Curvature node => Opacity=>shadows wrong

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WoutTgh
Licensed Customer
Posts: 182
Joined: Sat Jul 27, 2019 8:39 pm
Contact:

Hi,
plugging a curvature node into the opacity channel renders the object shadows as full opaque or at least the shadows are off. I tried the specular material, which has the fake shadows option and that seems to render correctly.

All the best,
Wout
WoutTgh
Licensed Customer
Posts: 182
Joined: Sat Jul 27, 2019 8:39 pm
Contact:

Played around with it some more, the fake shadow option does not render correctly either.
john_otoy
OctaneRender Team
Posts: 249
Joined: Tue Aug 10, 2021 9:38 pm

Hi WoutTgh,

This is a limitation in the Octane core. I asked one of our devs about this and he said it would require a lot more memory if we calculated dirt/curvature during shadow tracing.
WoutTgh
Licensed Customer
Posts: 182
Joined: Sat Jul 27, 2019 8:39 pm
Contact:

Hi John,

thanks for checking! Is the same limitation responsible for it not working on instances ?
john_otoy
OctaneRender Team
Posts: 249
Joined: Tue Aug 10, 2021 9:38 pm

If you're referring to the shadows generated by instances with curvature in opacity, then yes, the same limitation applies.
WoutTgh
Licensed Customer
Posts: 182
Joined: Sat Jul 27, 2019 8:39 pm
Contact:

No I meant the curvature node in general not working on instances.
john_otoy
OctaneRender Team
Posts: 249
Joined: Tue Aug 10, 2021 9:38 pm

That should work. Here is a test.
curvature_instances.jpg
WoutTgh
Licensed Customer
Posts: 182
Joined: Sat Jul 27, 2019 8:39 pm
Contact:

ooh okedoke ! maybe something in my setup.. or Houdini... thanks !
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