Wolrd Machine to UE4 using World Composition

Lyons_Den · January 20, 2015, 6:19pm

Thanks glad I could help. As far as the mirror issue goes, I will have to try a reproduce it. What are your settings on export from world machine?

Antidamage · January 20, 2015, 8:41pm

In all the time I’ve used world machine with UE I never noticed this! I guess my terrains are quite generic and mirroring wasn’t obvious.

Chaoss · January 21, 2015, 3:43am

Great tutorial, I’ve gotten my terrain to work but I was wondering how you would go about managing “background” terrain? I’d normally just put a low resolution version of the terrain on a mesh and use a color and normal map and have that draw on the persistent world, however this causes visible seems at the edges of where the high detail terrain meet the low detail terrain. In Unity I could use various shader draw order tricks and use a cheap alpha blending method, however this method does not appear to be available in UE4 so I’m a little stumped

Antidamage · January 21, 2015, 7:46am

Lots of options there.

Create all the terrain you want to see and let UE’s CLOD handle it. That’s a fair whack of extra data though.
Do something like Far Cry 4 and put fog between near and distant terrain.

anonymous_user_eb590496 · January 21, 2015, 8:16pm

Thanks for posting this!

I am a big fan of World Machine. Thanks for sharing such good info about getting this data into UE4!

anonymous_user_81c4c47e · January 22, 2015, 2:18pm

Hello,

In WorldMachine my settings are :

Size of overall terrain: 32km x 32km
General settings resolution : 1009x1009
Maximum elevation 3540m
Base Elevation -300m

In the Tiled build option tab the settings are

Flip y-axis orientation is checked
Tiles : 6x6
Each tile resolution is 2017x2017 (resolutions for UE4 as recommanded in Landscape Technical Guide in Unreal Engine | Unreal Engine 5.3 Documentation)
Share edge vertices is checked

My heightmap is exported as RAW16, the weightmaps are exported as RAW, “participate when building tiled worlds” is checked for each of them.

Hope you have all the info you need, thanks for taking the time to have a look at this weird mirror issue…
Cheers

calmasacow · February 21, 2015, 4:06am

I’m having the mirror options as well I can figure it out.

I have checked the setting over and over.

calmasacow · February 21, 2015, 5:59am

HAs anyone submitted this as a bug? It seems to be an issue with how Unreal is reading the files in. As in they are correct when viewed in photoshop. It is Unreal Engine that is doing the flipping on X Technically they are both wrong X and Y.

calmasacow · February 22, 2015, 9:54pm

So basically this is completely broken and no one has noticed?

Aloyce · March 13, 2015, 11:08am

As a workaround would flipping them on X in photoshop before you import them in UE4 solve it? That is until it is fixed

mad_1 · March 31, 2015, 12:29pm

In these days I have the same problem

SaviorNT · March 31, 2015, 2:42pm

I made a simple UE4 export macro with all of the nodes if anyone wants it. Not at all a huge macro breakthrough or anyhting, but it does save about 5 minutes worth of work.

mad_1 · March 31, 2015, 4:07pm

yep thank you

SaviorNT · March 31, 2015, 5:37pm

Alright, once I finish work for the day, I’ll organize the outputs a bit better and then put it up on… github or google drive? somewhere. The WM people haven’t processed my account request so I can’t upload it there yet.

mad_1 · March 31, 2015, 6:12pm

ok. thank you very much

sanford87 · March 31, 2015, 8:36pm

Wow, this is great stuff. I’m gonna try this tonight.

Kjasi · March 31, 2015, 10:40pm

Here’s my macro that will create weight-blended masks right out of World Machine.

sanford87 · March 31, 2015, 11:28pm

Thank you so much. That’s really cool. I’ll check it out right now.

SaviorNT · March 31, 2015, 11:28pm

As promised, attached the .dev file to the post as a zip file.

mad_1 · April 1, 2015, 5:19pm

There are news about the flipping problem? I can’t resolve it.

Thank you