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Fix T95308, T93913: Cycles mist pass wrong with SSS shader

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It was wrongly writing passes twice, for both the surface entry and exit points.
We can skip code for filtering closures, emission and holdout also, as these do
nothing with only a subsurface diffuse closure present.
This commit is contained in:
Brecht Van Lommel
2022-05-05 21:52:36 +02:00
parent e4931ab86d
commit 1b566b70c1
1 changed files with 29 additions and 26 deletions
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27
intern/cycles/kernel/integrator/shade_surface.h
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@@ -525,8 +525,10 @@ ccl_device bool integrate_surface(KernelGlobals kg,
subsurface_shader_data_setup(kg, state, &sd, path_flag);
INTEGRATOR_STATE_WRITE(state, path, flag) &= ~PATH_RAY_SUBSURFACE;
}
else
#endif
{
/* Filter closures. */
shader_prepare_surface_closures(kg, state, &sd, path_flag);
#ifdef __HOLDOUT__
@@ -543,28 +545,29 @@ ccl_device bool integrate_surface(KernelGlobals kg,
}
#endif
#ifdef __PASSES__
/* Write render passes. */
PROFILING_EVENT(PROFILING_SHADE_SURFACE_PASSES);
kernel_write_data_passes(kg, state, &sd, render_buffer);
#endif
/* Load random number state. */
RNGState rng_state;
path_state_rng_load(state, &rng_state);
/* Perform path termination. Most paths have already been terminated in
* the intersect_closest kernel, this is just for emission and for dividing
* throughput by the probability at the right moment.
*
* Also ensure we don't do it twice for SSS at both the entry and exit point. */
if (!(path_flag & PATH_RAY_SUBSURFACE) && integrate_surface_terminate(state, path_flag)) {
if (integrate_surface_terminate(state, path_flag)) {
return false;
}
/* Write render passes. */
#ifdef __PASSES__
PROFILING_EVENT(PROFILING_SHADE_SURFACE_PASSES);
kernel_write_data_passes(kg, state, &sd, render_buffer);
#endif
#ifdef __DENOISING_FEATURES__
kernel_write_denoising_features_surface(kg, state, &sd, render_buffer);
#endif
}
/* Load random number state. */
RNGState rng_state;
path_state_rng_load(state, &rng_state);
/* Direct light. */
PROFILING_EVENT(PROFILING_SHADE_SURFACE_DIRECT_LIGHT);