[Community Project] WIP Weather & Water Shader

anonymous_user_0df12f74 · July 12, 2016, 11:22pm

speedpacer;563428:

I’m having trouble getting the same underwater that’s in dcSkyTestMap and UnderwaterFish in 4.12.5. I created a new project, copied the Plugins folder into project folder and , ShipsAndExamples, and Sky folders into the Content folder, created a new empty level, dragged the BP_Ocean, BP_Underwater, and BP_Sky blueprints into the scene then deleted them. Then I copied BP_Ocean, BP_Sky, BP_Underwater, PP_Global and WaterSwimVolume from dcSkyTestMap and into my level but they didn’t all copy until I migrated the map into my project. Then they copied but there are no underwater .

I also tried as directed in the instructions using the OceanExampleMap_01 but I think they’re a little outdated. I couldn’t find everything in the example map that I was supposed to copy, and it looks like the lights and heightfog are no longer needed in the new sky bp. I’ve tried other combinations as well to no avail. The only way I could get it to work was to rename the files and contents in source of to my project name, generate VS files and compile it that way. gave me all of the I was looking for but every time I tried to add a new class, the editor crashed.

Also, when I plug in latitude and longitude for Kennedy Space Center (28.58N, 80.65W), the sun and moon both show up at 10. And if I check the Allow Daylight Savings box and hit play, the sun immediately goes down.

And finally, I tried switching to a first person pawn and when I hit play, the sky gets darker. Changing the sun’s brightness had no effect. But what’s really weird is if I walk (speed of 600), it stays that way, but if I run (shift+w and speed at 1000), it brightens up until I stop and then gets dark again.

Not sure what I’m missing or doing wrong… any ideas?

The issues with underwater will be caused by not having a Post Process actor in the scene with the Blendables PP material in the Misc section (and make sure the PP volume is “UnBound”), check the implementation of the PP_Global actor in the demo level. Also make sure you migrate everything in the Sky & folder, along with the ShipsAndExamples\CustomThirdPerson\Blueprints folder at a minimum if you want both the and skydome.

The brightening will also be caused by the PostProcess volume, expand the Settings, then the Auto Exposure section, and set both the Min & Brightness values to 1. disables the brightening effect when looking at bright then darker areas and vice versa.

For the moon, believe it or not, the moon is quite often visible in the daytime (how else could you get a solar eclipse mid day?). We don’t notice it as much because it blends into the atmosphere, it doesn’t stand out like it does at night, but it is there. You can check the values against website, MoonCalc.org, or any others such as the US Navy’s site. Just enter in your long/lat date/time, then compare the Azimuth (yaw) and AltitudeAngle (pitch) values. Please note that the end Rotator pitch/yaw/roll will not be the same as Azimuth & AltitudeAngle, they need to be rotated into UE4 coordinates causing a discrepancy. Be sure to adjust the time/date in the Default section, the moon and sun positions vary from one day to the next, most days the moon stays below the horizon during the day, but not all.

One last thing to keep in mind, the Offset UTC variable needs to be accurate for your longitude location. As an example I live in Vancouver Canada, which is roughly -130 longitude, and a UTC hour offset of -8. The east coast is -5 hours UTC, make sure you have that set properly. I am not sure what might be causing the with Daylight Savings time but I will look into it further.

I will update the documentation asap with the migrating instructions, and get back to you on the other info asap.

@Mordraug:
Please take a look at answer from TK a little while back, the texture needs to be a certain size to work properly:
https://.unrealengine.com/showthread.php?42092-Community-Project-WIP-Weather-amp–Water-Shader&p=553893&viewfull=1#post553893

@dazuk1978 / @jSlavens / @ppouloup

I am sorry for not replying to your PM’s yet, I have not been doing very well for the last couple weeks, I will try and get back to you asap

@

Same as above, haven’t been around much lately, but I’ll try again tomorrow Your fluid surface actor looks great! It’s probably a lot of fun to play with too hey? Nice work man!