I'm currently trying to achieve an effect that's similar to paint strokes on a source mesh. Basically I'd instance a basic plane across some geometry, and then have the plane (with an image of a brushstroke as an alpha) take on the color of the source object to appear like brushstrokes. If I had to think of an example, this would probably be a good one.
I've gotten to the point where my instances take on the material and UV's of the source sphere however this reveals them as basic rectangular planes, and because the UV's do not match the original instanced plane I cannot use that alpha anymore. Is there a way for me to take the Instanced Plane's UV map before realizing this geoNode setup, and output it into the Source Sphere's Texture map as an Alpha? I would like to try and preserve the Plane's brushy alpha map but the color of the Sphere is the question.
Below is the current result without an Alpha map, but with the sphere's texture applied.
And here is the result with the Instanced Plane's Material and Alpha Map
Here is my current Shader for the Sphere's Material for reference, and also the Geometry Node Setup for the Sphere.
I'll also attach the blender file that I'm using at the moment in case it's needed!