rtcUpdateGeometryBuffer(3) Embree Ray Tracing Kernels 4 rtcUpdateGeometryBuffer(3) 

rtcUpdateGeometryBuffer - marks a buffer view bound to the geometry
  as modified


#include <embree4/rtcore.h>
void rtcUpdateGeometryBuffer(
  RTCGeometry geometry,
  enum RTCBufferType type,
  unsigned int slot
);

The rtcUpdateGeometryBuffer function marks the buffer view bound to the specified buffer type and slot (type and slot argument) of a geometry (geometry argument) as modified.

If a data buffer is changed by the application, the rtcUpdateGeometryBuffer call must be invoked for that buffer. Each buffer view assigned to a buffer slot is initially marked as modified, thus this function needs to be called only when doing buffer modifications after the first rtcCommitScene.

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

[rtcNewGeometry], [rtcCommitScene]