Cycles: Fix some direct lighting leaking into indirect-only bakes #108955

Lukas Stockner · 2023-06-14T03:18:36+02:00

Lukas Stockner commented

2023-06-14 03:18:36 +02:00

When baking only indirect lighting, light sampling is skipped at the
first bounce. However, light evaluation is still done, so depending
on how the MIS weights end up more or less of the direct lighting
still ends up in the bake.

This is most noticeable with background lighting, but can also be
reproduced with e.g. point lights with a large radius.

When baking only indirect lighting, light sampling is skipped at the first bounce. However, light evaluation is still done, so depending on how the MIS weights end up more or less of the direct lighting still ends up in the bake. This is most noticeable with background lighting, but can also be reproduced with e.g. point lights with a large radius.

Lukas Stockner added 1 commit 2023-06-14 03:18:45 +02:00

536b68d332 Cycles: Fix some direct lighting leaking into indirect-only bakes

When baking only indirect lighting, light sampling is skipped at the
first bounce. However, light evaluation is still done, so depending
on how the MIS weights end up more or less of the direct lighting
still ends up in the bake.

This is most noticeable with background lighting, but can also be
reproduced with e.g. point lights with a large radius.

Lukas Stockner added this to the Render & Cycles project 2023-06-14 03:18:53 +02:00

Brecht Van Lommel was assigned by Lukas Stockner

2023-06-14 03:18:59 +02:00

Lukas Stockner requested review from Brecht Van Lommel 2023-06-14 03:19:05 +02:00

Brecht Van Lommel was unassigned by Lukas Stockner

2023-06-14 03:19:09 +02:00

Brecht Van Lommel approved these changes 2023-06-14 12:17:57 +02:00

Brecht Van Lommel approved these changes 2023-06-15 15:19:16 +02:00

Lukas Stockner merged commit a783fe8198 into main

2023-06-16 03:03:31 +02:00

Lukas Stockner deleted branch fix-indirect-baking-mis

2023-06-16 03:03:32 +02:00