Method didn't modified the ShaderInterface but wasn't usable when trying to debug a const reference to the ShaderInterface. This PR just adds the const to the method. Pull Request: https://projects.blender.org/blender/blender/pulls/108190
Method didn't modified the ShaderInterface but wasn't usable when trying to debug a const reference to the ShaderInterface. This PR just adds the const to the method. Pull Request: https://projects.blender.org/blender/blender/pulls/108190