rtcOccludedNp - Online Linux Manual Page

Section : 3
Updated :
Source :
Note : Embree Ray Tracing Kernels 3

NAME

rtcOccludedNp − finds any hits for a SOA ray stream of size N

SYNOPSIS

#include <embree3/rtcore.h>

void rtcOccludedNp(
  RTCScene scene,
  struct RTCIntersectContext* context,
  struct RTCRayNp* ray,
  unsigned int N
);

DESCRIPTION

The rtcOccludedNp

function checks whether there are any hits for a SOA ray stream (

ray

argument) of size

N

(basically a large ray packet) with the scene (

scene

argument). The

ray

argument points to a structure of pointers with one pointer for each ray component. Each of these pointers points to an array with the ray component data for each ray. This way the individual components of the SOA ray stream do not need to be stored sequentially in memory, which makes it possible to have large varying size ray packets in SOA layout. See Section [rtcOccluded1] for a description of how to set up and trace occlusion rays.

A ray in a ray stream is considered inactive if its tnear

value is larger than its

tfar

value.

The stream size N

can be an arbitrary positive integer including 0. Each ray component array must be aligned to 16 bytes.

EXIT STATUS

For performance reasons this function does not do any error checks, thus will not set any error flags on failure.