Community
Arnold for Cinema 4D Forum
Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Procedurals and Volume Shader

4 REPLIES 4
SOLVED
Reply
Message 1 of 5
mika.ihatsu
409 Views, 4 Replies

Procedurals and Volume Shader

Hi,

I imported foam point cloud (8 million particle) from Realflow to C4D using Realflow particle import plugin. This brings particles as TP in C4D ad now I can render them using Arnold TP group. If I add Arnold Mesh Volume tag and Volume Shader, the result is pretty nice foam. However, importing so many points makes the computer unusable. I tried to export .ass file from Realflow and use Arnold Procedurals, this is insane fast but now Mesh Volume tag and Volume Shader doesn't work anymore. This is not possible?

Labels (2)
4 REPLIES 4
Message 2 of 5
Stephen.Blair
in reply to: mika.ihatsu

Arnold Procedural is not a mesh, and it doesn't have Step size or Volume padding parameters.

You'll have to set those parameters on whatever objects are in the ASS file. Either before you export the ASS file, or with an operator later.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 5
mika.ihatsu
in reply to: mika.ihatsu

Thank you for the answer

I tried this operator

radius *=0.1 (this works because i'm able to change the radius)

step_size *=1

volume_padding *=0

What else I need? It still don't render when i add standar_volume

Message 4 of 5

Use these parameter overrides in the Arnold Procedural:

3033-polymesh-volume-overrides.png

It will set the step_size and volume_padding of all polymeshes and also overrides the shader with a standard_volume. (The standard_volume is a material from the scene.) Set the values to your needs.

Message 5 of 5
mika.ihatsu
in reply to: mika.ihatsu

Thx, i got it work! I had to add this mode= 'sphere' to operator as well

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report