CPU + Density map on GPU: 17.228 s @ 80 fps
GPU: 1.523 s @ 24 fps (the distortion problems like the others)
GPU + Weld on CPU: 23.034 s @ 26 FPS (same here)

AMD Athlon64 X2 6000+
nVIDIA GeForce 9800GTX+
2 GB RAM
Win XP 32Bit

CPU=6.375 sec/154 fps while looking at tower(300+ elsewhere) fps
GPU=2.094 sec/75 fps (same distortion)
GPU & WELD 11.3 sec/85 fps (same distortion)

vista 64bit
ultra 790i nvidia chipset
4 gig 2000 mhz ddr3 memory
twin 9800 gx2 geforce SLI
quad core 3.0 ghz Pentium
dx 10

edit:my cards is supposed to support shader 4.0...so I guess I am amzaed that I am getting these distortions also..

I also had firefox and steam running in the background so it might have mad a difference.

ChrisB
Your goal is to create the same effect as the from NVIDIA Cascades demo?
It would be nice to see the shader effects on it, but anyway would be very impressive project.



Look at this video and Please wait a little.
http://www.public.gamefactor.eu/towertest.swf

My specs:

Operating System
Windows System : Microsoft Windows Vista Ultimate 6.00.6001 (Service Pack 1)
Platform Compliance : x86

Processor
Model : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
Speed : 3GHz
Cores per Processor : 2 Unit(s)
Threads per Core : 1 Unit(s)
Type : Dual-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size
L2 On-board Cache : 6MB, ECC, Synchronous, ATC, 24-way, 64 byte line size, 2 threads sharing

System
System : Gigabyte Technology Co., Ltd. EP35-DS3P
Mainboard : Gigabyte Technology Co., Ltd. EP35-DS3P
Bus(es) : PCI PCIe IMB USB FireWire/1394 i2c/SMBus
Multi-Processor (MP) Support : Yes
Multi-Processor Advanced PIC (APIC) : Yes
System BIOS : Award Software International, Inc. F2
Total Memory : 4GB DIMM DDR2 DDR3

Chipset
Model : Giga-Byte P35/G33/G31 Processor to I/O Controller
Front Side Bus Speed : 4x 333MHz (1.33GHz)
Total Memory : 4GB DIMM DDR2 DDR3
Memory Bus Speed : 2x 400MHz (800MHz)

Memory Module(s)
Memory Module : Corsair CM2X2048-6400C5DHX 2GB DIMM DDR2 PC2-6400U DDR2-800 (5.0-5-5-18 3-22-6-3)
Memory Module : Corsair CM2X2048-6400C5DHX 2GB DIMM DDR2 PC2-6400U DDR2-800 (5.0-5-5-18 3-22-6-3)

Video System
Adapter : NVIDIA GeForce 9800 GTX/9800 GTX+ (512MB DDR3, 625MHz/1.45GHz/2x1.10GHz, PCIe 1.00 x16, SM4.0)

Graphics Processor
Adapter : GeForce 9800 GTX/9800 GTX+ (1.01, 512MB, 1.69GHz)

Thx everybody for testing it.
HERE is a new, fixed version for you.
Slin helped me alot with testing, thank you Slin.
The new version should run on all ShaderModel3.0 cards. The gpu+weld on cpu mode should also be way faster now, so please give it a try again and post your results.

Thx
ChrisB

my numbers:
cpu: 24.5sec
gpu: 13.5sec
gpu+weld: 16.5sec

PC:
PentiumD 820 (2*2.8Ghz)
Geforce 6600GT
1GB ram

you fixed some of the rendering problem for gpu and gpu+weld on cpu but there is still some left


gpu = 28fps 2.131 sec
its ragged| not smoothed and lots of holes in the generated object.

gpu,weld on cpu
110fps
2.221 sec calculation
its not ragged but lots of holes in the generated object.

cpu density map on gpu
8.543 calculation
fps = 100-99

cpu: 7.23
gpu: 2.22
gpu + weld on cpu : 3.69

gpu one is not welded and not smooth.


9600gt sonic
core2quad q9300 @ 2.5

New tests with the "fixed" version:

CPU + Density map on GPU: 15.870 s @ 83 fps
GPU: 1.726 s @ 10-32 fps (jumping fps, unsmooth-shading)
GPU + Weld on CPU: 4.818 s @ 102 FPS (A LOT IMPROVED, some shading abnormalities)

AMD Athlon64 X2 6000+
nVIDIA GeForce 9800GTX+
2 GB RAM
Win XP 32Bit

WinVista Ultimate SP1
2 GB RAM
Core 2 duo 2.53~
Nvidia GeForce 8600 GT

GPU: 4.458sec @ 17 FPS
GPU + Weld on CPU: 4.458sec @ 17 FPS (Duh! The same!)
CPU: 4.458sec @ 17 FPS

Hi,
it took me the whole weekend to record this two little videos, i hope you like them.

It uses Newton for physics. Sadly building one tower takes nearly 10min, mainly because i didn'T figured out how to use newton in several threads and those pipes need really long to calculate.



Watch in HD!

upcoming contribution: ingame video recorder. Save your game scene directly as .avi or ogg theora, without any extra tools.

That's looking great.
I'm always thinking of water rushing down on this rock. Waterfalls and such. I think it would fit the scene very good.

The contribution sounds interesting, is it going to save every calculated frame then?