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Fixed in Unity 2018.2

Votes

0

Found in

Issue ID

908068

Regression

No

[PLM] Progressive Lightmapper ignores some faces of quad meshes

Global Illumination

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Priority: 3Not yet prioritized for a release

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Severity: 2Core functionality majorly impacted

When importing a quad mesh with "Keep quads" enabled (in mesh importer), some faces are seemingly ignored by the progressive pathtracer. It appears rays just go "through" the faces without an intersection.

Repro steps:
1) Open attached project.
2) Toggle directional light mode from Realtime to Baked.
3) Observe artefacts on mesh and in the shadow on the ground plane.

The included test mesh works fine if you switch to Enlighten or dynamic lighting.

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