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[Luma3d]

What does Ray termination do and how does it affect animation times?

[vladimir.nedev]

What does Ray termination do and how does it affect animation times?

It randomly terminates rays based on how much we expect them to contribute to the final image.
This speeds up the rendering (FPS), which should translate to faster animation rendering,
unless your frames render very fast and save very slow due to large resolution and many render elements.

However, "how much a ray contributes" is unknown, only a guess, so based on the scene,
the ray termination may result in a significant increase in noise, that's why it's OFF by default.

Greetings,
Vladimir Nedev