What's the easiest way for someone to change material colors in an FBX?

Justo

Title says it all. My client wishes to change mat colors in the FBXs I'm giving them. Before I suggest him to import things to any DCC app (they're more familiar with Max, but they have very little knowledge of 3D packages), I was wondering if there was an even easier way, like a small FBX viewer app that would allow to change this and overwrite the FBX. Do you know anything worth checking out?

Eric Chadwick

Depends on the complexity of the FBX.

Is there skinning or animation, or just a mesh?

FBX is a messy format, with sketchy support in different tools, so you're bound to lose data as you import/export it.

Client should go to the source file, and get whoever made it to do the edits.

Justo

Just a mesh; no skinning/animation. I could provide them the file in a scene already to avoid having them to import it I suppose. 

Eric Chadwick

Well you could also use an online 3d software like three.js or babylon.js, those are easy-ish to edit material colors. The format will be glTF, but that can be converted to/from FBX without much trouble.