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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.
Postponed
Votes
0
Found in
2019.4.8f1
Issue ID
1270698
Regression
No
[GPU PLM] GPU lightmapping does not work on the new iMac 2020
Steps to reproduce:
1. Open the Tests scene on the new iMac 2020 with Radeon Pro 5700 XT 16 GB
2. Lightmap the scene using GPU lightmapper
3. Entire machine will hang and be unrecoverable (kernel panic).
The users config:
iMac (Retina 5K, 27-inch, 2020)
3.8 GHz 8-Core Intel Core i7
24 GB 2400 MHz DDR4
AMD Radeon Pro 5700 XT 16 GB
MacOS 10.15.6
I've been trying to get GPU light mapping working on the new iMac, but it always hangs the entire machine, necessitating a hard reset. Just a simple scene with a cube and a plane. So far I've tried 2019.3.14, 2019.4.8, 2020.1.2 and even 2020.2.0a19. The editor log shows many shader compile warnings as attached. Anyone had success with the new iMacs?
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Resolution Note (2021.1.X):
This work is waiting for a driver/OS fix from Apple.