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Fix T103507: Distant lights partially contribute to wrong lightgroup

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The the BSDF-sampling half of MIS next-event estimation for distant lights was
using the background lightgroup instead of the lamp's lightgroup.
This commit is contained in:
Lukas Stockner 2023-01-06 01:08:17 +01:00
parent d290b8b2b9
commit faca2c614b
1 changed files with 1 additions and 2 deletions
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3
intern/cycles/kernel/integrator/shade_background.h
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@ -185,8 +185,7 @@ ccl_device_inline void integrate_distant_lights(KernelGlobals kg,
/* Write to render buffer. */
const float3 throughput = INTEGRATOR_STATE(state, path, throughput);
kernel_accum_emission(
kg, state, throughput * light_eval, render_buffer, kernel_data.background.lightgroup);
kernel_accum_emission(kg, state, throughput * light_eval, render_buffer, ls.group);
}
}
}