OctaneRender™ 2021.1 RC 1

[funk]

BUG: Weird lines in example with RTX on using 3090

I found another example that renders some weird lines on a 3090 with RTX on. RTX off looks ok.

The camera is in the exact same position as the floor, so its causing problems, but RTX on should look the same as RTX off.

[wallace]

BUG: Weird lines in example with RTX on using 3090

I found another example that renders some weird lines on a 3090 with RTX on. RTX off looks ok.

The camera is in the exact same position as the floor, so its causing problems, but RTX on should look the same as RTX off.

2021_3090_rtx_on_lines_bug.png

I can confirm the first two bugs are fixed and are from the same issue I fixed last week.

This one is not though and will require some investigation.

[funk]

Thanks wallace

[Hesekiel2517]

I get some bad results using RTX in conjunction with nesteddialectics and CAD Data:

RTX:

RTX Off

Octane_Error_2.JPG (21.08 KiB) Viewed 2704 times

I can't share the scene unfortunately and can't reproduce it in another scene.

[wallace]

I get some bad results using RTX in conjunction with nesteddialectics and CAD Data:

RTX:

Octane_Error.JPG

RTX Off

Octane_Error_2.JPG

I can't share the scene unfortunately and can't reproduce it in another scene.

I have fixed several issues related to this, pretty confident that it would solve the problem you are seeing in your scene as well. The fix will be in the next release.

[vijay]

Vijay mentioned a fix for this issue
viewtopic.php?p=402303#p402303

I think it may be part of the "Fixed incorrect denoiser output in scenes with SSS materials.", but I'm still seeing a color difference in the denoised output.

It's not as drastic now, but the denoised output is a bit more blue.

Beauty:

denoiser_volume_sss_beauty.jpg

Denoised:

denoiser_volume_sss_denoised.jpg

Sorry for the late reply. Actually, I did reply before. But just noticed that for some reason my reply was not added to the forum. This issue here is a limitation of our denoiser. The denoiser composition is happening on XYZ/RGB colour spaces and if we do the same composition in spectrum space we get a different result(main pass). The reason this started happening in 2021 is because of our new colour pipeline(which doesn't limit spectrum). To reduce the difference in this particular scene, you can decrease the gain and brightness settings on the geometry's medium textures or turn on the use old color pipeline in render target settings. You may still see a very shuttle difference due to the above-explained limitation, which we hope to sort out in near future.

Thanks,
Vijay

[davidyannick_1]

same issue for me with RTX on with my 3090, will it be fix soon ? thx

[abstrax]

same issue for me with RTX on with my 3090, will it be fix soon ? thx

2021.1 RC2 is currently building. It should fix the reported RTX issues. When it has been released, please let us know if the issue has not been resolved - ideally with an example scene. Thank you.