StandardNodeMaterial: Rough metals are too reflective.

[donmccurdy]

Rough metals are more reflective than their MeshStandardMaterial counterparts. Very likely missing a fix similar to #13501. This is the glTF metal/rough spheres example:

StandardNodeMaterial	MeshStandardMaterial

/cc @sunag

[sunag]

@donmccurdy Thanks you! I already fixed this. It was really the maxMIPLevels. I will just wait merger this PR: #14214 to publish the next. Your WIP PR of GLTF with nodes also helped 👍

[donmccurdy]

Excellent, thank you!

[mrdoob]

@donmccurdy Thanks you! I already fixed this. It was really the maxMIPLevels. I will just wait merger this PR: #14214 to publish the next.

Merged! ✌️

[sunag]

Fix here: #14333