Displacement tearing and projection node issue

[TomiKaraman]

I have a problem with displacement tearing polygons. I found one post from Beppe where he is saying to turn of Phong Tag. I did that but it does not help.
I have as well a problem that displacement texture is not responding to texture projection node and it is still using object UVW. This looks like bug to me. I have attached the scene.
I am using the latest version of Octane.

[aoktar]

UV coordinates has not any continuty. And Octane Projections will not work in displacement. You have to provide good uvmapping from texture tag.

[TomiKaraman]

Thanks Aoktar for the reply.

Is there any reason why projection node is not working with Displacement ? How can I then alight Displacement coordinates with other channels if I am using projection node for diffuse / refl / roughness ? The material I am using is PBR material so all the maps are generated from the same photo and they need to be perfectly aligned.

Thanks!!

[aoktar]

Thanks Aoktar for the reply.

Is there any reason why projection node is not working with Displacement ? How can I then alight Displacement coordinates with other channels if I am using projection node for diffuse / refl / roughness ? The material I am using is PBR material so all the maps are generated from the same photo and they need to be perfectly aligned.

Thanks!!

It's a limitation on renderer. But i cannot know the technical details.

[bepeg4d]

Hi TomiKaraman,
as already said by Aoktar, this kind of uv mapping cannot work with Octane displacement, you cannot have overlapping uvs.
The solution is to leave the displacement in Mesh UV Projection mode, and change the c4d projecion to Flat or Cubic:

disp issue_B.c4d.zip

(667.57 KiB) Downloaded 175 times

Happy rendering,
ciao beppe

[TomiKaraman]

Thanks Aoktar and Beppe for the explanation! If it is an Octane limitation then I will just use Beppe's method.