Terrain tool selection
Splatting tool & compute shader, balances weights automatically
Artist defined splats (albedo, normal, roughness, more is probably overkill) - use summed control map
Nicer brush defaults
Don't use VirtualWidgets for terrain tool selection, they're the most simple buttons + tooltips
Better behaved brush preview, don't destroy/create every frame, can destroy on disable or invalid tool
more normal normals
default first layer for any missing weight
Terrible performing Texture -> Pixmap, but only because of GetPixels on a 4k texture