► Vertex Ambient Occlusion Generator ◄

No it has not.



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Hallo,
I have a small problem with the Generator, as you can see in my (generated) meshes not everything gets occluded correctly (see left upper side and right bottom side):



This is (probably) because my geometry is generated out of several chunks, as you can see here:


(The scene actually contains 5 meshes.)

Is this behavior to be expected, or a bug?

Regards,
ratking

 

Package contains two solvers for Ambient Occlusion calculation:
1. Raycast solver - works only with selected(one) mesh and can not interact with other meshes in the scene.
2. Occlusion Render - Can interact with all meshes in the scene (controlled by Layer Mask parameter).

Which solver are you using?



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Ah I see. I use Raycast, because it looks ...not so good with Occlusion Render. :-/

 

Solvers use different algorithms and final result may be different (especially with such low-poly meshes).
If Raycast solver produces 'better' result use it instead. If several meshes must be included in AO calculation, first group gameobjects in hierarchy by putting all of them under one parent transform and then select that 'parent' as source object and generate AO with Combine Into One Mesh option enabled.



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I'd like to not combine the meshes, because I separated them in the first place. I guess I need to find another solution then.

 

I could have overlooked this in the description, but is or will there be support for WebGL? Thanks.

 

It works with WebGL, just do not forget to include Per-Vertex Ambient Occlusion shader into Always Include Shaders array (Main Menu -> Edit -> Project Settings -> Graphics)



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Hi

I have tried to the FBX file output from Blender.
But it has gotten to the warning.

"Source object 'model_name' has no mesh data."

Do this tool can not be used in the FBX file?

 

Supports all type of meshes. Seems you are doing something wrong. Can you show screenshot?



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ok, I've taken the gif video.

 

Add mesh to the scene (Hierarchy window) and drag it from there.



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I tried also it. It was the same result.
If I send a model to you, would you check it?

 

Sure.



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Thx.
I sent you an email.

 

v1.4 released
• Added mesh compression option. Generated mesh file size can by smaller about x5 times.
• Mesh Asset Name format option replaced with more intuitive Skip Similar Meshes option.
• Improved Occlusion Render solver.




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Hi!
I have a large outdoor environment with a lots of objects. Can you use this tool to generate vertex ao on the ground (wich is a model not terrain) directly in the scene, taking all the objects in the scene in consideration when calculating?

 

Yes, it can. But quality of baked AO depends on mesh vertex count.
AO is generated per-vertex and saved inside mesh vertex color.
If ground plane is a simple mesh with just a few vertices AO result may even not be visible.



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Quick question. Everything is working well in the editor, but once I build my game, the One Directional Light shader doesn't seem to work.

In the logs, I see the following errors:
WARNING: Shader Unsupported: 'Hidden/VacuumShaders/Vertex Color/Vertex Lit/Opaque' - Pass '' has no vertex shader
WARNING: Shader Unsupported: 'Hidden/VacuumShaders/Vertex Color/Vertex Lit/Opaque' - Setting to default shader.

Suggestions on what I should do to solve this problem?

 

Seems Unity shader compilation bug, or something else.
Found plenty of them:
http://answers.unity3d.com/questions/1071198/please-help-me-resolve-these-errors-related-to-sha.html
https://forum.unity3d.com/threads/unsupported-shader-errors-in-chrome-and-firefox.351915/

At my side there is no compilation problems.



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Thanks Arkhivrag. My build compiles fine, the issue arises when running the executable. I'm getting the same problem in a newly created Unity project, version 5.4.1f1 with nothing besides your tool and a couple test models. What version of Unity are you running it against? Perhaps there is a versioning issue. If all else fails, I suppose I can reinstall Unity and see if that fixes anything.

 

Using latest Unity 5.3.x and 5.4.x versions.
I tend to think it is hardware or driver issue. You can try compiling shader inside editor and make sure it has no bug.



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I am getting this error:

Shader error in 'VacuumShaders/Vertex Color/Unlit': undeclared identifier 'unity_ObjectToWorld' at Assets/VacuumShaders/Vertex Color Shaders/Shaders/Unlit/../cginc/VertexColor_Unlit.cginc(103) (on glcore)

 

You are using version for Unity 5.4
Download version for Unity 5.3 using Unity 5.3 editor.

1) Remove asset from the project.
2) Clean Asset Store cache:
PC - C:\Users\[Your Profile Name]\AppData\Roaming\Unity\Asset Store
MAC - "~/Library/Unity/Asset\ Store".
3) Now, download package from the Asset Store.



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Ok, thanks. I'll try that.

 

I'm hoping to purchase this asset to use for my project. I have a project with a room full of tools (table saw, band saw, work bench, shaper, jointer, dust collector, etc) and I want them to have the clay look of ambient occlusion. If the focus in the scene happens to be on one of the tools, then the dirt pass will be switched to full color material for that tool. In the middle of the room/workshop is a chair with the amazing wireframe shader (awesome), and hopefully these will play nice together.

Platform is iOS and hopefully Android.

