Curvature node => Opacity=>shadows wrong Tweet

[WoutTgh]

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]

Played around with it some more, the fake shadow option does not render correctly either.

[john_otoy]

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]

Hi John,

thanks for checking! Is the same limitation responsible for it not working on instances ?

[john_otoy]

If you're referring to the shadows generated by instances with curvature in opacity, then yes, the same limitation applies.

[WoutTgh]

No I meant the curvature node in general not working on instances.

[john_otoy]

That should work. Here is a test.

[WoutTgh]

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