[Feature request] Backface color support

[jo-chemla]

This backface culling override feature is great to override the backface culling property for gltf mesh tiles. Another great option would be to let the user define a backface color, so one could choose to either:

• use the default backface culling property of each tile
• or enforce backface culling to be true (dont show non front facing polygons) or false (don't cull these polygons)
• or set backface color to something other than transparent (opaque color like black would be the easiest option, this could as well evolve to support semi-transparent colors, alpha blending etc,)

Also linked: underground color for terrain

[ggetz]

Thanks for the suggestion @jo-chemla!

[jo-chemla]

Note for people stumbling here, other js 3dtiles viewer libraries do support this custom material option (and therefore custom backface), for example NASA-AMMOS/3DTilesRendererJS custom-material