Fog of War

@stu_pidd_cow , Oh alright fair enough. Then what about this?

"
Also enabling the snap to pixel center seems like it is forcing everything to be under partial fog..
Disable output to texture also seems to be doing the same thing.
"

I used the enable snap to pixel to try and get reduce the flicking, because that is the apparent renamed option. But when I enable it, it looks like everything is under partial fog.. (or does weird thing) This does not happen with older version.

Also, I am very interested to find out the difference between hardware and software method, in terms of visual and performance..

 

Yeah, there's definitely a bug there. I've fixed it up, but I'm not sure if it's the issue you're talking about. If you send me an email, I can give you a unitypackage to test.

There's a table in the documentation which should give you the gist of it. Generally though, hardware is still missing some features, but should be much faster if you have a large resolution map and/or lots of units. It's still kinda experimental, so I'll be working on the performance some more.

 

Update: This was solved when I reimported the code, and when I created my own level. The demo level still doesn't work.

I am using unity 2019.2.9f1 and the Post Processing Stack v2. When I load the PPSv2 example scene i is see the fog, but it's not aligned with the rest of the map. Is there a fix for this?

Thanks in advance,

Tom

 

That error message is just there because the demo doesn't let you change teams in the PPSv2 (something that I'm working on), but everything else should be fine.

So reimporting fixed the fog not being aligned?

 

Hi @stu_pidd_cow
Do you have an ETA for the HDRP Update?
Thanks

 

HDRP is still sorely lacking in information for developing custom processing. Hopefully with 2019.3 coming out soon, I'll be able to get it done. Unfortunately I can't give any reliable ETA.

 

Hi @stu_pidd_cow,

I am waiting for this update too. I want to use it in URP. Maybe you can use the VolumeComponent component of the new URP? https://docs.unity3d.com/Packages/c...efinition@7.1/manual/Custom-Post-Process.html

 

Sorry for the late reaction. Yes, the reimport worked, thanks.

 

At the moment I am having a lot of trouble with the lack of documentation with both URP and HDRP's custom post processing. I have a thread up here, but it doesn't seem to be getting much traction.

 

Hi @stu_pidd_cow .

I was wondering if it is possible to save fog data managed by chunk manager.
It seems to remember the fogs some how, so I was wondering if there is way to save and reload the fog data so that when game loads save game, it can reload the fog data.

 

Hmmm yeah you're right. I'll put something in for that asap.

 

@stu_pidd_cow , I am currently trying to reduce the GC being generated by the FogOfWarTeam.Update function. occationally it generates like 1.3mb of GC.. any idea where this could potentially come from?

 

The only thing I can think of is if you are changing the resolution of the map. I just ran a profile and haven't been able to reproduce it, but I did find one memory allocation in the PPSv2 script (nothing to do with FogOfWarTeam though).
If you do a deep profile and sort by GC Alloc, you should be able to find roughly where it is. Or you can send me a dump from your profiler and I'll look into it.

 

I will look further, but I am thinking this could come from using chunk manager? And happens when chunk swaps the texture? Maybe?

 

There will be a memory allocation whenever a new chunk become visible, but I don't think memory should be deallocated, so it shouldn't trigger GC (at least not until the chunk manager resets the chunks).

 

Can anyone confirm if this plugin works for WebGL?

 

I have done only a bit of testing for WebGL, but it seems to work fine (I don't have a whole lot of experience with WebGL unfortunately). I have uploaded a downloadable version here if you would like to try locally.

 

Error 500 trying to download. Adding to my drive doesn't solve the issue. Can you upload it somewhere else? Thanks.

 

Hmmm yeah something went wrong with it. Try this instead.

 

Purchased it and working fine in WebGL. Thanks.

 

Any new Update planned?

 

I'm still battling with HDRP post processing. Hopefully I can have something up for this coming weekend, although I can't promise anything.

