New demo

[willardjuice]

I get around 1000~1300 fps (1600x1200 resolution) on my X1950CF+X1900XT in Vista x64. Pretty cool demo (as always ).

Btw, do demo's like this scale well with Crossfire (I mean obviously OpenGL Crossfire isn't supported with Vista atm, but you know, normally)?

 

[Andrew Lauritzen]

At some point this introduces aliasing as you get fewer and fewer pixels per ring. So instead I look up a noise value in a texture and compute the rings from that.

What no analytic shader antialiasing?

Just kidding - textures make perfect sense in this case. My mantra is to use/abuse the hardware filtering and LOD whenever possible

 

[Humus]

Btw, do demo's like this scale well with Crossfire (I mean obviously OpenGL Crossfire isn't supported with Vista atm, but you know, normally)?

Well, it depends from demo to demo, but I think most of my demos would run just fine in AFR mode. I don't have CF myself though so I never test for that. This demo isn't so heavy though that it would really need CF, but for instance Volumetric Fogging 2 could really make good use of CF.