How to add an image texture/color as an overlay to a base texture at a specific part of the object and animate the texture/color alpha? I have this image texture wrapped around a UV Sphere. I would like to add a separate color/image texture in the area inside red circle marked and animate the alpha of the newly added texture inside red circle. Is there any method to do this?
You can use the same principle as this answer, and add a math node (or other) to control the decal the way you want.