3 one = make_float3(1.0f, 1.0f, 1.0f);
float3 absorption_color = stack_load_float3(stack, absorption_color_offset);
float3 absorption_color = max(sqrt(stack_load_float3(stack, absorption_color_offset)), zero);
float3 absorption = max(one - color, zero) * max(one - absorption_color, zero);
volume_extinction_setup(sd, (color + absorption) * density);
}