rtcSetGeometryOccludedFilterFunction - sets the occlusion filter for the geometry
#include <embree3/rtcore.h> void rtcSetGeometryOccludedFilterFunction( RTCGeometry geometry, RTCFilterFunctionN filter );
rtcSetGeometryOccludedFilterFunction function registers an occlusion filter callback function (
filter argument) for the specified geometry (
Only a single callback function can be registered per geometry, and further invocations overwrite the previously set callback function. Passing
NULL as function pointer disables the registered callback function.
The registered intersection filter function is invoked for every hit encountered during the
rtcOccluded-type ray queries and can accept or reject that hit. The feature can be used to define a silhouette for a primitive and reject hits that are outside the silhouette. E.g. a tree leaf could be modeled with an alpha texture that decides whether hit points lie inside or outside the leaf.
Please see the description of the
rtcSetGeometryIntersectFilterFunction for a description of the filter callback function.
On failure an error code is set that can be queried using