Fog Volume 3

Hello!

Thanks for your great plug-in.

I'm trying to fix a problem with FogVolume and downscaling in our project where the transparency is broken as soon as we turn on downscaling in the FogVolume Renderer. I saw that the problem can be prevented by turning off HDR (which is not an option in our project). Since we have performance problems, turning on downscaling would be be very useful.

You can see the problem in the following screenshot where the black should be transparent:



This is how background should be (instead of black):




We are on Unity 2020.3.17 (legacy 3D engine). Any idea ?

Thanks!

 

Do you plan to release a version of this asset that is compatible with URP?
Or are you planning to sell it as another asset?

 

I like this asset so much, goes well with music tracks I make, sample:

 

Agreed! And great track! Did you sculpt that space with primitives?

 

Thanks
For info: Track was made using only Figure and Beatmaker 3 App for IOS on Ipad (that in itself is so cool! that it is even possible), I played around with one of the Fog Volume sample scene parameters to get the colours and details etc. I still want to explore so much with Fog Volume, like different earth bound clouds etc. I wonder what else is possible!

 

Did your GPU lift off?

 

Hi, not really (I have a 1060 so not that good), you can set the quality of the asset which helps a lot

 

I noticed some slicing, which setting did you tweak to get such sharp edges at decent framerate?

 

I think the slicing is minimal, I'll have to dig up the project and remember which options it was, I think there is a quality setting, cannot remember exactly now. Another trick I have been thinking of is screen record the scene that is on a very high quality level, moving very slowly, then make a video of that but playing x2 speed, could be interesting. The other option is to buy a HUGE GPU

 

Hello, I have a problem, as shown in the figure under unity 2021.3.10, and FV cannot operate normally

 

Does it work only with camera ? I bought it but I can't use camera in my work so, it just doesn't work ?

 

Something broke in 2022.2: the asset will work correctly in editor/play mode, however it won't be displayed in build.
I tested on a fresh install/empty project, building demo scenes and got the same result.
The scenes are built correctly (no errors)
It used to work just fine till 2022.1.24 (the latest version before official 2022.2 released)

Any clue how to fix it?

 

First of all, I love this asset! Making cool volumetric nebulas is so easy and awesome looking! I noticed in the readme that since Unity 2019 VR no longer works...I would like to test this in some newer VR headsets, any timeline when VR will work again?

 

Hola David,

I'm having issues with terrain draw instanced. I don't understand how I need to change render order of fog volume 3, so that the fog properly appears behind terrain, and not always on top.

Is it something I need to change with terrain materials, don't they write a?

Thanks for any help!

 

Last version tested was 2021.2.14
Testing now 2022.2 and yes, it is broken '-_-
No errors, no logs, no clue. I've spent a few hours debugging and fixing minor (new) errors, throwing debug messages to the log file but all the checks I've done outputs a correct result. I think that critical data is not being sent to the material. Some values work (color, light direction...), but shader variants seems that are not being activated, although my tests say that they are enabled.
No shader keyword works in the build, all I get is a flat uniform fog.

Code (CSharp):

1.  if (FogMaterial)
2.             {
3.                 if (EnableGradient && Gradient != null)
4.                     FogMaterial.EnableKeyword("_FOG_GRADIENT");
5.                 else
6.                     FogMaterial.DisableKeyword("_FOG_GRADIENT");
7.  
8.                 Debug.Log("_FOG_GRADIENT " + FogMaterial.IsKeywordEnabled("_FOG_GRADIENT"));

Output in Player.log: _FOG_GRADIENT True

I guess I'll keep trying some more, but if I can't find the problem, that's it.

 

Well, at 4 in the morning I can say it is solved. It was indeed a problem with the shader keywords. There is a workaround that is already included in the public version. Buggy, but it works. I'm polishing it.
Scroll down in the inspector to the bottom. And enable "save materials". When it fails, disable and enable again FV object.

That option will be mandatory from now on, with warnings, and lights flashing to let the user know that this option has to be active before building.

Side effect: compilation time will improve A LOT.

 

Okay, this is going well. This will be the new method to save the temporal material to disk.

Saving to disk will ensure that all the required keywords/shader variants are compiled and available in the build.

Test done and everything working in 2022.2.2f1

Update will come soon.

 

Created a new style for the buttons

 

By mistake, I uploaded the shader with collision disabled. Go to FogVolume.shader, find the keyword _COLLISION and uncomment it.

 

Added an option to make the gradient affect the ambient color

 

@DavidMiranda Amazing, thank you so much!

 

You can use an additive primitive for that. Instead of just using the whole volume, you can use a custom box with adjustable edge fade.
Check the scene static volumetric shadows 2 to see an example of that

 

Done. 3.4.5 is ready

 

thanks a lot, will check it in 2 weeks!
but first i need to backport all my little changes and performance improvements first, so i can then patch your latest version with it :-D

 

Hello, I am running Unity 2022.3.5 (I also tested on 2021.3.28) and Fog Volume 3 3.4.5. The fog looks normal in the editor but in the build it's not rendering properly as shown in the screenshots. Any idea what might cause this?

 

Hi,
The last supported version is 2022.2.2f1. Make sure to use the new feature "Save temporal material".

 

Ah Thank you for the video. I had that checked but I didn't have a camera in my scene since I spawn my players so the dialog box wasn't coming up to prompt where to save the material. I just needed to add a camera, save the material and then delete the camera again.

Thanks!

 

How to exclude objects, like a house from hdrp volumetric fog?

And how to follow the fog my terrain?
Lets say I have a custom terrain that has a sinus on it?

 

You can create a void space inside a textured fog (using noise or gradient) with primitives. Check the scene "Interior primitives". That scene is using additive boxes. For your case use first a large additive box and subtractive primitives inside.

As for the vertex displacement, it is not supported.

 

Any ideas how one would hack this? Use the height map of the terrain, perhaps? How/where to change your code?