Shadow Catcher still shows withing Volume scatter #120739

New Issue

Shady Hamza · 2024-04-17T12:49:30+02:00

Shady Hamza commented

2024-04-17 12:49:30 +02:00

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 552.22

Blender Version
Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: e1743a0317bc
Worked: (newest version of Blender that worked as expected)

Short description of error
Plane Still Shows within the Volume when its set to shadow catching

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 552.22 **Blender Version** Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: `e1743a0317bc` Worked: (newest version of Blender that worked as expected) **Short description of error** Plane Still Shows within the Volume when its set to shadow catching **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]

Test.blend

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Screenshot 2024-04-17 124730.png

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Shady Hamza added the

labels 2024-04-17 12:49:31 +02:00

Alaska commented

2024-04-17 14:53:51 +02:00

I can confirm this issue. Just to make it more obvious, here are some clearer images of the issue:

When the simple shadow catcher is used (always used in the viewport, can be toggled in the final render), and transparent film is off, and the shadow catcher is behind a volumetric object, the shadow catcher becomes visible. This is visible in this image as you can see the edge of the shadow catcher compared against the background.

But when transparent film is enabled, things work just fine. Here's a image with transparent film enabled, then alpha over the background colour:

I can confirm this issue. Just to make it more obvious, here are some clearer images of the issue: When the simple shadow catcher is used (always used in the viewport, can be toggled in the final render), and transparent film is off, and the shadow catcher is behind a volumetric object, the shadow catcher becomes visible. This is visible in this image as you can see the edge of the shadow catcher compared against the background. ![Visible Shadow Catcher.jpg](/attachments/28e3c528-31e0-4729-bb79-081e475e9efd) But when transparent film is enabled, things work just fine. Here's a image with transparent film enabled, then alpha over the background colour: ![Transparent shadow catcher working.jpg](/attachments/5e3c8566-89ce-42fd-83c1-aeed281d73bd)

Visible Shadow Catcher.jpg

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Transparent shadow catcher working.jpg

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Alaska added

and removed