Feature Request Tint by object or by element - hue shift possible?

Is it possible to have a "tint by object" or "tint by element" node? For example if I apply the same material to 10 objects, could I randomly tint the colours of those objects by for example shifting the hue a bit for each object? For example if I have 10 cars and I want to tint the body paint of each car, but have it as 1 material?

Similarly, if I have 1 object, made up of various elements. Like a mesh bush for example with leaves. Could I tint each leave a slightly different green, but have that main leaf material as a single material? In 3ds max this is fairly easy and simple by using things like multitexture or vraymultisubtex

 

Yes you can. Just modify shader properties after GameObject was instantiated.

As an example, here I use only two base meshes. box as branches and sphere as leafs, flowers etc.Then instantiated duplicates. And using Shader Graph, apply colors.

In case of GameObject, you want access property, using

Code (CSharp):

1. MeshRenderer mr = GO.GetComponent <MeshRenderer> () ;
2.             mr.sharedMaterial.SetColor ( "myShaderPropertyName", Color.cyan ) ;
3. // Or
4.             mr.sharedMaterial.SetColor ( shaderID, Color.cyan ) ;

 

Its not for an app but mainly for offline rendering with Cinemachine and Timeline, will this technique still work?

Isnt there a way directly in shader graph without using scripts at runtime?

 

I am not sure, what you mean exactly, by offline rendering? You still need start the application anyway. And you will need game objects for rendering, so I expect, it will work. Unless I misunderstand your concept.

You can create new material for each new object. Otherwise, I am not aware on any other method, with using same material and multiple shader variations.

You could try look around scriptable objects, but I am not sure, if this will solve the problem.

If anything fails, what you could do, is to use GO with attached script as a component, with desired shader properties. Script will set material shader properties at GO start. Not the nicest solution, but could do the job.

 

Maybe you can use Object Position(not position in object space) as seed to generate per object random hue shift.
Since your object may have different position and static.
https://docs.unity3d.com/Packages/com.unity.shadergraph@6.9/manual/Object-Node.html