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Cycles: don't write light passes for shadow catcher objects

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Makes it easier to composite the Combined image from these passes.

Fixes T96758
This commit is contained in:
Brecht Van Lommel
2022-03-24 18:30:27 +01:00
parent 4a1b0ea902
commit 9ef400ddf7
1 changed files with 12 additions and 0 deletions
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12
intern/cycles/kernel/film/accumulate.h
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@@ -352,6 +352,12 @@ ccl_device_inline void kernel_accum_emission_or_background_pass(KernelGlobals kg
pass_offset = pass;
}
else if (kernel_data.kernel_features & KERNEL_FEATURE_LIGHT_PASSES) {
/* Don't write any light passes for shadow catcher, for easier
* compositing back together of the combined pass. */
if (path_flag & PATH_RAY_SHADOW_CATCHER_HIT) {
return;
}
if (path_flag & PATH_RAY_SURFACE_PASS) {
/* Indirectly visible through reflection. */
const float3 diffuse_weight = INTEGRATOR_STATE(state, path, pass_diffuse_weight);
@@ -437,6 +443,12 @@ ccl_device_inline void kernel_accum_light(KernelGlobals kg,
if (kernel_data.film.light_pass_flag & PASS_ANY) {
const uint32_t path_flag = INTEGRATOR_STATE(state, shadow_path, flag);
/* Don't write any light passes for shadow catcher, for easier
* compositing back together of the combined pass. */
if (path_flag & PATH_RAY_SHADOW_CATCHER_HIT) {
return;
}
if (kernel_data.kernel_features & KERNEL_FEATURE_LIGHT_PASSES) {
int pass_offset = PASS_UNUSED;