Reply To: How to transfert sampled uv with points to voxel (smoke) in geometrie node ?

Hi Martin,

Yes, that’s the method I usually use to transfer UVs from a surface to points. But my current question is : how can I pass that data into a volumetric representation ?

Once I convert the points to a volume using “Point to Volume”, I lose all the UV data. What I’m trying to achieve is a way to store a vector (like a UV coordinate) in each voxel cell, similar to what Houdini allows, so that I can color the smoke based on image data.

I’m using Embergen for smoke simulation and planning to export particles as well. These particles originate from the ground and are triggered by a wheel interaction, simulating the smoke emission. Since these points already carry the UVs of the ground and move according to the smoke sim, I’m wondering : is there a way to use this to color the smoke based on the image / UVs ? Or is that kind of data just lost in the volume step ?

Attached are a few screenshots from my current scene, showing the UVs remapped to the points.

Thanks in advance for your help!

Cheers,

Matt