---
name: "rtcGetGeometryThreadSafe"
section: "3embree4"
platform: "linux"
package: "embree"
version: "4.4.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/rtcGetGeometryThreadSafe/3embree4"
---

# rtcGetGeometryThreadSafe(3embree4)

### NAME

-

  ```
  rtcGetGeometryThreadSafe - returns the geometry bound to
    the specified geometry ID
  ```

### SYNOPSIS

-

  ```
  #include <embree4/rtcore.h>
  RTCGeometry rtcGetGeometryThreadSafe(RTCScene scene, unsigned int geomID);
  ```

### DESCRIPTION

The `rtcGetGeometryThreadSafe` function returns the geometry that is bound to the specified geometry ID (`geomID` argument) for the specified scene (`scene` argument). This function just looks up the handle and does *not* increment the reference count. If you want to get ownership of the handle, you need to additionally call `rtcRetainGeometry`.

This function is thread safe and should NOT get used during rendering. If you need a fast non-thread safe version during rendering please use the \[rtcGetGeometry\] function.

### EXIT STATUS

On failure `NULL` is returned and an error code is set that can be queried using `rtcGetDeviceError`.

### SEE ALSO

\[rtcAttachGeometry\], \[rtcAttachGeometryByID\], \[rtcGetGeometry\]