• Fix possible NPE when updating fog options from Java/Kotlin
• The emissive property was not applied properly to MASKED materials, and could cause
  dark fringes to appear (recompile materials)
• Allow glTF materials with transmission/volume extensions to choose their alpha mode
  instead of forcing MASKED
• Fix a crash in gltfio when not using ubershaders
• Use flatmat for mat parameter in jsbinding
• Fix TextureFlags for sheenRoughnessMap when textures of sheenRoughnessMap and sheenColorMap is same
• Directional shadows can now be transformed (b/297095805)