Lighting in LookSee lacks useful specular highlights seen in ChimeraX

[tomgoddard]

It may be possible to add some non-zero metalicity to the GLTF ouput in ChimeraX so that the GLTF physical based rendering better matches the specular highlighting seen in ChimeraX. These specular highlights seen in SteamVR ChimeraX rendering look clearly better than the flat lighting seen in LookSee. Another option might be to have the LookSee GLTF reader modify the metalicity. It would be nicer if the correct GLTF metalicity setting was in the file so the GLTF files from ChimeraX render in other viewers like BabylonJS with similar appearance to ChimeraX.