Maniphest T97494

Transparent material overlapping black in Cycles
Closed, Duplicate
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Assigned To
None
Authored By
Robert Zhang (zhruith)
Apr 21 2022, 4:55 AM
Tags
  • BF Blender
Subscribers
Pratik Borhade (PratikPB2123)
Robert Zhang (zhruith)

Description

When two Object have Transparent material, overlapping position will display black in Cycles.
Eevee is fine.

overlapping_bug.blend829 KBDownload

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65

Blender Version
Broken: version: 3.2.0 Alpha, branch: master, commit date: 2022-04-20 11:42, hash: rB0385e2f1f90f
Worked: (newest version of Blender that worked as expected)

Related Objects

Event Timeline

Robert Zhang (zhruith) created this task.Apr 21 2022, 4:55 AM
Pratik Borhade (PratikPB2123) added a subscriber: Pratik Borhade (PratikPB2123).Apr 21 2022, 5:21 AM

Thanks for the report.
This is a same issue as reported in T96475

In T96475#1323543, @brecht wrote:

This is not considered a bug currently, it's a documented trade-off of the new method.

Also mentioned in wiki page: https://wiki.blender.org/wiki/Reference/Release_Notes/3.1/Cycles#Ray_Tracing_Precision

Pratik Borhade (PratikPB2123) closed this task as a duplicate of T96475: Overlapping geometry shows black faces on Cycles Blender 3.1 (Ray Tracing Precision).Apr 21 2022, 5:22 AM