[Kaotik]

http://finance.yahoo.com/news/NVIDIA....html?x=0&.v=1

They advertise it as "World's First Interactive Ray Tracing Engine", which sounds kinda fishy considering things like OpenRT Project (SIGGRAPH 2005) and CausticRT (CaustiGL), what exactly would make this project any more interactive?

nVidia's solution includes nVidia OptiX, SceniX, CompleX and PhysX

[Davros]

well heres some Interactive OptiX ray tracing engine examples (quadro only)
http://developer.nvidia.com/object/optix-examples.html

[Kaotik]

But what I'm questioning is, what makes this one more "interactive" than the others demonstrated so far? (though the openrt was cpu only i think, should have double checked that before posting it)

[TimothyFarrar]

You might understand if you had a 4x Tesla C1060 PSC to play with. Guessing from NVidia's ray traversal paper, that's perhaps 160M to 800M ray traversals/sec depending on ray coherency?. That's just a 4 GPU system, now imagine an entire cluster of Tesla S1070 1Us ... that would be quite interesting indeed.

[rendezvous]

Originally Posted by TimothyFarrar

You might understand if you had a 4x Tesla C1060 PSC to play with. Guessing from NVidia's ray traversal paper, that's perhaps 160M to 800M ray traversals/sec depending on ray coherency?. That's just a 4 GPU system, now imagine an entire cluster of Tesla S1070 1Us ... that would be quite interesting indeed.

Are talking about the paper Understanding the Efficiency of Ray Traversal on GPUs by Timo Aila and Samuli Laine at NVIDIA Research? Those are quite impressive figures.

I wonder if you, since you are at siggraph, could do some digging?

One thing that Causic seems to be doing right is trying to extract coherency to enable parallellism, and the shading which is done on CPU (or GPU) will be done on coherent data. I.e. the CPU is able to run SIMD shader code on a number of samples at the same time.
Is nvidia trying to hanlde shading in the same way, or will the user get a bunch of "random" samples to work with? If so, is that a problem or can it be worked around?

Anothing thing is a tweet from Mental Images that seems interesting.

True photo-real rendering, either Mental Ray or using RealityServer? Go to NVIDIA booth - Barry or Patrick will show you iray®...

If you don't want to or don't have time that is cool as well. Have fun!

[trinibwoy]

Nividia has the slides posted - http://developer.nvidia.com/object/siggraph-2009.html

[MfA]

Originally Posted by TimothyFarrar

You might understand if you had a 4x Tesla C1060 PSC to play with. Guessing from NVidia's ray traversal paper, that's perhaps 160M to 800M ray traversals/sec depending on ray coherency?. That's just a 4 GPU system, now imagine an entire cluster of Tesla S1070 1Us ... that would be quite interesting indeed.

Yes, they might be able to start putting shiny metal balls in a Doom3 level and render it with RT raytracing

[trinibwoy]

Originally Posted by Davros

well heres some Interactive OptiX ray tracing engine examples (quadro only)
http://developer.nvidia.com/object/optix-examples.html

Samples are finally up. Still no idea why a Quadro is required to run them though.

[Davros]

My guess, companies doing ray tracing have big budgets and nv dont want them buying geforces instead

[madyasiwi]

Some appears to be able to run it on GTX 295 and GTX 260s in SLI:

http://www.geeks3d.com/20090827/nvid...e-for-windows/

[Enforcer]

I made a fix for running them on Geforce:
http://rapidshare.de/files/48284438/...patch.zip.html

[mapel110]

Originally Posted by madyasiwi

Some appears to be able to run it on GTX 295 and GTX 260s in SLI:

http://www.geeks3d.com/20090827/nvid...e-for-windows/

Yes, there are also some who run it on a 9600 GT or single gtx260.

But I only get this error-msg with my gtx260
http://www.abload.de/img/faildof3.png

[CNCAddict]

wow, those billiard balls look amazing. Not sure if it's the depth of field or something else...but getting that kind of quality at a high frame rate is nice.

