Sounds sensible to me. I'm just a little too keen. All in all though I've been really impressed by the performance already. I'll start making a test scene and perhaps add a few features that can be toggled, like render to texture etc. I'll see if I find time this weekend
On 27 October 2010 13:39, Robert Osfield <[email protected]> wrote: > Hi Thomas, > > On Wed, Oct 27, 2010 at 12:12 PM, Thomas Hogarth > <[email protected]> wrote: > > At the moment I'd say my scene isn't complex enough to really tell, > > everything is in one location and there aren't many geodes. Main reason > I'm > > looking into it is the apple docs state that it's a waste of cpu to depth > > sort and I'm just looking for all the extra performance I can find (doing > > computer vision). I won't expect any miracles :). > > I wonder if the Apple docs actually mean it's pointless depth sorting > opaque objects, something that the OSG doesn't do by default anyway - > it states sorts for the opaque bin. > > For the transparent bin you still need to render from back to front to > get the correct blending, unless the driver knows about transparent > objects needing to be render back to front. > > As for looking for an optimization here, I really don't think it's > worth your while, you are attempting premature optimization - deciding > what the bottlenecks are before you've even tested it. I would > recommend doing actual benchmarks on the target hardware/OS with the > types of datasets you will be using and then profile it closely to > establish what are the bottlenecks. > > Robert. >
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