[Community Project] WIP Weather & Water Shader

[anonymous_user_0df12f74]

Hey ,

@Jervy;333381

Okay fixed my problem.
If anyone got the same:
The Mathematical Waves are off-sync with the material waves if you only simulate your scene. You have to actually play the game.

@;334644

Even then its not perfect. It all depends on the weight of your buoyant object, the number of test points, the density of your water and your test points etc. Theres a formula in the source, or at least there was. Its not 100% physically accurate simulation. But close enough for most needs without more expensive displacement algorithms.

When running in Simulate mode the Network Time Offset won’t be active, it was added to the BP_Ocean event graph to sync the time with the server. Without a server running, it is likely the reason for the time difference.

@mastergrief;332613

Im loving but you should add the ability to tie wave height to a variable so that we can have storms where the waves get higher.

That is something I am currently working on, a complete overhaul of the Sky/Weather that will include the Beaufort Scale for various sea states (calm to hurricane). I now have the calendar system working correctly, which allows me to get an accurate representation of the sun’s rotation/position for any point in time (-2000 to 6000 year) with about +/- 1 degree error tolerance.

Now working on the moon Phases/positioning/tide values, hope to have an initial version out very soon.

@risc;334959

What about something close to style any shader around here

thank you

That shader looks a lot like the Nvidia WaveWorks shader (which can be downloaded here, and more info can be found here). You need to download/compile a custom engine version from source in order to use it, but you can get a similar look with it. Note that it does not have Buoyancy or a realistic looking material out of the box, you will need to add those in yourself.

I may try integrating WaveWorks at some point in the future, however since it requires building a custom version of the engine we have not tried it with project yet. Right now I am waiting to see if Nvidia will be implementing a plugin version for the engine.

@kickassitus;336454

Hey guys, absolutely amazing work so far!

Running into error when source building UE4 with the plugin, any help at all would be appreciated!

1>------ Build started: Project: UE4, Configuration: Development_Editor x64 ------
1> Building UnrealHeaderTool…
1> Target is up to date.
1> Parsing headers for UE4Editor
1> C:/Users/*****/Documents/UnrealEngine-release/Engine/Plugins//OceanPlugin/Source/OceanPlugin/Classes/OceanManager.h(18) : Property is exposed to the editor or blueprints but has no Category specified.
1>Error : Failed to generate code for UE4Editor - error code: -1073741819 (-1073741819)
1> UnrealHeaderTool failed for target ‘UE4Editor’ (platform: Win64, module info: C:\Users*****\Documents\UnrealEngine-release\Engine\Intermediate\Build\Win64\UE4Editor\Development\UnrealHeaderTool.manifest).
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.MakeFile.Targets(38,5): error MSB3073: The command “…..\Build\BatchFiles\Build.bat UE4Editor Win64 Development” exited with code -1.
========== Build: 0 succeeded, 1 failed, 2 up-to-date, 0 skipped ==========

Thanks!

Hey there,

Which version of UE4 are you using, and which branch did you download from the page? I checked the code, line 18 is the declaration of a struct which doesn’t use categories so I’m a little bit confused…

If you downloaded the branch, try switching to TK’s branch (or if you downloaded TK’s branch, try downloading the ) to see if that helps. Let me know if it won’t work though!

@Xosh project;336061

Thanks for water! Look like the better one for me. I have a question for you, I want to use the water two time with different setting, but the second water overide the setting of the first one. How can I use water two time in my game ? Thanks for the future answer good day all of you!

When you say two times, do you mean in the same level? It should work so long as there are 2 separate blueprints (they should control their own setting separately). I will look into that a bit more on my end, but it should work.

@Norealium;337620

Hi all. It really is a wonderful plugin, but I have a problem with it:
In the editor, the water looks good, but in the game there’s a bug:
Do you happen to know what could be the problem?

Hi there, most likely that is being caused by not having the BP_SkyDome in your level with a Directional Light, which are required for the SSS to work, without those active it causes the yellow surface in your image. If you want to use your own sky then you will have to set it up manually or you can set the SSS intensity to zero.

@trustme95;337489

If you package a game and used Enable Stay Upright Constraint, then you most likely will receive a crash when running the game. Modify BuoyancyForceComponent.cpp, about line 279 should be:

ConstraintInstance.AngularSwing1Motion = EAngularConstraintMotion::ACM_Free;

Well at least that worked for me.

Thanks for the info! I will add that in asap

@BaekIronFist;337830

I’m following thread because love to see a nice water in videogames. But, here’s the thing I didn’t see yet here. How to built a realistic water shader and the water itself reacting with other object, deforming its shape when a character walks over it just like in Batman Arkham Knight, The Witcher 3, Crysis…?? It’s sad that we don’t have any facility to do that kind of water stuff yet Epic please JUST DO IT!!

@;338104

Hi, I hope you have some smash from wall or any object…Thanks more power

Do you mean Dynamic wave interaction with objects? if so that is not implemented at time, but I found some info on how can be done using DistanceFields and plan to add it in very soon. Fully dynamic interaction is a very difficult thing to do without performance issues among other reasons, so that will take some time to implement.

@Crafty;338145

So I managed to get the BP_Ocean into the level, but now there is another problem:

While I was searching for the cause I noticed in M_Ocean:

Not sure if it’s related

Hmm… That is a really odd error, I don’t use either of those structs directly so something must be messed up in the material itself.

Which version of the project did you download (TK’s branch or )? Also did you migrate the files over to another project or are you using the demo project from ?

If you moved the files to a new project then that error makes a bit more sense, let me know which it was and we’ll get you up and running