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Maniphest T79259

OptiX render with fisheye camera is different to CUDA
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Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67

Blender Version
Broken: version: 2.83.3, branch: master, commit date: 2020-07-22 06:01, hash: rB353e5bd7493e

Short description of error
Fisheye render is not working as expected with OptiX as a render device.
The alpha channel of the border is missing. With this simple blend-file the outcome is not bad but in a more complex scenario it looks really weird. (mixed colors and artifacts)
Is there a simple way to recreate the output from CUDA with Optix, e.g. with nodes?

Exact steps for others to reproduce the error
Activate OptiX in Edit > Preferences > System

OptiX output:

CUDA output:

simple.blend672 KBDownload

Thank you very much!

Revisions and Commits

rC Cycles
rC47e3178d177d Fix T79259: OptiX render with fisheye camera is different to CUDA
rB Blender
rB9ff7820f62a8 Fix T79259: OptiX render with fisheye camera is different to CUDA

Event Timeline

Lukas Wohlwend (Wubba) created this task.Jul 25 2020, 1:20 PM
Germano Cavalcante (mano-wii) added a project: Render & Cycles.Jul 27 2020, 9:53 PM
Patrick Mours (pmoursnv) closed this task as Resolved.Jul 28 2020, 3:47 PM
Patrick Mours (pmoursnv) claimed this task.
Patrick Mours (pmoursnv) added a commit: rB9ff7820f62a8: Fix T79259: OptiX render with fisheye camera is different to CUDA.
Lukas Wohlwend (Wubba) changed the task status from Resolved to Archived.EditedJul 29 2020, 10:51 AM

I made the changes but still found the same bug. Here are images showing the difference better.

CUDA output:

OptiX output:

Here is the test-file:

simple_2.blend815 KBDownload

Thank you for the help!

Patrick Mours (pmoursnv) added a comment.EditedJul 29 2020, 12:33 PM

Tested your new scene and cannot reproduce. Make sure you recompiled the PTX after applying the change or simply download the latest alpha/beta build from https://builder.blender.org/download/ which already incorporates it.

Brecht Van Lommel (brecht) changed the task status from Archived to Resolved by committing rC47e3178d177d: Fix T79259: OptiX render with fisheye camera is different to CUDA.Sep 1 2020, 1:55 AM
Brecht Van Lommel (brecht) added a commit: rC47e3178d177d: Fix T79259: OptiX render with fisheye camera is different to CUDA.