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H-D-AO problem on Radeon GPUs

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  18:17:31  20 September 2015
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lowenz
Augmented Technician
(Resident)

 

 
On forum: 04/15/2007
 

Message edited by:
lowenz
09/20/2015 18:18:18
Messages: 332
H-D-AO problem on Radeon GPUs

http://s14.postimg.org/9lcqnziqn/Original_HDAO.jpg

No problem with H-B-AO.
With NVidia GPUs the problem is very less pronounced.
Can it be fixed in the next SRP release?
  19:26:11  20 September 2015
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RK Roadkill
Merc
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On forum: 05/27/2011
Messages: 1296
I have AMD but never experienced that.

HDAO is for amd and HBAO for nvidia, right ?
  19:29:44  20 September 2015
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lowenz
Augmented Technician
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On forum: 04/15/2007
Messages: 332

---QUOTATION---
I have AMD but never experienced that.

HDAO is for amd and HBAO for nvidia, right ?
---END QUOTATION---


Not exactly: that is a myth.

HDAO uses compute shaders.
HBAO doesn't.
  19:38:52  20 September 2015
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Charcharo
Senior Resident
 

 
On forum: 06/23/2009
Messages: 1175
So... HDAO is better in most games that have these options?

Then what is HBAO+?
  20:00:00  20 September 2015
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lowenz
Augmented Technician
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On forum: 04/15/2007
 

Message edited by:
lowenz
09/20/2015 20:29:12
Messages: 332

---QUOTATION---
So... HDAO is better in most games that have these options?

Then what is HBAO+?
---END QUOTATION---


*HDAO is better performing if you have compute shader support in your GPU. Otherwise (D3D9 GPUs) it is working but is more cumbersome than HBAO.

*HBAO+ is a fullframe resolution HBAO (and I think you can enable it in CS and COP with "r2_ssao_half_data off" -> OFF). It doesn't need compute shaders support to be optimized.

*HDAO and HBAO create different indirect lighiting shadows. So you can't compare them.

Problem is: HBAO is working correctly in CS with the last drivers, but HDAO only on NVidia GPUs. With my Radeon HD 7850 the strange result is above.
  15:14:17  21 September 2015
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lowenz
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On forum: 04/15/2007
 

Message edited by:
lowenz
09/21/2015 15:14:35
Messages: 332
Maybe it's better to move the discussion to the bugs subforum.
Sorry.
  16:38:30  21 September 2015
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RK Roadkill
Merc
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On forum: 05/27/2011
Messages: 1296
Hey I have 7850 HD too, I haven't seen anything like that...
  12:23:00  22 September 2015
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lowenz
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On forum: 04/15/2007
Messages: 332
Maybe it's my dying GPU
  15:09:52  12 February 2016
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_NightRider_
(Senior)
 
On forum: 04/03/2012
 

Message edited by:
_NightRider_
02/12/2016 15:10:43
Messages: 63
Not dying gpu at all!!!


---QUOTATION---
Maybe it's my dying GPU
---END QUOTATION---



In clear sky the game simply dont know wich computing method to use...
So they simply disable HDAO OR HBAO and let the shaders do their job...

In your user.ltx change your with these below and it will fix it, I have the same issue!!!

r2_ssao st_opt_high
r2_ssao_blur off
r2_ssao_half_data on
r2_ssao_hbao off
r2_ssao_hdao off
r2_ssao_opt_data off
  21:22:29  21 February 2016
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lowenz
Augmented Technician
(Resident)

 

 
On forum: 04/15/2007
Messages: 332

---QUOTATION---
Not dying gpu at all!!!

Maybe it's my dying GPU

In clear sky the game simply dont know wich computing method to use...
So they simply disable HDAO OR HBAO and let the shaders do their job...

In your user.ltx change your with these below and it will fix it, I have the same issue!!!

r2_ssao st_opt_high
r2_ssao_blur off
r2_ssao_half_data on
r2_ssao_hbao off
r2_ssao_hdao off
r2_ssao_opt_data off
---END QUOTATION---


With HBAO there's no problem at all.....
 
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