Altering color / alpha on a Game Object

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I've brought a model in from 3dmax. It comes in as a main object that has a child object that in turn has 8 child objects. The 8 child objects each have their own Mesh Renderer and Shader. Neither of the parent objects have Meshes.

If I want to apply 50% alpha to the entire model do I need to modify the material.color.a for each item separately? Or is there some way to just apply changes to the parent object?

1 Answer

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If they all use the same material, then you can change renderer.sharedMaterial on one of them. Otherwise you have to change each one.