Thanks ulrich
I paste this code from others,and not check!
--- 09年4月2日，周四, Ulrich Hertlein <u.hertl...@sandbox.de> 写道：
发件人: Ulrich Hertlein <u.hertl...@sandbox.de>
主题: Re: [osg-users] Depth buffer data is not clamp to [0.0,1.0].
收件人: "OpenSceneGraph Users" <osg-users@lists.openscenegraph.org>
日期: 2009年4月2日,周四,下午5:14
Hi YangXiao,
On 2/4/09 3:22 PM, YangXiao wrote:
> z = float ( (depthBuffer->data())[i*4] );
Could it be your cast is wrong? You're only reading every fourth byte and
casting that to float, which explains why you're only seeing 0-255.
Try "z = ((float*) depthBuffer->data())[i];" instead.
/ulrich
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