Regression: Texture Painting: Subdiv modifier breaks texture color sampling #117338

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opened 2024-01-19 16:09:57 +01:00 by Simon Thommes · 6 comments
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System Information
Operating system: Linux-6.7.0-gentoo-x86_64-AMD_Ryzen_9_5950X_16-Core_Processor-with-glibc2.38 64 Bits, X11 UI
Graphics card: NVIDIA RTX A6000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 545.29.06

Blender Version
Broken: version: 4.0, 4.1.0 Alpha, branch: main, commit date: 2024-01-19 08:24, hash: 1dfb41bc7550
Worked: 3.6.5

Short description of error
Using a subdivision surface modifier on a mesh breaks the functionality of the color sampler to sample the texture correctly and instead the screen color is sampled, including the viewport shading.

Exact steps for others to reproduce the error

See video or file:
texture_sampling_subdiv.blend

**System Information** Operating system: Linux-6.7.0-gentoo-x86_64-AMD_Ryzen_9_5950X_16-Core_Processor-with-glibc2.38 64 Bits, X11 UI Graphics card: NVIDIA RTX A6000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 545.29.06 **Blender Version** Broken: version: 4.0, 4.1.0 Alpha, branch: main, commit date: 2024-01-19 08:24, hash: `1dfb41bc7550` Worked: 3.6.5 **Short description of error** Using a subdivision surface modifier on a mesh breaks the functionality of the color sampler to sample the texture correctly and instead the screen color is sampled, including the viewport shading. <video src="/attachments/632e475b-6d97-4399-bf81-9459ed7ca5b2" title="bug-texture_sampling_subdiv-2024-01-19_16.09.07.mp4" controls></video> **Exact steps for others to reproduce the error** See video or file: [texture_sampling_subdiv.blend](/attachments/257fc602-5d35-401a-8b08-047262e2ba0d)
Simon Thommes added the
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labels 2024-01-19 16:09:57 +01:00

Can't reproduce this issue, even from scratch with b2ef92361f. I assume you have used sample color operator?

Can't reproduce this issue, even from scratch with b2ef92361fd7824d3b64383449de9c4719be12bf. I assume you have used sample color operator?
Member

I can confirm when GPU Subdivision is disabled

I can confirm when GPU Subdivision is disabled
Pratik Borhade changed title from Texture Painting: Subdiv modifier breaks texture color sampling to Regression: Texture Painting: Subdiv modifier breaks texture color sampling 2024-01-22 07:50:18 +01:00
Author
Member

Just wanted to mention that with GPU subdiv it's even more broken:

Just wanted to mention that with GPU subdiv it's even more broken: <video src="/attachments/9155ce37-f043-4507-a832-4737920df656" title="bug-color_sampling_gpu_subdiv-2024-01-22_10.50.22.mp4" controls></video>
Member

I see. BTW, broke between: 23862ec60e38 - 66d20c8723e6, checking further

I see. BTW, broke between: `23862ec60e38 - 66d20c8723e6`, checking further
Member

First bad commit: e64b3c8212
@HooglyBoogly ^

First bad commit: e64b3c821252fc8707b4dcd9f8d1a0dee45c7d3f @HooglyBoogly ^
Hans Goudey self-assigned this 2024-01-23 18:46:56 +01:00

Any update here? @HooglyBoogly

Any update here? @HooglyBoogly
Hans Goudey added
Type
Bug
and removed
Type
Report
labels 2024-04-04 18:43:24 +02:00
Blender Bot added
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Resolved
and removed
Status
Confirmed
labels 2024-04-05 14:19:13 +02:00
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Reference: blender/blender#117338
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