/// begin a new frame (recycle old buffers)
void R_BufferData_NewFrame(void);
/// request space in a vertex/index/uniform buffer for the chosen data, returns the buffer pointer and offset, always successful
/// begin a new frame (recycle old buffers)
void R_BufferData_NewFrame(void);
/// request space in a vertex/index/uniform buffer for the chosen data, returns the buffer pointer and offset, always successful