My question is do I gain any benefit from using this AO asset in Unity vs rending a dirt pass in my 3D modeling app (modo) and using the saved texture for the ao in Unity? Keep in mind I will have diffuse textures for the tools to render when in focused mode.

I was hoping performance-wise it would make sense to use this asset rather than having two textures for each asset. What do you think?

Thanks for awesome support!

 

Of course, generating custom AO map inside 3D modeling will have better visual result.
This tool generates AO per-vertex. And it's baked quality (saved inside vertex color) depends on mesh vertex count.



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Does this work on a multi model scene? Does it work for inside architecture (like a living room), or even a large outdoor forest?

 

Yes.



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Hello!
I am trying to use the editor tool with 2017.1.0f3, but no matter what source object I choose, nothing happens and I get "Generating failed Object reference not set to an instance of an object" error message.
The runtime demos work just fine.

 

You are using tool for Unity 5.4 inside Unity 2017.1
Remove plugin from the project, clear Asset Store cache folder and download fresh version from the store.




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Thank you for swift response, I will try this.

 

hi,@Arkhivrag ,I want to use your plugin for my runtime project
but here are some confusing
1:the performance is very slowly ！！！compare with POLM
2:are there some asynchronous generate funcition? because use these code below



mesh.colors = Generator.Generate(gameObject, ambientOcclusion, indirectLighting,OnGenProgress);
GetComponent<MeshFilter>().mesh = mesh;


private void OnGenProgress(string _name, float _value)
{

Debug.Log(_name+""+ _value);
}

because you use main tread,we can't trace the progress while generatING AO,the whole project was freezing.。。

 

Plugin uses Unity API for generating AO and uses main thread. No asynchronous methods available.
AO generating speed depends on 1) Mesh vertex count 2) Solver type and their options.



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HI,ark,here I compare with some other plugins at assets store.

left POLM right Per-vertex

it's seem per-vertex have no shadow


this is per-vertex detail without shadow



here is other v-ray detail

 

First of all, thanks for the great asset.
It is giving all our objects a really nice look and more depth overall.
But I really would like to see an option to generate more than one Material from the original mesh.
Its always really annoying to replace all my materials in a multi material mesh.

 

Hey I just picked this up and i'm getting errors in unity 2017.4:

Code (CSharp):

1. `Generator' does not contain a definition for `Generate'

Any idea how to fix?

 

Just updated for Unity 2017.4 and Unity 2018.2
Download new version and make sure there are no other script compilation errors, otherwise plugins will not be imported and you will receive such errors.



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Hi,
I just bought your asset but it doesn't work.
When I try to bake an object with the included editor window, all I get is this error:

Code (CSharp):

1. Generating failed :(
2. UnityEngine.Object UnityEditor.PrefabUtility.GetCorrespondingObjectFromSource(UnityEngine.Object)
3. UnityEngine.Debug:LogError(Object)
4. VacuumShaders.AmbientOcclusionGenerator.AmbientOcclusionGenerator_EditorWindow:Draw_GenerateButton()
5. VacuumShaders.AmbientOcclusionGenerator.AmbientOcclusionGenerator_EditorWindow:OnGUI()
6. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

I'm on Unity 2018.3.0f2

-EDIT: I have tested it with the example meshes. Same error.

 

However, the script examples do work. But I don't know how to generate a full hierarchy of meshes. It only seems to deal with a single mesh, not a whole gameobject with it's hierarchy of childs.
Also, the output is a color array, so it's supposed to be only for a single mesh?
I can feed it a single mesh at a time, but will this take into account the surrounding meshes of the same gameobject?

 

Confirm bug in 2018.3f, working on fix.
Package comes with two solver, one takes scene objects into account for AO calculation, another one - no.

[EDIT]
Package has been updated.



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hello, i am working on a run time level editor for a low-poly webgl game,so my question is does this ambient occlusion will make serious impact on the game performance? i am not sure if the ao get instantly applied or is calculated every frame?

 

In run-time AO is calculated as Color array, you can assign it to a mesh vertex color later or use otherwise.
As it is just a method, you can use it any amount of times you need, just once with mesh generating or on every frame if you need it.
Performance and quality is proportional to the mesh vertex count, ray count used for AO, or objects mesh interacts with. Everything is controllable from settings.



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First up just wanted to say what a great asset this is. I'm building a mobile game with procedural generated meshes meaning I can't bake AO and SSAO isn't really an option so it's perfect and works perfectly.

Only thing I've noticed is that when using a project with LWRP the Occlusion Render and skybox indirect lighting option both crash Unity (18.3.0f2). I'm assuming this is something to do LWRP and render textures?

 

Already fixed, download new version.



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Blimey, that was quick! Just updated the package and Unity 18.3.12 and working perfectly. Thanks!

 

Hello. I have a very large location size in the scene. Standard means Unity give an error for lack of memory even at the minimum settings, and he considers it four days.
Does this asset cope with calculating large locations?

 

Had no problems with "large locations" before.
What is "large"? Size of a mesh or vertex density?



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Does this work with skinned meshes? I need this for baking AO for my hair.

 

Skinned meshes - yes.
Blend shapes - no.



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