Fog at the edge of terrain

[badday]

Hi,

is there an easy way to have fog only at the edge of a ITerrainSceneNode? So that you can´t see the the border of it.



Thanks,

badday

[REDDemon]

yes you can use a linear fog in this way.

Code: Select all

near plane = 1
far plane = 1000
linear fog starting limit = 900 (or what you like)
linear fog ending limit = 1000 (or what you like)

that's pretty simple. You can try with exponential fog also. I don't guarantee that this will work.

You should also remember to put as BG color the same color of the fog or at least uses a skydome/box with the lower part of the same color of the fog

[badday]

I hope I got u right.

Surely you can make a fog all over the terrain and make the area of the camera movement that little that it works fine. But what I am actually looking for is a fog that is only at the borders of the terrain.

[hendu]

I doubt there's fog like that, but you could place a suitable billboard/cube/etc there with a fog texture.

[randomMesh]

Well, just enable/disable fog dependent on the distance of the camera to the terrain borders.

[badday]

@randomMesh: Well, ok, you´re right, that will do the trick. Thx.


Another problem I see is that the material type of the terrain is a GLSL shader. So as far as I see it, it won´t be affected by irrlicht´s fog, will it? Of course, I can make fog via shader, but the thing is that this doesn´t lead to the intended effect as only the terrain get´s another colour, but there is no fading effect.

Does anyone know how to accomplish that?

[Brkopac]

http://irrlicht.sourceforge.net/forum/v ... og#p187594

Good luck

[badday]

Using that alpha-trick in the terrain shader worked well, thanks