[Neb]

Wow that is amazing!

Imagine a pool game using this engine.

[Enforcer]

Originally Posted by Nebula

Wow that is amazing!
Imagine a pool game using this engine.

[trinibwoy]

Originally Posted by Enforcer

I made a fix for running them on Geforce:
http://rapidshare.de/files/48284438/...patch.zip.html

AVP flags it as a threat saying it detected HackTool.GUN. Also, I'm getting a missing MSVCP71.dll error.

[Enforcer]

Originally Posted by trinibwoy

AVP flags it as a threat saying it detected HackTool.GUN. Also, I'm getting a missing MSVCP71.dll error.

Here is the source code of binpatch.exe, sorry i forgot to include it in .zip:

#include <iostream>
#include <fstream>
using namespace std;

ifstream::pos_type size;
char * memblock;

int hex2bin(char *s,char *o) {
  int r=0;
  while(strlen(s)>=2) {
    int b;
    sscanf(s,"%02X",&b);
    o[r++]=b;
    s+=2;
  }
  return r;
}

int main (int argc, char* argv[]) {
  if (argc<4) { cout << "Usage:\n patch file.exe 7504C2 EB04C2\n";return -1; }
  fstream file (argv[1], ios::in|ios::out|ios::binary|ios::ate);
  if (!file.is_open()) { cout << "Unable to open file";return -1; }

  size = file.tellg();
  memblock = new char [size];
  file.seekg (0, ios::beg);
  file.read (memblock, size);

//  cout << "the complete file content is in memory\n";

  char *s1 = new char [strlen(argv[2])/2];
  int l1 = hex2bin(argv[2],s1);
  char *s2 = new char [strlen(argv[3])/2];
  int l2 = hex2bin(argv[3],s2);
//  cout << "searching for " << l1 << " bytes";

  int p;
  for(p=0; p+l1 < size; p++) 
    if(!memcmp(memblock+p, s1, l1)) break;
  if (p+l1 == size) { cout << "Unable to find pattern";return -1; }

  cout << "found at: " << hex << p << "\n";

  file.seekg (p, ios::beg);
  file.write (s2, l2);

  cout << "patched\n";

  file.close();
  delete[] memblock;

  return 0;
}

[trinibwoy]

Originally Posted by Enforcer

Here is the source code of binpatch.exe, sorry i forgot to include it in .zip

Thanks. What do those bytes represent btw?

[CarstenS]

If you'd like, here are some videos we made:

http://www.youtube.com/watch?v=zuovwcamZNc
http://www.youtube.com/watch?v=_jD0qSAsvr4
http://www.youtube.com/watch?v=pt1jKQpcAXM

[Arwin]

Originally Posted by Nebula

Wow that is amazing!

Imagine a pool game using this engine.

Yeah. Though I'm not sure what the upcoming Hustle Kings on PS3 is doing, but it looks pretty nice also.

[trinibwoy]

Originally Posted by Nebula

Wow that is amazing!

Imagine a pool game using this engine.

Yeah but these scenes are pretty static. Updating the scene every frame is a big part of the workload too so performance could suffer.

[PhilB]

Originally Posted by Enforcer

I made a fix for running them on Geforce:
http://rapidshare.de/files/48284438/...patch.zip.html

Doesn't work for me. Any ideas?

[trinibwoy]

Did you put the files in the same directory as the patch before running? Works fine for me (once I disabled AVG).

[PhilB]

Originally Posted by trinibwoy

Did you put the files in the same directory as the patch before running? Works fine for me (once I disabled AVG).

Yeah all three. How long did it take for you patch it? It shows the patching screen for me but it stops at the first green line. I'll try disabling avg and see if that helps.

[spacemonkey]

Enforcer, thanks for the patch and the source. What do these magic numbers mean?

394424207405C644241F01 394424207400C644241F01
4658000051756164726F00 475400004765466F726300

Is anyone getting this error when starting the demos, after applying the patch in Win 7:

"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."