Godot: SSAO graphical issue with glitchy lines
Operating system or device - Godot version:
OS: Linux Arch 64
Video: Intel HD Graphics 5500
Godot version: Godot 3.0 custom self compiled from 6d0568d
Issue description:
SSAO draws glitchy lines. Camera.Environment with only ssao enabled. Same in editor and game-mode. There is shot without blur:
honix
All 22 comments
same here on Intel HD 3000
khairul169
on 10 May 2017
Does someone reproduce this issue on Windows or macOS?
akien-mga
on 15 Jun 2017
I can reproduce this on Intel HD Graphics 620 on Windows 10.
This happens regardless of the SSAO settings used. This bug also does not happen on NVIDIA graphics on Windows 10.
Calinou
on 15 Jun 2017
Same hardware as Calinou, simple can't reproduce :\
reduz
on 15 Jun 2017
Notebook HP 340 g1 (Intel Graphics HD 4400) can reproduce
PD: Godot alpha Unofficial Build 13 June in general is extreme slow in notebook (3 FPS approx)
Shockblast
on 16 Jun 2017
The screenshot above doesn't seem to display artifacts related to SSAO, but rather artifacts related to shadow bias being set to a slightly too low value (a mistake on my side while making the demo project).
PD: Godot alpha Unofficial Build 13 June in general is extreme slow in notebook (3 FPS approx)
More recent builds should be much faster, as the OpenGL error spam was fixed on Intel on Windows.
Calinou
on 16 Jun 2017
The screenshot above doesn't seem to display artifacts related to SSAO, but rather artifacts related to shadow bias being set to a slightly too low value (a mistake on my side while making the demo project).
wops! (i try same settings from screenshot adove).
Shockblast
on 16 Jun 2017
ssao seems fine in those pics, the scanline effect is indeed due to shadow
bias
On Fri, Jun 16, 2017 at 4:55 PM, Shockblast notifications@github.com
wrote:
The screenshot above doesn't seem to display artifacts related to SSAO,
but rather artifacts related to shadow bias being set to a slightly too low
value (a mistake on my side while making the demo project).wops! (i try same settings from screenshot adove).
[image: ss]
https://user-images.githubusercontent.com/5357217/27242532-ac2fa1aa-52ab-11e7-9521-0487a1822396.jpg—
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reduz
on 16 Jun 2017
Does that mean the issue is closed?
HummusSamurai
on 5 Jul 2017
I will recheck it today, and post a screenshoot.
honix
on 5 Jul 2017
Same problem
OS: Linux Arch 64
Video: Intel HD Graphics 5500
Godot version: 3.0 July 4 nightly build
project - ssao-test.zip
honix
on 5 Jul 2017
I tested on an Intel 520 and it works fine... wish I had older hardware to
test..
On Wed, Jul 5, 2017 at 7:02 AM, Fyodor Shchukin notifications@github.com
wrote:
Same problem
OS: Linux Arch 64
Video: Intel HD Graphics 5500
Godot version: 3.0 July 4 nightly build
[image: ssao-s]
https://user-images.githubusercontent.com/11596541/27859670-2be235d6-6182-11e7-9527-67d715e71617.png
project - ssao-test.zip
https://github.com/godotengine/godot/files/1124241/ssao-test.zip—
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reduz
on 5 Jul 2017
Arch Linux, HD4000 (Mesa 17.1.4) also getting the scanline effect in Calinou's example project (and in the Material Tester demo) but no other glitches. Increasing the SSAO bias setting indeed reduces or removes the effect, but the bias setting shouldn't be hardware/driver specific, should it? Because some people can run the Material Tester demo without the scanline effect and tweaking the bias setting.
@honix Could you please upload your example project? I would like to try if I also get the glitchy lines.
[edit] nevermind, i didn't see the link ;)
[edit2]
I can also reproduce the red lines from honix' example. I don't have them in the editor, though, but only when actually running the scene. Would be nice to have someone with the same hardware, but an older version of mesa to test this (any Debian users here?)
Don't know if this is helpfull, but this is how the SSAo bias setting affects the issue:
novemberist
on 6 Jul 2017
Should be fixed in current master. Could you check that ?
groud
on 23 Aug 2017
Looks fine now on my HD4000. Let's see if it's also fixed for other intel gpus.
novemberist
on 23 Aug 2017
Are those red clouds of dots expected though?
akien-mga
on 23 Aug 2017
I think @honix used these exaggerated ssao settings (and the red color) on purpose in his example project for better visualization of the issue.
novemberist
on 23 Aug 2017
Are those red clouds of dots expected though?
I'm not the expert but I'd say yes. The really low value for the bias may cause that.
groud
on 23 Aug 2017
ssao colour was changed here , blur option was turned off(blur has no slider) to have such ssao output
gamergamesz
on 23 Aug 2017
Hm.. Can't build master or 591a892c to test. Maybe there is some working builds?
editor/editor_icons.cpp:1:10: fatal error: editor_icons.h: No such file or directory
@honix Run git clean -fX to remove your build artifacts and start from scratch.
akien-mga
on 23 Aug 2017
@akien-mga fresh git clone do the job.
@ Intel HD Graphics 5500
It looks good for me. Blur option successfully reduces this noise.
I think issue is closed!
honix
on 23 Aug 2017
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Most helpful comment
@akien-mga fresh
git clonedo the job.@ Intel HD Graphics 5500
It looks good for me. Blur option successfully reduces this noise.
I think issue is closed!