---
name: "rtcFilterIntersection"
section: "3"
platform: "linux"
package: "libembree-dev"
version: "4.3.3+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/rtcFilterIntersection"
---

# rtcFilterIntersection(3)

### NAME

-

  ```
  rtcFilterIntersection - invokes the intersection filter function
  ```

### SYNOPSIS

-

  ```
  #include <embree4/rtcore.h>
  void rtcFilterIntersection(
    const struct RTCIntersectFunctionNArguments* args,
    const struct RTCFilterFunctionNArguments* filterArgs
  );
  ```

### DESCRIPTION

The `rtcFilterIntersection` function can be called inside an `RTCIntersectFunctionN` callback function to invoke the intersection filter registered to the geometry and stored inside the context. For this an `RTCFilterFunctionNArguments` structure must be created (see `rtcSetGeometryIntersectFilterFunction`) which basically consists of a valid mask, a hit packet to filter, the corresponding ray packet, and the packet size. After the invocation of `rtcFilterIntersection`, only rays that are still valid (valid mask set to -1) should update a hit.

### EXIT STATUS

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

### SEE ALSO

\[rtcFilterOcclusion\], \[rtcSetGeometryIntersectFunction\]