It may be going on for 4 years old now, but GPU Gems is still a fantastic resource - in fact now that you can rely on being able to use the techniques it contains on a much larger array of hardware, it’s perhaps even more practically useful than it was on release. Graphical products outside the hardcore gaming space (and this is where Ogre gets used most) are increasingly catching up and using more advanced shader effects now, and so a resource like this is actually maturing rather well.
You can imagine how pleased I was, therefore, to hear that NVIDIA and Addison Wesley have now made the whole book available for free online! That’s a fantastic offer and if you don’t have the book already you need to follow that link immediately and see what you’ve been missing. There are another 2 books in the series too of course once you’re done with that one, although for now you’ll have to reach into your pocket for those 
Thanks as always go to Kevin Bjorke at NVIDIA for bringing this to our attention in the OGRE Forums, and who of course had no small part in creating the book in the first place.
March 27th, 2008 at 6:44 pm
Thanks for the link, it looks really usefull
March 27th, 2008 at 9:09 pm
Thanks Steve. I’m curious, was the section on Volume Rendering Techniques helpful with your cloud rendering project? Were any of these techniques used: http://www.markmark.net/clouds/RTCRDownload.html
March 28th, 2008 at 9:18 am
@Dan: the techniques in the volume rendering section will definitely give you some insights into what I did, yes
We looked at SkyWorks during the development but we use a different technique because we wanted more scalable detail and larger cohesive cloud banks. I can’t say more until Linden publicly release it.