Removing a matcap texture

Questions
1

I’m trying to remove a matcap texture from a MeshMatcapMaterial. I dispose of the previous matcap texture. But since this is a event and happens asynchonously I can’t set matcap to null and set the needsUpdate flag for the material. I used a work around of a timeout. But that feels like a terrible hack. Is there an after dispose event I can add a callback to?

When the camera moves the matcap texture doesn’t track with the camera. I notice a texture has a matrix, is it feasible to use this to track the camera movement.

2

The removal of the GPU resources actually happens when you call dispose(). The respective event listeners (in this case onTextureDispose()) are directly executed. So the following pattern should work:

material.matcap.dispose();
material.matcap = null;
material.needsUpdate = true;
1 Like
3

Hi Michael,
Thanks for your reply, you’re always so quick to respond.
I tried what you suggested at first and it retained the previous matcap. I can share a link if it helps.
Cheers Nik

4

That would be great.

5

Bizarrely it’s working now! Any thoughts about tracking the texture with camera movement. It ignores the matrix, presumably because mapping isn’t UVMapping.

6

Texture.matrix has nothing to do with the camera. It represents the uv transformation matrix which is computed from the offset, center, repeat and rotation texture properties.

8

Yes, I understand that. I was wondering if perhaps multiplying the matrix by mat.setFromMatrix4(camera.matrixWorld) or something like that might make the matcap track the camera.