public unsafe bool Occluded(Point3D from, Vector direction, float near = 0, float far = float.PositiveInfinity, float time = 0)
{
var p = RTC.RayInterop.Packet1;
p->orgX = from.X; p->orgY = from.Y; p->orgZ = from.Z;
p->dirX = direction.X; p->dirY = direction.Y; p->dirZ = direction.Z;
p->geomID = RTC.InvalidGeometryID;
p->primID = RTC.InvalidGeometryID;
p->instID = RTC.InvalidGeometryID;
p->time = time;
p->tnear = near;
p->tfar = far;
RTC.Occluded1(scenePtr, p);
return(p->geomID == 0);
}
