Blender 4 - Geometry nodes - sample texture to populate points on surface

[phil123456]

Hi

trying to sample a texture, as I paint the applied diffuse texture, points are indeed placed on the main mesh but they are not placed where I painted.

I also try to filter by color. I expect the points to be populated only where I paint.
Yeah I know I can use weight painting but I need a more flexible workflow

Thanks for your help

[zeroskilz]

You need to be using the same texture space… i.e. plug in the UVMap attribute into the Image’s vector input. (it defaults to Position)

Good luck.

[phil123456]

yep, first thing I been looking for, like unreal shader stuffs. but there is no such node in blender…can you be more specific ?

note that I use Blender 4

[zeroskilz]

You use the Named Attribute – UVMaps, Vertex Colors, Vertex groups, etc. - these are all Attributes:

Good luck.