FBXLoader: Removed envMapIntensity parameter

[looeee]

I added support for the material.envMapIntensity in #12317, but it's causing a console warning when Phong materials are created so I've removed it for now.

I plan to add proper support for MeshStandardMaterial, wich will require refactoring of the parseParameters function. I'll add this parameter back then.

[looeee]

By the, I'm aware that the current parameters.reflectivity will also cause a warning with Lambert or Standard materials.

However, while FBX does support material type 'lambert', I have not yet managed to find or create a model that actually uses this, while every non-raytraced material type exported from 3DS Max (Blinn, Phong, Oren-Nayer, Blinn_Phong, Multilayer etc. etc. ) has material type 'phong'.

So warnings for materials that don't have a .reflectivity parameter should be very rare for now, and worth it in exchange for simple support of environment maps for Phone materials, since this is almost exclusively the material currently created by the loader.

[mrdoob]

Thanks!

[WestLangley]

I plan to add proper support for MeshStandardMaterial

I am not sure I agree with that. What model format is assumed by the FBX model parameters?

I would expect the only loader that should output MeshStandardMaterial at this point is glTF.

[looeee]

@WestLangley I should have said "investigate whether we can add support for MeshStandardMaterial".

Which I have done - there are two materials types supported in the FBX format: FbxSurfaceLambert and FbxSurfacePhong.

In practice though, I have tested exporting every type of material available in 3DS Max and they all either export with type "phong" or "unknown".

So we should probably change the default material type in the loader from Standard to Phong.

Interestingly, it does look like it may be possible to export GLSL materials, although it would be quite a bit of work. I'll leave investigating that fully until I need it though...

[WestLangley]

So we should probably change the default material type in the loader from Standard to Phong.

Right.