Graphics.Blit with multiple Source Textures

Unity Engine
1

I want to combine two render textures (a: video camera image, b: segmentation mask of person in video camera image; coming from ARKit, btw) into one render texture using Graphics.Blit with a material.

How would I go about this? I know that I can do the shader with Amplify Shader Editor, but how would I pipe the textures into the shader with Graphics.Blit?

Thanks a lot!

2

You can assign one of source textures to material.
Material.SetTexture and sample it in shader.