Update:
I have renamed the examples:
- Skybox-PBR → PBR_Skybox
- PhysicallyBasedRendering → PBR_Skybox_Texturing
It makes more sense logically and also for testing. Also you can now read in HDR skyboxes to produce nice hi-res images. There are some nice ones here Poly Haven.
I hope to have an anisotropic texturing example done real soon, it wil be called … wait for it … PBR_Skybox_Anisotropy, thanks to @Lfx_Paul for the anisotropic textures.