fast path for procedural leaves

if traversal is done one can test for the presence of a committed hit to either invoke miss or closest hit shader

signal that a ray query will not be used further. This is the moral equaivalent of a delete this function does an implicit sync

! intersects two boxes */

! returns true if the mapping is invalid in some dimension */

! compute inverse matrix */

! compute inverse matrix */

checks if the node is closed */

checks if the last hit is opaque */

! loads an image from a file with auto-detection of format */

Performs equivalent check of std::fabs(lhs - rhs) <= margin But without the subtraction to allow for INFINITY in comparison

! parse XML header */

! parse XML parameter */

! returns the primitive ID */

Returns the primitive IDs */