Cycles renders only two frames of animation #89040

New Issue

Nikita · 2021-06-10T23:09:59+02:00

Nikita commented

2021-06-10 23:09:59 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59

Blender Version
Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: 84da05a8b8
Worked:

Short description of error
Cycles render only two frames of animation when all of these functions are enabled: Time remapping (with ratio more than 1), Motion Blur and Persistent Data.

Exact steps for others to reproduce the error
To recreate this problem you need to create animation, set time remapping with ratio more than 1 (for example 60/24), enable Motion blur and enable Persistent data, as you can see in attached file.
untitled.blend

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59 **Blender Version** Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: `84da05a8b8` Worked: **Short description of error** Cycles render only two frames of animation when all of these functions are enabled: Time remapping (with ratio more than 1), Motion Blur and Persistent Data. **Exact steps for others to reproduce the error** To recreate this problem you need to create animation, set time remapping with ratio more than 1 (for example 60/24), enable Motion blur and enable Persistent data, as you can see in attached file. [untitled.blend](https://archive.blender.org/developer/F10166288/untitled.blend)

Nikita commented

2021-06-10 23:09:59 +02:00

Added subscriber: @Kozn

Leon Zandman commented

2021-06-11 22:07:43 +02:00

Added subscriber: @Zandman

Leon Zandman commented

2021-06-11 22:07:43 +02:00

Confirmed with attached Blend file on macOS Big Sur on MacBook M1. When I manually created a new animation based on the instructions the rendering stopped at frame 5. So the position where rendering stops seems to vary.

Maybe related to #89053, as that issue also claims to be Motion Blur + Persistent Data related.

Confirmed with attached Blend file on macOS Big Sur on MacBook M1. When I manually created a new animation based on the instructions the rendering stopped at frame 5. So the position where rendering stops seems to vary. Maybe related to #89053, as that issue also claims to be Motion Blur + Persistent Data related.

Alaska commented

2021-06-12 04:12:59 +02:00

Added subscriber: @Alaska

Alaska commented

2021-06-12 04:12:59 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Alaska commented

2021-06-12 04:12:59 +02:00

I can confirm this issue with Blender 2.93 release and Blender 3.0 on Linux (see information below).

I decided to bisect the issue and to see if any more information could be found out. The "culprit" commit is the introduction of Persistent Data. 50782df425

I also ran Blender with the commend --debug-all and I couldn't find anything useful from it.

System Information
Operating system: Linux-5.10.0-7-amd64-x86_64-with-glibc2.31 64 Bits

Blender Version: 3.0.0 Alpha, branch: master, commit date: 2021-06-11 21:39, hash: d75e45d10c

I can confirm this issue with Blender 2.93 release and Blender 3.0 on Linux (see information below). I decided to bisect the issue and to see if any more information could be found out. The "culprit" commit is the introduction of `Persistent Data`. 50782df425 I also ran Blender with the commend `--debug-all` and I couldn't find anything useful from it. **System Information** Operating system: Linux-5.10.0-7-amd64-x86_64-with-glibc2.31 64 Bits **Blender Version:** 3.0.0 Alpha, branch: master, commit date: 2021-06-11 21:39, hash: `d75e45d10c`

Leon Zandman commented

2021-06-12 12:33:11 +02:00

There seems to have been some prior problems with Motion Blur and Persistent Data: #87283, though that is marked as being fixed.