z_UV_AXIS_ALIGN_SNAP

• optimize uv location , moves uvs to zero to one space for precision in games

z_UV_ALIGN_WORLD

• align uv islands to world axis

z_UV_OVERLAP_CHECK

a slow tho absolute uv overlap check , by intersection checks , separates all overlaping prims, then repacks

z_UV_TEXEL_DENSITY_CHECK

check texel density with colorized debug , handles multiple materials with different texture resolutions by specifiying the materials name string and their rez

z_UV_POLYWIRE

• creates polywire with specific UVs , useful when sweep is not producing desired bends
• seam is oriented toward specific direction to better hide from view

z_UV_TRIM

fits uvs into specific trim sheet area while scaling the pieces along an axis relative to their world space

z_LIGHTMAP_UV_GEN

UVs creation for lightmaps , stored to uv1 with higher merge threshold