An intro to some of the settings available in C4D to threejs via glTF.
threejs reads the glTF materials as a MeshStandardMaterial, but not all of the settings are 1:1. This video walks through some of the settings (normal, alpha, color) and shows an example of a PBR texture as well as a standard texture.
This is a pretty rambly video but this is helpful then I'd be happy to make more focused videos explaining specific topics.
FYI most of the textures are from here: / gendo
1:01 - modeling basics
2:22 - deformers
12:10 - textures - reflections
17:16 - normal maps
19:15 - alpha channel