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

rtcNewBufferHostDevice - creates a new data buffer with 
  explicitly managed host and device memory allocations


#include <embree4/rtcore.h>
RTCBuffer rtcNewBufferHostDevice(
  RTCDevice device,
  size_t byteSize
);

The rtcNewBufferHostDevice function creates a new data buffer object of specified size in bytes (byteSize argument) that is bound to the specified device (device argument). The buffer object is reference counted with an initial reference count of 1. The returned buffer object can be released using the rtcReleaseBuffer API call. If Embree has SYCL support enabled and the SYCL device has no host unifed memory (e.g, a discrete GPU), the buffer allocates memory on the host and device explicitly. After the buffer is modified on the host rtcCommitBuffer can be used to synchronize host and device memory by copying the buffer content from the host to device. If the Embree version has no SYCL support or the SYCL device has host unified memory, the buffer will behave the same as a buffer created using rtcNewBuffer. The specified number of bytes are allocated at buffer construction time and deallocated when the buffer is destroyed.

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

[rtcCommitBuffer], [rtcNewBuffer], [rtcRetainBuffer], [rtcReleaseBuffer]