Attach Script when using certain shader

Unity Engine
1

I have this custom shader . is there anyway to auto add a script when someone selects this shader for a material on a game object ?

2

You could probably abuse a custom material editor to do this. Try looking at the Standard shader or the recently released (on the forums) Standard Particle shader.

3

You could, but removing the script when another shader is selected might be tricky.

I would just create an editor extension that updates the entire scene.

4

Ahh yeah good point … thanks

5

I am using as custom material editor but could find no way to add like a script to the object the material is on

6

The standard particle shader’s GUI.cs does this:

                ParticleSystemRenderer[] renderers = UnityEngine.Object.FindObjectsOfType(typeof(ParticleSystemRenderer)) as ParticleSystemRenderer[];
                foreach (ParticleSystemRenderer renderer in renderers)
                {
                    if (renderer.sharedMaterial == material)
                        renderer.SetActiveVertexStreams(streams);
                }

This is called only when you press a button since it’d be rather expensive. You would have to do something similar, get a list of all Renderers and iterate over the shared material list.