RT GPU starting properly but window remains black

[Pixelab]

UPDATE 04-04-2011 Problem solved

Delete the clbin in C:/users/***/AppData/Local/Temp/


Stats (yellow text in the right upper corner) shows a working engine but activeshade window remains black. If I change something in the scene, stats updates, but image remains black. If I switch to CPU RT, it works fine.

Specs are Vray 2.00.02, max 2011 x64, quadro 4000 GPU

A mate of mine did the test with the same scene, same setup (GPU etc.) and did worked fine.

I'm puzzeled by this issue ...

Here'a a screengrab of the problem.



Uploaded with ImageShack.us

[vlado]

What happens if you change the background color? Do you see a change?

Best regards,
Vlado

[Pixelab]

Nothing happens, even after a restart of the server and activeshade window. I've also tried a Vray color, or a Vray Sky as environement, does work in RT CPU, nothing new in RT GPU

[vlado]

Ok then; does it work on a very simple scene (sphere and omni light)?

Best regards,
Vlado

[ghiom3d]

Did you see something if you use perspective or standard camera instead of physicalCamera ?

[Pixelab]

Thanks for your help. Unfortunately, still no image with simple scene and perspective view, or standard cam...

[vlado]

Have you tried also a standard camera, rather than a physical one?

Best regards,
Vlado

[digitalx3d]

I'm having the same problem it seems. RT GPU has worked fine in the past, but not today. No idea why either. CPU works. GPU gives me a black screen. I deleted the .clbin file, restarted the machine, tried with a simple brand new scene (just a box and sphere). I'm really puzzled. Any help would be really appreciated.
Thanks!


[edit]
I am seeing a number or error messages in the render server window.
"Error -36 at line 1716 , in file ./src/ocl_tracedevice.cpp !!!"
"Error -36 at line 915 , in file ./src/ocl_tracedevice.cpp !!!"

It lists these two errors several times. Maybe this is helpful? I'll try reinstalling RT and see if that helps.

[digitalx3d]

ok... reinstalled Vray and updated Nvidia drivers to 267.xx and still the same issues. Stumped.

[Pixelab]

Yes Vlado, I tried with a standard cam and it doesn't work.

Thanksfor you input John, I'm not alone in this... May I ask what is you GPU model ? Mine is a new Qaudro 4000, as I mentionned, a friend of mine has an equivalent config and it work perfectly.

I'll try a new nvidia driver and a Vray reinstall, but I don't think it'll help.

[digitalx3d]

I've got a new GTX570. So odd that it worked just fine one day, and a few days later it doesn't. Philippe, have you been having any other issues with your GPU at all? I have been experiencing some artifacting in the max viewports here and there. Spikes in the geometry and some strange purple bands over a particular color (this even happens on my windows desktop). I'm wondering if my card is either under powered or over-heating. A couple days ago I took my box outside and blew it out real good with the air compressor and canned air. There was quite a bit of dust in there, so maybe over-heating was an issue, however I haven't really been using 3dsMax much in the last few days to draw any real conclusions.

[Pixelab]

No issue at all, the card works perfectly well otherwise, fortunately !

If you looking for good third party cooling solution, try Accelero XTREME Plus This is just insanely efficient and yet perfectly quiet. A bit expensive though.

[ema]

Stats (yellow text in the right upper corner) shows a working engine but activeshade window remains black. If I change something in the scene, stats updates, but image remains black. If I switch to CPU RT, it works fine.

Specs are Vray 2.00.02, max 2011 x64, quadro 4000 GPU

A mate of mine did the test with the same scene, same setup (GPU etc.) and did worked fine.


I'm puzzeled by this issue ...

Here'a a screengrab of the problem.



Uploaded with ImageShack.us

Same issue here, vray 2.00.02, max 2011 x64 , gtx 580 nvidia v 263.09, v 260.99, v266.58, none of them working.

[vlado]

Have you tried deleting the .clbin file in your temp folder after installing different drivers?

Best regards,
Vlado

[digitalx3d]

Hmmm....well... I don't think I deleted the .clbin file after installing the new driver. But... for whatever reason, RT GPU seems to be working once again. I guess you could call this some kind of "inadvertent user error"... Somewhere I must have triggered some kind of unhappy emotional state in Windows, Max, or Vray and... well... I guess I've been forgiven. I wish I had some clue what I did to cause it or solve it. Oh well... not the first time it's happened and surely won't be the last!!