Weizhen Huang weizhen
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  • Joined on 2022-10-03
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Weizhen Huang commented on issue blender/blender#123448 2024-06-23 11:15:58 +02:00
Possibly incorrect rendering result when using zero-spread area light on a standard Lambertian object in Blender 3.6.12

Probably in 3.6.13 or 3.6.14 this problem will be fixed, then you don't need to disable Multiple Importance yourself.

Weizhen Huang commented on issue blender/blender#123451 2024-06-23 11:02:36 +02:00
The Huang model of the Principled Hair BSDF is too dark

@Fernando-Alcala Thanks for your comparisons, they are very helpful! Regarding the roughness matching issue you mentioned, Huang and Chiang use different roughness models. Huang's roughness…

Weizhen Huang commented on issue blender/blender#123448 2024-06-23 10:34:37 +02:00
Possibly incorrect rendering result when using zero-spread area light on a standard Lambertian object in Blender 3.6.12

Are you sure you disaled Multiple Importance on the light Area_90? When I disable it the result is 0.25, multiplied by 4/pi gives 0.318, which is expected.

Weizhen Huang approved blender/blender#123593 2024-06-22 13:29:59 +02:00
Cycles: Use denoising device info to pick automatic denoiser

Makes sense.

Weizhen Huang commented on pull request blender/blender#123530 2024-06-21 20:04:53 +02:00
Fix #123528: Cycles backend denoiser choice did not match UI on NVIDIA

Yes, it is because of this commit that I hit the assertion.

Weizhen Huang commented on pull request blender/blender#123530 2024-06-21 19:43:19 +02:00
Fix #123528: Cycles backend denoiser choice did not match UI on NVIDIA

I hit an assertion

intern/cycles/integrator/denoiser_oidn_gpu.cpp Lines 126 to 128 in 685817888e
case DEVICE_CPU:
/* This is the GPU denoiser - CPU devices shouldn't end up here. */
assert(0);

Weizhen Huang closed issue blender/blender#104504 2024-06-21 18:23:16 +02:00
Cycles volume low density cutoff
Weizhen Huang commented on issue blender/blender#104504 2024-06-21 18:23:12 +02:00
Cycles volume low density cutoff

This is due to CLOSURE_WEIGHT_CUTOFF having a hard-coded value of 1e-5f. Closing as a duplicate of #117667.

Weizhen Huang pushed to main at blender/blender 2024-06-21 15:10:09 +02:00
f26e84098a Merge branch 'blender-v4.2-release'
23e497d1af Fix: Memory leak in volume with packed file
47158e1606 Fix #123528: Cycles viewport denoiser not using GPU for CPU render
Compare 3 commits »
Weizhen Huang deleted branch fix-memory-leak-volume-packed from weizhen/blender 2024-06-21 15:09:10 +02:00
Weizhen Huang pushed to blender-v4.2-release at blender/blender 2024-06-21 15:09:09 +02:00
23e497d1af Fix: Memory leak in volume with packed file
Weizhen Huang merged pull request blender/blender#123556 2024-06-21 15:09:08 +02:00
Fix: Memory leak in volume with packed file
Weizhen Huang commented on pull request blender/blender#123556 2024-06-21 14:59:30 +02:00
Fix: Memory leak in volume with packed file

Noticed when opening the file from blender/blender#123537 (comment)

Weizhen Huang created pull request blender/blender#123556 2024-06-21 14:56:26 +02:00
Fix: Memory leak in volume with packed file
Weizhen Huang created branch fix-memory-leak-volume-packed in weizhen/blender 2024-06-21 14:55:30 +02:00
Weizhen Huang pushed to fix-memory-leak-volume-packed at weizhen/blender 2024-06-21 14:55:30 +02:00
8307e0496e Fix: Memory leak in volume with packed file
47158e1606 Fix #123528: Cycles viewport denoiser not using GPU for CPU render
046a8f92eb Fix #123539: Object Info node incorrectly reports dependency cycle
9004e7b668 Fix: Compiler warning about format string
a13a116de9 Fix #112804: Compositor movie not rendering if cache is full
Compare 6 commits »
Weizhen Huang commented on pull request blender/blender#123537 2024-06-21 11:55:06 +02:00
Fix: Cycles Light Tree gives low weight to distant lights in large volume

For large scale scenes the quality is still not as good as in 4.1. I tried various approaches, for example computing a proper min_weight, but they did not work well in smaller scenes.

Weizhen Huang commented on pull request blender/blender#123537 2024-06-21 11:52:05 +02:00
Fix: Cycles Light Tree gives low weight to distant lights in large volume

In 4.2 we changed the sampling method in volume to only query the light tree once in volume segment (fdc2962bebb47e5d55564fcf30b4586f57f4311a). This does not work well when the volume has a large…

Weizhen Huang created pull request blender/blender#123537 2024-06-21 10:04:58 +02:00
Fix: Cycles Light Tree gives low weight to distant lights in large volume
Weizhen Huang created branch fix-light-tree-in-large-volume-4.2 in weizhen/blender 2024-06-21 10:01:59 +02:00