OTOY Forums

Hi,
How opacity map can cast shadows ?
One map + one opacity map doesn't cast shadows on ground !
Thanks in advance
Franck

Can you post a sample image/scene with this issue? The shadows should be rendered taking the opacity maps into account.

Thanks,
-Juanjo

Franck, you need to have Alpha Shadows enabled in RenderTarget.

Thanks, but,yes, Alpha shadows enabled !
Attached render with problem.

Another problem ! If i use Octane projection node, the products are white. I f i use UVMAP node, Products are goods (no cast shadows).

Can you send me the scene to test it here?

Thanks,
-Juanjo

The shadows problem is related to the shelf material. It is too specular, with the diffusion parameter near to 0. Without diffuse reflection, you can't have direct light shadows.

-Juanjo

The projection node seems to work fine here, but you need to link it to both texture nodes.

-Juanjo

Ok ! Thanks !
I'm ok for UV map, but i don't understand diffuse and specular. Can you show me your map setting to have cast shadow ?
Thanks

I'm trying with your setting, but no cast shadow.
I've seen you have a black background. Here is white !
Thanks