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My Global Illumination tests

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  12:14:05  17 February 2012
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Derranged
Senior Resident
 

 
On forum: 04/12/2010
Messages: 1009
Haha, thanks. Now I have to tweak it a fair bit to get as much as I can get out of it.
  15:03:43  17 February 2012
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ket
Senior Resident
 

 
On forum: 01/13/2006
Messages: 1432

---QUOTATION---
Then why when I have my old 5770 I was not getting this problem?

Well I didn't say it's not your GPU.

Try this, maybe it helps (although it's for CS):

https://www.gsc-game.com/index.php?t=community&s=forums&s_game_type=xr2&thm_page=5&thm_id=16790&sec_id=19

EDIT:
Also, have you tried uninstalling all GPU drivers and installing some older driver version? I had several issues with my two last graphic cards and in both cases it turned out that the latest drivers where not the best (at least not for the games I needed them to work with); so checking out a few (not only one) older drivers solved my issues - weird but true

You know what, it actually was the SSOA... Except I had to turn it off in the Shaders file and not in-game. Thanks!
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SSAO is buggy as hell in SoC because its a old build when CS was still in development. Your 6870 only requires 150w of power which is drawn from the 12v rail, your Corsair unit has 54A, which apparently is dragged down to 40A, probably because of the split rail configuration or something similar if it is dragged down. The unit should have plenty of oomph for your system and have room to spare. Even according to Thermaltakes system calculator you only need a PSU of around 430w.
http://www.thermaltake.outervision.com/Power
  15:50:25  17 February 2012
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Derranged
Senior Resident
 

 
On forum: 04/12/2010
Messages: 1009
Well, when I went to the store and I saw that PSU for that price I grabbed it not knowing what it was. Then I got home to put it in the case and then noticed it was a secondary PSU but whatever, my system runs fine how it is.
  16:42:21  17 February 2012
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Meltac
messing with code
(Resident)

 

 
On forum: 01/21/2010
Messages: 1519

---QUOTATION---
SSAO is buggy as hell in SoC because its a old build when CS was still in development.
---END QUOTATION---



That's a well-known one. However, I still wonder why/how it makes some GPUs refuse to work at all - I would have expected some glitches or rendering misbehavior upon runtime, but not that just a bad shader implementation can make some GPUs die while others work like a charm
  19:05:34  17 February 2012
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ket
Senior Resident
 

 
On forum: 01/13/2006
Messages: 1432
I don't think its anything to do with SSAO specifically, just the way certain GPU architectures are. Even that explanation still raises some questions though especially as I've run SSAO on a lot of different nvidia and ATi cards without any issues.
  06:47:41  18 February 2012
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Derranged
Senior Resident
 

 
On forum: 04/12/2010
 

Message edited by:
Derranged
02/18/2012 12:04:26
Messages: 1009
Awesome, I tweaked the shaders just a little bit and so far I have been able to get a massive difference!

Old: http://dl.dropbox.com/u/26574229/Images/Photos/XR_3DA%202012-02-17%2014-32-08-05.png

New: http://dl.dropbox.com/u/26574229/Images/Photos/XR_3DA%202012-02-18%2014-42-15-53.png

I know I should've gotten a picture of the old shaders in that area but oh well.. Trust me when I say it is better.

Thanks guys on the help.

EDIT: Out of curiosity I disabled this line: #define SSAO_TEX_CONT

And then turned the main SSAO back on and it worked, but it looked the same... Maybe that line above was the problem. I did notice that after I disabled it the game became "Less dark" as stated in the note after it. Very strange...
  23:36:25  19 February 2012
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Meltac
messing with code
(Resident)

 

 
On forum: 01/21/2010
Messages: 1519
No problem, dude

Would be interesting though to know what that SSAO_TEX_CONT thing does and why it can make the game crash on some GPUs...
  04:11:01  20 February 2012
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Lyoko774
Senior Resident
 

 
On forum: 04/09/2007
Messages: 170

---QUOTATION---
No problem, dude

Would be interesting though to know what that SSAO_TEX_CONT thing does and why it can make the game crash on some GPUs...
---END QUOTATION---


It artificially increases texture contrast, but it's a bit odd that it seems to kill certain GPUs
  22:09:46  2 November 2013
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Don Reba
Bishop and Councilor of War
(Moderator)

 

 
On forum: 12/04/2002
Messages: 11725
Too bad all the pictures in this thread have since been taken down.
  00:20:36  4 November 2013
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Storm Shadow
A machine, a Shadow Machine.
(Resident)

 

 
On forum: 11/14/2007
Messages: 1430
@Ket, would you be so kind as to give a description in your own words of what each of the r2_gi_xxx cvars do?

Also, would you kindly post your GI settings that you've now settled on?

Regards,
 
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