I have a cube whose front faces are red (material slot 1) and back faces are blue (material slot 2). The shader is very simple:
Of course the cube just looks very red:
But what I found interesting is, when I set both of the materials’ Blend Mode to Alpha Blend, the red faces become completely invisible.
It baffles me in many ways:
- Why are the red faces invisible? Shouldn’t Diffuse BSDF be opaque, regardless Blend Mode?
- Why doesn’t this happen when I use Alpha Clip or Alpha Hashed?
- Why doesn’t this happen when I only set the red faces’ Blend Mode, but not the blue faces’?
Any insight on this?