Upgrade Selected Material to URP Material via Script

Dear devs,

I have a lot of materials that I want to convert to urp material and I would like to use scripting instead of clicking the editor menu. Is there a possibility to do so? I also tried the option Upgrade Project Material to URP Materials, but my material still remains pink.

Best,

Ribin

 

Yes, you can.

knowledge
There are two things to remember:
First, a Material is a Container that stores the values of the shader's variables and
Second, Unity uses the variable's name when serializing it.

Based on the above two facts, passing a value from one Material to another means assigning the value stored with specific variable name to a specific variable name in another Material.


Suppose you want to assign the MainTexture value stored in Unity's default Material to a Material using your custom shader.

Solution
Assumptions
Unity made signiture that store main texture as '_MainTex'.
Your shader stored main texture as '_MyMainTex'.

Pseudo code
Get texture type value as 'TextureData' from Unity's material named with '_MainTex'
Assign 'TextureData' to values named '_MyMainTex' in your target Material.

+ c# example

Code (CSharp):

1.         Material from; // Unity default
2.         Material to; // your material
3.  
4.         Texture textureData = from.GetTexture("_MainTex");
5.         to.SetTexture("_MyMainTex", textureData);

Why your material remains pink?
I guess your Material remains Pink because Unity's Shader and your Shader's Texture variable have different names. This answer may be inaccurate as I don't know your working environment