Author Topic: OSL, CoronaAO, mix different UVW channels  (Read 1440 times)

2022-01-16, 18:38:27

karnak

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Hi,
Corona version is 7 hotfix 1 and 3dsmax2021.

Text and images to reproduce:

1)   OSL: Checker with UVW set to Map Channel 1.


2)   OSL: Checker with UVW set to World.


3)   OSL: Noise with UVW set to World.


4)   Mix using a CoronaMix. Ok.


5)   Mix using a OSL: Mix (color). Ok.


6)   CoronaAO set to Inside.


7)   Using the OSL: Noise as AO distance. Ok.


8)   Mix using a CoronaMix. Ok.


9)   Mix using a OSL: Mix (color). Issue.


I think there is an issue with UVW coordinates.
Only CoronaMix seems to be able to correctly read UVW coordinates passing through CoronaAO.
« Last Edit: 2022-01-19, 12:09:32 by karnak »
Corona Academy (May 2017)

2023-02-20, 16:26:37
Reply #1

Avi

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Hi,

I was able to reproduce the issue you described, but it doesn't appear to be an error specific to Corona. I was able to replicate the same behavior with V-Ray as well. It seems that this is an issue with 3ds Max itself. Please let me know if I have misunderstood your problem.
Arpit Pandey | chaos-corona.com
3D Support Specialist - Corona | contact us

2023-02-21, 20:55:37
Reply #2

karnak

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Hi, thank you for taking the time to test it.
I only tried it with Corona, so I don't know if it's a 3dsMax issue.
Corona Academy (May 2017)

2023-02-22, 08:33:59
Reply #3

Avi

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Sure, I understand.

If this issue is still bothering you, feel free to test it out on weekends and try using different rendering engines as well. If you think this might be a problem with Corona, please let me know about your testing, and maybe we can look into it together to find a solution.

In the meantime, happy rendering! :)
Arpit Pandey | chaos-corona.com
3D Support Specialist - Corona | contact us