How do I get the Cycles Principled BSDF shader to support a base color image such as a 32bit png with alpha or a tga with an alpha channel, and get the transparency to work. I don't see anywhere on the Principled BSDF shader that handles transparency.
Without success, I have tried:
- Properties Editor>Render tab>Film rollout>Transparent
- Properties Editor>Material tab>Settings rollout>Viewport Alpha (changing to other than Opaque).
- Adding a Transparent BSDF and Diffuse BSDF after the base color image node and using a Mix Shader to combine them.