Hello!

Is it possible to directly use Vertex Color information that was applied with Mesh Paint in Unreal in an HDA?
The basic setup would be a Static Mesh instance, painted via Mesh Paint in a level, used as a World Input.

So far I have not been able to get a Cd/color attribute to even show up on that Input when painting directly in Unreal.

I have seen older Forum Posts where it is mentioned that this is a working setup, but no explanation is provided unfortunately

https://www.sidefx.com/forum/topic/90663/ [www.sidefx.com]

for reference, there is also this video that shows the type of Input I would want:
https://www.linkedin.com/posts/alex-1vanov_houdini-unrealengine-techart-activity-7391163233325256704-ulOZ/ [www.linkedin.com]

Any pointers would be greatly appreciated!

Unreal 5.6, Houdini 21.0.671

Hey, this actually tripped me up not too long ago as well.

Nothing has changed on the Houdini Engine side. Unreal made an update recently that requires you to send the vertex paint to your mesh. In the Vertex Color panel, where you have your 'Paint' and 'Fill' options, you need to hit the 'ToMesh' button. This assigns your painting to the actual mesh in the level, then Houdini Engine is able to send that Cd data over.

Let me know if that doesn't do the trick and we trouble shoot some more.