Terrain Season

[dongju.jeong]

Is it possible to change the color of the texture of the global terrain as a whole (from summer to winter) or to partially change the color (snowfall)?

 

for example

base( summer)

 

change to winter

 

change to winter with snow.

[morbid]

Hello Dong Ju,

This can be achieved with different detail layers. Prepare different winter states and turn them on/off in runtime. Additional ortho decals might be useful, just remember that decals can produce visual artifacts when their size is too big (kilometers in width and/or height).

Thanks.

 

[dongju.jeong]

Hi

 

To express the natural snow terrain, the mask was used as an ecw file.

This ecw file was used by albedo.

 

So, it is a problem because the size of the mask is too large.

Is there a way to reduce the size while maintaining the quality?

[silent]

Can you please elabordate on:

Quote

So, it is a problem because the size of the mask is too large.

Why is this a problem? I'm afraid there is no option to have the same quality, but with the reduced mask size.

Thanks!

[dongju.jeong]

We made terrain the size of a country.

The albedo size alone exceeds 170Gb.

I added a mask to make the terrain and failed due to lack of disks. The total size will probably exceed 300Gb.

 

It's not a big problem, just project management was a little inconvenient, because the time to assemble a terrain or project is too long.

so I asked this question because I didn't know how to use the mask efficiently.

 

I wanted to solve the problem of time, but I can endure it even if there is no other way.

 

Thank you.

Edited November 17, 2020 by dongju.jeong

[silent]

I guess the only way to reduce the size is to generate terrain with manual LODs setup. You can save up some space if you don't require a high density data, so you can select the distance and quality as you want.

Thanks!

[fred.naar]

hi donju,

what is your terrain density ?

we have a terrain map at 38km by 30km  at density about 10m /pixel height, albedo and 5 masks and the Lmap is about 1 gb....

 

[dongju.jeong]

10 hours ago, fred.naar said:

hi donju,

what is your terrain density ?

we have a terrain map at 38km by 30km  at density about 10m /pixel height, albedo and 5 masks and the Lmap is about 1 gb....

 

hi,

we use DTED3 file for height. and 50cm/pixel ecw file for albedo.

 

size of terrain is 629km x 1155km.

 

Edited November 19, 2020 by dongju.jeong

[fred.naar]

Well it depends on your project requirements, if you do a flight simulator you can get very good results with a 10m pixel density for heightmap, for a land based simulator , like Arma 3 or VBS they use 5 m px resolution.

For the albedo you could also use a similar lower resolution and add details maps. 

Also in our project we add more detailed landscape layers on top of the base layer for airports and cities,

I think this would be the best approach