Lightsmark 2008 (RTGI demo)

[Dee.cz]

Hello,

I released new real-time global illumination demo Lightsmark 2008.

For lack of time, it has the same content as Lightsmark 2007, but engine is new - nearly 2x faster (500+ average fps not exception), it adds per-pixel indirect shadows and per-pixel color bleeding, Linux versions and native 64bit versions.

Stepan

 

[nyt]

Nice. 171.8 at 1680x1050 (X1900XTX), but although fps are high it is stuttering all over the place... Anyone with a 7900GTX can bench to see how visionnary ATI was with heavy ALU workloads?

 

[CarstenS]

Very nice! Thanks for your efforts, Stepan.

 

[fellix]

490 FPS for me (1600*1200), on HD4870 @790/1050, Q9450 @3200 and the latest Cat 8.8 beta.

 

[Arnold Beckenbauer]

HD3850 (720/890):
1280x1024: 210,3
1280x1024&4xMSAA: 175,6

CPU: 3600+ X2 S939 (2,0 GHz)

 

[Mintmaster]

Do dynamic objects create indirect shadows too?

Also, how much computation is done by the CPU?

 

[CarstenS]

Haven't done multiple iterations, so the results might vary a bit, but interestingly, in the first run at 602/1458/1107 MHz, I got 555.9 Fps in 16x12, while the second one with the defaults of my GTX280 (700/1404/1107) was actually 1/11th faster at 609.7 Fps.

One would think, all depends on the shaders, but apparently, they matter less than setup/raster/tex/rop in case of the GTX280.

(C2D E8500@3,8/6 Gig RAM/Vista x64 no SP1/177.72 HQ)

@Stepan:
I am curious: after clicking on the picture for 64 bit mode, there's also drop downs for penumbra quality and light stability which default to "highest supported" - is that the same for all DX10 cards?

edit:
Curiously, Lightsmark 2008 is not pixel bound - at least not very much. At 16x12, I'm getting about 1,2 GPix/s of fill with heavy OC (702/1512/1296), at 25x16 it's up to almost 1,6 GPix/s.(387,9)

 

[Arwin]

I thought I'd try this because I did the 2007 version as well ...

1680x1050: 20.6
1280x1024: 24.4

 

[Neb]

I thought I'd try this because I did the 2007 version as well ...

1680x1050: 20.6
1280x1024: 24.4

Is that the PS3 score? ..../JK

7900GT + AMD 64 4200+ gets average 136.7fps at 1280x1024.

 

[kyetech]

my laptop:

dual 2.4ghtz.
nvidia quadro nvs140... ugh!

@1280x1024 =14fps!

 

[trinibwoy]

Nice. 171.8 at 1680x1050 (X1900XTX), but although fps are high it is stuttering all over the place... Anyone with a 7900GTX can bench to see how visionnary ATI was with heavy ALU workloads?

My mobile 7900GTX got 97.1 at 1680x1050. It's running at 500Mhz compared to the 650Mhz of the desktop version. No stuttering.