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Duplicate

Duplicate in 2019.3.X, 2019.4.X, 2020.1.X

Votes

0

Found in

2020.1.0a9

Issue ID

1236310

Regression

No

[PLM] First small lightmap blocks following bigger lightmaps from being scheduled

Progressive Lightmapper

-

When progressive updates is enabled, if there is enough memory for a first lightmap (a small one) but not enough memory for one of the other ones (bigger) baking is stuck in an endless loop.
Nothing gets printed in the console and nothing happens.

This bug is reproducible with both CPU and GPU Lightmapper.
On the GPU lightmapper when encountering this bug we don't even fallback to CPULM.

Repro:

You can repro the bug using the archvizpro scene using a 32GB CPU Ram machine, with 4k lightmaps and antialiasing set to at least 4.

The first 512x512 lightmap will get rendered and converged and then you will be stuck in an infinite loop that never starts the 3 other lightmaps which are 4k lightmaps

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