[ < ] [ Up ] [ > ]               [Top] [Contents] [Index] [ ? ]

2.7.2 Updating Index Buffers

Updating index buffers can only be done when you lock the buffer for writing; See section 2.4 Locking buffers for details. Locking returns a void pointer, which must be cast to the apropriate type; with index buffers this is either an unsigned short (for 16-bit indexes) or an unsigned long (for 32-bit indexes). For example:
 
unsigned short* pIdx = static_cast<unsigned short*>(ibuf->lock(HardwareBuffer::HBL_DISCARD));
You can then write to the buffer using the usual pointer semantics, just remember to unlock the buffer when you're finished!


This document was generated by Steve Streeting on , 12 2006 using texi2html