SSAO Pro - High Quality Screen-Space Ambient Occlusion

Is there a reason why the depth buffer would not work correctly in Legacy Deferred render mode with this image effect? It works fine in Deferred, but I have other assets that require Legacy Deferred.

 

Yes, I was having trouble identifying the problem earlier today when I took to twitter and posted this gif. I went through my image effects one by one and found that the SSAO Pro image effect was the cause of the shading issue. When I use the "Show AO" button in the inspector I see large, strangely shaded polygon faces that change according to view angle on all geometry in the scene other than my terrain (I am using the RTP terrain shader which works best with Legacy Deferred).

EDIT: I'm not sure what happened, but the issue appears to be gone now. I will report if I find any more anomalies.

 

Please help! I get the following errors with SSAO Pro:

"Assets/SSAO Pro/Scripts/SSAOPro.cs(14,2): error CS0246: The type or namespace name `HelpURL' could not be found. Are you missing a using directive or an assembly reference?"

"Assets/SSAO Pro/Scripts/SSAOPro.cs(14,2): error CS0246: The type or namespace name `HelpURLAttribute' could not be found. Are you missing a using directive or an assembly reference?"

I use Unity 4.7.

 

Yeah, they even explained why they used 4.7 instead of the planned 4.6.10. It's so stupid one can't write #if UNITY_VERSION < 5 or so...

Oh, and thanks for that patch!

 

If it's any consolation, pretty much all assets "broke" because of the new platform define

 

Thanks, that fixed the problems!

 

are you able to exclude layers from this?

 

Is there anything I can do in my shaders to exclude them from the AO without causing any visual errors? Like for cloth?

 

It's a cloth shader, but I can see harsh AO on the polygons as it's blowing in the wind

 

It's a cloth shader I've written, it's two sided yes. It happens on both sides, but it's probably because the polygons are so large compared to your average model.

 

The shader is working perfectly aside from the AO, this is my first issue with it. I've heard the geometry doubling method tons of times, it's not worth it with simulated cloth.

We are using deferred, 5.3

 

I hear this works with Android, but its slow from what I read from a review..I was wondering if this is an issue...or just a set up issue from the user.. Has anyone else used this with mobile only.. Thanks for any input..

 

Running any kind of SSAO effect on mobile is a waste of resources.

 

I seen your post and thought what is he talking about...

Wrong asset.. I was looking at them both at the same time

https://www.assetstore.unity3d.com/en/#!/content/44845

This is the one I was looking into ... my question still stands for that asset, I can post over there if needed.
PS: But I have used Post processing effects with mobile with very little hit. You just need to use them properly, and use make sure your games is optimized properly.. So its not always a waste, most of the time I would agree.. I use very few..When I DO.. Certain shaders for water, caves etc, are in the same boat.. But I still use with very little hit.,.

 

Hi,

I have some questions / problem with using SSAO.

The attached image shows an example cube. The cube is made in 3ds max ( 10m*10m*10m ) and a shell modifier on top ( 0.3m inside shell ). So it's like a simple room with walls. Export as FBX, import with scalefactor 1 - no mesh compression.

I got a camera rotating around that cube and this produces flickering edges when using the SSAO in unity 5 ( the dark areas on the cube face ). The dark areas are there even when the camera is not moving. It's sure coming from the inner faces - but i can't ged rid of it..

The flicker areas disappear when put the SSAO Distance up to 10 - but then i don't have AO at all...Reducing the Radius doesn't work...Bias also... i'm a little bit lost. Any ideas?

 

Make the camera clipping planes fit the scene tighter (reduce far- and increase near clipping). Does that help?

 

YES!!! Thank you very much - reducing the near clipping plane was the right thing to do

 

Hi, I bought SESSAO but it doesn't work for my game, running around in forests all the trees have a white glow trailing them which is really uneasy on the eye, and once you get an aircraft and start flying around, things just get even worse.
I can already see that the OP answers here on the forum which is already a huge plus compared to SESSAO, but I need to know if speed trees are a problem for this shader as they were for the other one? =)

 

You might need to give more specifics for @Chman to be able to give an answer. (I think) all SSAO effects work with the depth buffer and alpha blended materials don't write to the depth buffer so there can be artifacts wherever you use alpha blended materials. Maybe also cutout materials with MSAA? Which shader do you use for the foliage and which rendering path? Can you provide a screenshot with and without SESSAO? Does SESSAO have any temporal component? If so it might be as easy as turning that off. Does the free SSAO that is in the unity Standard assets give you the same problems as SESSAO?

 

I can't answer much of that as I don't know, but as you can see from this screenshot (the settings have been exaggerated as it's far more pronounce when animated and not as much when it's just a single image), the effect happens from the mesh trees on terrain background. So there shouldn't be any alphablending going on, nor cutout effects or anything like that.
The rendering path is Deferred.

I don't know what a temporal component is, nor do I know if SESSAO has such a thing, however it's not a name I've come across in working with SESSAO.

I haven't tried it with the standard SSAO shader, but I can test it tomorrow.

 

The image is in the post above ^

The rendering path Deferred
I can check the tree shader tomorrow, however these are standard asset tree's with the default shader the standard assets use, I don't know off the top of my head what shader it is though =)

I'll have to check out the standard SSAO asset when I get to my computer tomorrow then. =)

 

I'm receiving the following error when building with Unity 5.3.2p1:

 

Target platform is Mac OSX, Architecture Universal. Auto Graphics API for Mac enabled. Using SSAO Pro 1.6.

 

Whoa @Chman, congrats on joining Unity!

 

Nope, I'm on 5.3.2p1. So that error results in running on Metal? That's strange, because on the Unity title it shows OpenGL 4.1.

 

Is anybody else getting streaking along the right side of their image in Unity 5.3.2?


It looks like the SSAO is alright, but the underlying image stretches.
Also, it works with the Deferred rendering path, just not with the Forward rendering path:
Here it is in Deferred:



More info: It looks like the streaking goes away if you disable shadows (in the forward renderer). So it seems like it has something to do with shadows....

Thanks,
Ocean

 

Would like to know if you could add an option to the settings that allows to invert the AO to achieve a hdr-colored "glowing" effect similar to this:



What I do not want is to invert the whole renderoutput like an invert-posteffect.

 

That sounds like something that wouldn't be too hard to do yourself. Have you tried playing around a bit with the (shader)code? It can be a lot of fun to customize such assets and you'll learn a bit along the way too.

 

Right, but I don´t know about writing shadercode and unfortunately don´t have the time to dive into it....

 

Perhaps even Lerp it with a parameter, shouldn't cost much more and be nicely tweakable in game.

 

Looks like it's a known bug in 5.3, that's already been fixed in 5.4
Talking about it here:
http://forum.unity3d.com/threads/smeared-objects-above-horizon-line.381078/#post-2497210

 

The SSAO effect is rendered upside down in 5.4b4. DX11, SSAO Pro 1.6. Is it a known issue?