merge from main

merge from main

fix rasterization of manually double-sided LOD3s

alpha dilation in empty uv space, clamp wrapping on output textures

auto-set save dir to textures subfolder of prefab path, allow choosing which textures to bake

fix decals RTs when 0 decals

auto-set file prefix from prefab name

account for alpha tested overlays

merge from main

performance improvements

clean up decal mesh collider

remove debug tex saving

mesh decal support in working order

wip mesh decal support

add file prefix and ray setback settings, ui cleanup

fix indices > 16 bits, allow null materials (omits submesh)

opaque bg except for missed rays

dilate palette textures, fixes black pixels bleeding into bilinear sampling at ray intersection

merge from main

also bake spec/gloss map

normal map fixes, dilation fixes

clear prefab when switching input type, clear material list before switching mesh

support selecting prefab with auto fill of lod0+lod3 meshes and materials

further normal map progress, output directory saving

progress on baking normal map/smoothness

factor ray set back into configured ray distance, don't dilate alpha

fixes, unwrap source mesh UVs

merge from main

add border dilation

copy more source mesh vertex columns, add saving of baked texture

submesh/multiple material support

initial lod baking tool