Many pixels are not rendered in 4.00.0.137 Tweet

[Uhlhorn]

Hi there,

I found an issue in Octane 4.00.0.137 for Modo. Many 2 by 2 pixels are not rendered in Octane:

Many 2 by 2 pixels are not rendered in Octane.

Here is the full size rendering with many holes:

Original rendering with holes.

[face_off]

Hi - can you try with the latest release please (4.01.1.138).

Paul

[Hesekiel2517]

Did you use adaptive Sampling? Try to increase the "min. sampling" to avoid errors in the noise estimation in very noisy scenes.

[Uhlhorn]

Did you use adaptive Sampling?

Yes. And without adaptive sampling the issue does not appear, I just figured out.

Try to increase the "min. sampling" to avoid errors in the noise estimation in very noisy scenes.

It does not solve all, it makes it better.
So I made some tests:

Minimum Samples: 512 Pixel Grouping: none

Minimum Samples: 512 Pixel Grouping: 2 x 2

Minimum Samples: 512 Pixel Grouping: 4 x 4

Minimum Samples: 2048 Pixel Grouping: none

Minimum Samples: 2048 Pixel Grouping: 2 x 2

Minimum Samples: 2048 Pixel Grouping: 4 x 4

No Adaptive Sampling