Vector3 to Vector2 UV coordinates

I am attempting to get access to the UV coordinates of a (skinned) mesh tbased on where it was raycasted so that I made edit the texture using the Vector2 UV coords. I am aware of "RaycastHit.TextureCoord" and it works fantastic- however it is limited to only work IF the mesh has a mesh collider attached, and considering I am raycasting onto a skinned mesh, having a mesh collider attached is impossible.

How could I go about taking the Vector3 point in space and translating that to a Vector2 UV point in texture space?


Thanks for any insights!

 

I did this before but used a method similar to the second answer here (http://answers.unity3d.com/questions/39490/collider-on-skinned-mesh.html).

You use a mesh collider but only bake it when you do a raycast - if it's active all the time it's too slow.

 

Hey, I coincidentally implemented this approach just recently and got great results! Unfortunately there's still quite a bit of overhead when the bake functions called- and even more so the higher poly you go

 

I have a system that doesn't get slower with high poly meshes because it's shader based: Super Raycast.

You can get the uv like:

Code (CSharp):

1. RaycastHitRenderer hitInfo;
2. if (SuperRaycast.PhysicsRaycast(ray, out hitInfo))
3. {
4.     // UV results
5.     Debug.Log(hitInfo.uv);
6. }