 

FogOfWar v1.21 has just been uploaded to the asset store! It should be available for download in the next few days. Here's what's in it:

• Added support for HDRP 7.1.8+
• Changed multithreading in hardware mode warning to an error
• Improved FogOfWarMinimap performance improvement a bit
• Added Save() and Load() to FogOfWarChunkManager
• Improved FogOfWarChunkManager memory display in editor
• Made FogOfWar shaders automatically included to the always included shader list
• Fixed "Look rotation viewing vector is zero" warning in 3D demo
• Added gizmos for FogOfWarTeam map area
• Added FogOfWarTeam.GetVisibleUnits()
• Improved platform support for demos
• Fixed 2D demo no putting chunks into a parent object
• Put in a hardware accelerated minimap in demo scene

I know a lot of people are still asking about URP/LWRP support, but this is the situation: Unity has completely removed support for the Post Processing Stack v2 and replaced it with the new volume system. For whatever reason, the new volume system does not have custom post processing capabilities, so it is literally impossible for me to get FogOfWar working with the current release of URP. If your project is heavily dependant on FogOfWar, I would recommend not upgrading to 2019.3 just yet. The moment Unity provides custom post processing support, I will be jumping in to get FoW working ASAP (which should definitely not take as long as HDRP support did). Sorry if this is an inconvenience to anyone!

 

Good job on the asset , thanks

We have multiple scenes and not all uses the fog of war, however being a default "Before post Process" the Fog of war will try to render , throw warning and display a gray screen whenever the team component is not set.

I added a Active bool in the class FogOfWarHDRP which allow me to disable it by default and add a Volume Override on the scene I want the FOW.

You should look into something similar in your next update to allow easy toggle between scenes.

(or maybe you have another way, and I'm all ear)

Best regards

JP

 

I will definitely put this in for next release. Thanks for pointing it out!

 

Hi,
Is Fog of War compatible with Unity 2019.3.5f1? Not even one of the samples working for me. I've tried HDRP and 3D with Extras but in HDRP there is no fog, in 3D with Extras there is nothing else but fog (not clearing). I've set up the 3D with Extras (added the two shader to the always include section) but nothing changed. I've also set up most of the HDRP but couldn't setup everything written in the user's guide.

 

Yes, there appears to be an issue with the latest release. I'm in the process of uploading a fix. Feel free to send me an email and I will give you the fix early.

 

I have uploaded a v1.22 of FogOfWar to the asset store. It's mostly just a small bug fix release. Here's what's in it:

• Fixed wrong inverse view matrix in legacy and PPSv2 shader
• Made fog color default to clear for HDRP to work around a unity bug where disabling the volume override doesn't work
• Made FogOfWar appear in root of volume overrides for HDRP

It could take a few days for the asset store to approve it, so if you need any of these fixes earlier, feel free to send me an email!

 

Thanks, I'm just starting the project and can live without fog of war for a week or two. As I see the fix will be in store by then so I can wait.

 

Hello,

I just purchased this fog of war asset yesterday and I am having some trouble trying to get it to appear in my scene, but I am also very new to it. I am using HDRP. Using Unity 2019.3.3f1. And HDRP package version 7.1.8. So far no fog of war is showing up in my scene.

However, I do see the fog of war appearing in the HDRP 3D sample scene that is provided with the asset. Which I'm guessing means I'm simply not setting up the structure of the system properly in my scene somehow.

What I have currently is a gameobject in my scene with the FogOfWarTeam script component on it like this:



Then, also, in my post-process volume in my scene, I have the Fog Of War HDRP volume component override.

When I hit "Play", no fog appears at all. So I'm not sure what I'm missing?

What is the main script or object that actually creates the Fog of War in the scene? I see the blue rectangle in my Scene view that I'm guessing represents the fog area (in the User Guide it says it should be a red box though).

Also, in the User Guide (for HDRP), it says to put a FogOfWarHDRP post process order (in the HDRP default settings in the project settings) in the "After Post Process" section. But it won't let me in that order, it says no custom post-process available. However in the "Before Post Process" section, it says the FogOfWarHDRP is available -- so that's where I currently have it -- in the "Before Post Process" section.

Also something to note, my ground/terrain is not at Y = 0. It is actually at a height of 100 in the scene. Would that affect the system at all? I also have it on a "Ground" layer (Layer 9) that is not the default layer or layer number. Would that be an issue as well?

In addition to this, I am using a lot of 3rd party assets and shaders from the asset store. For example I'm using the CTS 2019 terrain shader for my ground/terrain. I'm also using NatureManufactura trees and tree shaders, along with a lot of diffusion profiles. Would any of this be a problem as well?

Thanks for any info, and if you need more info from me I'd be happy to provide it as well.

 

You are right about the inconstencies with the documentation. I will fix this up asap.

