Optional
Readonly
'default': tinybvh's default builder (SIMD Bonsai), the tracer's trees. 'hploc': its scalar BuildHPLOC (leaves of one triangle), slow, for comparing the GPU H-PLOC's trees with (B2).
'default'
'hploc'
BuildHPLOC
'default': tinybvh's default builder (SIMD Bonsai), the tracer's trees.'hploc': its scalarBuildHPLOC(leaves of one triangle), slow, for comparing the GPU H-PLOC's trees with (B2).