I am new to Houdini and I'm building a tool that spawn geometry on painted areas.
To do that, I first used the Paint Attribute of Houdini to create a mask. But when I exported my HDA in Unreal, I realized that it was impossible to use the paint attribute node (in Unreal).
So I decided to use the Mesh paint mode of Unreal to input a vertex color in Houdini and create my spawn mask with the Vertex Color.
The houdini logic works fine but I have two issues with my HDA in Unreal.
- First: When I input a geometry in my HDA, it run the graph instantely and it spawn shapes on my geo before I had time to paint my vertex colors.
- Second: I simply can't use the Mesh Paint mode of Unreal engine on the HDA in my scene, the brush do not appear.
Does anyone knows about a solution ?