A 64-bit hash (two u32s, never both 0) of a mesh's positions (their bits)
and indices (their values, so 16- and 32-bit indices hash alike): what a
tree written with its geometry records, so that loading it next to other
geometry is refused. A check against mistakes, not a cryptographic one.
Triangle flags and materials are not part of it.
A 64-bit hash (two u32s, never both 0) of a mesh's positions (their bits) and indices (their values, so 16- and 32-bit indices hash alike): what a tree written with its geometry records, so that loading it next to other geometry is refused. A check against mistakes, not a cryptographic one. Triangle flags and materials are not part of it.