Everything you have done is correct. Some things you can check:

• Does the map (the blue square) align with the map when you look at it vertically in orthographic?
  • You say you have the scene at 100 on the Y axis, maybe try bringing it down to zero just to make sure.
• Make sure your units have the FogOfWarUnit script on them and that their team index is the same as on the FogOfWarTeam component.
• Make sure the FogOfWarUnit shape is correct (you can see a visualisation of it in the scene view).
• Make sure your FogOfWarHDRP post process has the same team as on the FogOfWarTeam component.
• Make sure FogOfWarTeam's plane is set to XZ.
• You might want to turn off line of sight on you units (in case you put it on).

Let me know if you're still having trouble after all that.

 

A client is using this as an overhead map in an RPG, and it's working great so far. One other thing you might want to change in the manual is to mention GetTotalFogValues() in addition to GetCurrentFogValues() in the paragraph on saving and loading. In the RPG case, we want to save everywhere that the player has uncovered since starting, not just what's visible in the current frame.

 

Thanks, I'll definitely add this.

 

Hi Stu_pidd_cow,

I just recently tested all of what you suggested above in that list, and unfortunately I'm still not seeing any fog of war. Again, I'm a little perplexed, because it's working in the HDRP Sample scene you provided. But not in my scene.

Any other thoughts of what I might be doing wrong or perhaps might be missing?


Some of my thoughts are: The fog of war doesn't work with my terrain shader I'm using (called CTS terrain from the asset store). Or maybe I need a flat plane just underneath my terrain that your fog of war asset can raycast against (maybe the terrain has to be on a certain layer)? I'm just trying to guess though.


Thanks again for any help or suggestions. Also, if we need to I could private message you.

 

The only requirement for you terrain shader is that it writes to the depth buffer (which, if it's opaque, chances are it's fine).
Some more tests you can try:

• Add some other post processing effects to the same post processing profile to make sure it's picking up on the correct volume.
• Check the Volume Mask on the camera is the same as the layer on your Volume game object.
• Also check if you have any errors or warnings in the console.

If this still doesn't work, it might be worth throwing everything in the sample scene into your current scene and, one by one, move things over to the way you want to use it. That way you can figure out which step breaks it.

If you still can't get it to work, you can send me an email of your project (or a stripped down version if you want) and I'll try to debug it myself.

 

Unfortunately I still can't get the fog of war to show up for some reason. I'm working on stripping down my project so I can send it to you at some point. I'll also keep trying to get it to work. It's kind of a "weekend" project thing for now, but I'll keep working on it.

What email address should I send it to? I could also use something like Dropbox if necessary. Thanks

 

A stripped down version of your project is always the easier way for me to debug what's wrong
You can find my email on the asset store page or at the bottom of the user guide.

 

Hello, i can't get the scripts get to work on Android. So far everthing works as expected in the editor.
Anything i have to consider for the apk build ? Im working with 2019.3.7f with the legacyshader and mode. No Posteffects.

 

Are you getting compile errors, or is the fog not appearing?

 

Game is running fine - including your demoRTS system. Just the fog doesn't appear.

 

Even on a fresh unityproject i don't get any fog with your demoscene on Android 9 (S9).

 

It sounds like you haven't included shaders into the Always Included Shader list. The steps to do this depends on whether you're using legacy/URP/HDRP. You can find the steps in the user guide in the setup section.

 

Hello, what's the situation regarding URP/LWRP support?

 

Sorry for the wait.
I am still trying to figure out how to implement custom PP in URP. Unfortunately, there still isn't enough information out that explains how to do it (or if it's possible at all). I'm hoping in the 2020.1 release unity will cough up some working examples and maybe even some propper documentation.

I should point out that (apparently) the Post Processing Stack v2 is still supported on URP, although I haven't been able to get it to work.

 

Hi, I'm using this with RTS Engine and I wonder if there is a simple way to have permanent reveal for areas that have been explored.

 

You're best bet is to setup up an invisible unit to keep that area clear. Alternatively, you can do this through code which might be slightly more performant:

Code (CSharp):

1. FoW.FogOfWarTeam.GetTeam(0).SetFog(bounds, (byte)0);

Where bounds is the world space area of what you want to be unfogged.

 

Hi, is there a solution already for 2019.3 or 2019.4 and URP?

 

I'm still fighting with a few shader features with URP. I'm hoping it'll be ready soon... but I've said that before

 

Hi,
Is there a way to control the fog strength (like transparency) but without affecting outside fog strength?

I want the outside fog (border) solid black, but the fog in playzone be semi transparent

 

Was working just fine for a while with HDRP then at some point during working on other features, fog is no longer appearing. Can I send you my scene or hop on discord to troubleshoot the issue?