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

# rtcSetGeometryBuffer(3)

### NAME

-

  ```
  rtcSetGeometryBuffer - assigns a view of a buffer to the geometry
  ```

### SYNOPSIS

-

  ```
  #include <embree4/rtcore.h>
  void rtcSetGeometryBuffer(
    RTCGeometry geometry,
    enum RTCBufferType type,
    unsigned int slot,
    enum RTCFormat format,
    RTCBuffer buffer,
    size_t byteOffset,
    size_t byteStride,
    size_t itemCount
  );
  ```

### DESCRIPTION

The `rtcSetGeometryBuffer` function binds a view of a buffer object (`buffer` argument) to a geometry buffer type and slot (`type` and `slot` argument) of the specified geometry (`geometry` argument).

One can specify the start of the first buffer element in bytes (`byteOffset` argument), the byte stride between individual buffer elements (`byteStride` argument), the format of the buffer elements (`format` argument), and the number of elements to bind (`itemCount`).

The start address (`byteOffset` argument) and stride (`byteStride` argument) must be both aligned to 4 bytes, otherwise the `rtcSetGeometryBuffer` function will fail.

After successful completion of this function, the geometry will hold a reference to the buffer object.

### EXIT STATUS

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

### SEE ALSO

\[rtcSetSharedGeometryBuffer\], \[rtcSetNewGeometryBuffer\]