Particle Edit ignores object occlusion #71558

New Issue

Conrad Dueck · 2019-11-13T23:03:15+01:00

Conrad Dueck commented

2019-11-13 23:03:15 +01:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 398.11

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-13 08:24, hash: c73a99ef90
Worked: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f5449

Short description of error
Particle Edit (combing, cut, etc...) ignores object occlusion

Exact steps for others to reproduce the error
Based on the attached file "hair_grooming_backfacecull.blend".

Open the file
switch to a Bottom view
Enable Particle Edit mode
Comb small circles within the sphere (so, with backface cull, this combing should be ignored by the hair)
Change the viewpoint so you can see the hair did not respect sphere blocking the comb

Also confirmed issue persists in today's 2.82 Alpha (version: 2.82 (sub 1), branch: master, commit date: 2019-11-13 10:49, hash: 97d79ca844)

hair_grooming_backfacecull.blend

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 398.11 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-13 08:24, hash: `c73a99ef90` Worked: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `f6cb5f5449` **Short description of error** Particle Edit (combing, cut, etc...) ignores object occlusion **Exact steps for others to reproduce the error** Based on the attached file "hair_grooming_backfacecull.blend". 1. Open the file 2. switch to a Bottom view 3. Enable Particle Edit mode 4. Comb small circles within the sphere (so, with backface cull, this combing should be ignored by the hair) 5. Change the viewpoint so you can see the hair did not respect sphere blocking the comb Also confirmed issue persists in today's 2.82 Alpha (version: 2.82 (sub 1), branch: master, commit date: 2019-11-13 10:49, hash: `97d79ca844`) [hair_grooming_backfacecull.blend](https://archive.blender.org/developer/F8065325/hair_grooming_backfacecull.blend)

Conrad Dueck commented

2019-11-13 23:03:15 +01:00

Added subscriber: @ConradDueck

blender-admin commented

2019-11-13 23:03:15 +01:00

#71987 was marked as duplicate of this issue

Conrad Dueck commented

2019-11-13 23:06:02 +01:00

This comment was removed by @ConradDueck

*This comment was removed by @ConradDueck*

Blazej Floch commented

2019-11-15 23:11:22 +01:00

Added subscriber: @Blazej-Floch

Blazej Floch commented

2019-11-15 23:11:22 +01:00

We identified the issue to be:
[e6425aa2bf] Manage GPU_matrix stacks per GPUContext

Internally we reverted but feel free to find a better fix.

We identified the issue to be: [e6425aa2bf3e6a9bba2f10066dc3f09cea11086f] Manage GPU_matrix stacks per GPUContext Internally we reverted but feel free to find a better fix.

Germano Cavalcante commented

2019-11-21 18:19:16 +01:00

Added subscribers: @JulianEisel, @mano-wii

Julian Eisel was assigned by Germano Cavalcante

2019-11-21 18:19:16 +01:00

Germano Cavalcante commented

2019-11-21 18:19:16 +01:00

I can confirm that e6425aa2bf introduced the problem.
I suppose the problem is related to ED_view3d_backbuf_depth_validate.
@JulianEisel, would you mind taking a look at this?

I can confirm that e6425aa2bf introduced the problem. I suppose the problem is related to `ED_view3d_backbuf_depth_validate`. @JulianEisel, would you mind taking a look at this?

Germano Cavalcante changed title from ~~Particle Edit combing ignores backface cull~~ to Particle Edit ignores object occlusion

2019-11-21 18:35:43 +01:00

Philipp Oeser commented

2019-11-28 11:01:18 +01:00

Added subscribers: @Jarwa, @lichtwerk

blender-admin commented

2019-11-28 17:40:44 +01:00

This issue was referenced by 6334f97093

This issue was referenced by 6334f97093d356835c0a5e48a20fd38ee72cdb4d

blender-admin commented

2019-11-28 17:40:44 +01:00

This issue was referenced by a8d29ad6e0

This issue was referenced by a8d29ad6e0628e315a1cb741b6136ad8823422dd

Germano Cavalcante commented

2019-11-28 17:41:33 +01:00

Changed status from 'Open' to: 'Resolved'

Germano Cavalcante closed this issue

2019-11-28 17:41:33 +01:00

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Particle Edit ignores object occlusion #71558