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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.




Found in


Issue ID




[PLM] 'Firefly' artifacts after baking the project with high lightmap resolution and padding

Progressive Lightmapper


Steps to repro:
1. Open the attached project;
2. In the Lighting window press 'Generate Lighting' button;
3. Wait for the baking to finish.

Actual result:
'Firefly' artifact are visible on the floor after baking the project with high lightmap resolution and padding.

Expected result:
No artifacts are visible on the floor.

- Reproducible in 2020.1.0a18, 2019.3.0f4;
- Could not test in 2019.2.17f1, since all the geometry is black;
- Not reproducible with lightmap resolution=1 and lightmap padding=1;
- Reproducible when baking with both CPU and GPU lightmappers;
- Workaround is add pushoff to the embedded mesh on the ground. There is a screenshot of the setting in the thread.

  1. Resolution Note (2020.1.X):

    This is a larger task of refactoring the compositing step of the directionality output of lightmapping. This will be handled as part of our regular sprints.

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