vertical contrails ?!

[russe166]

Hi!

I tried to make a contrail that is not only horizontal, but got a vertical part in it.
This happened only by accident because I forgot to unplug the vortex warp from the final density modulator.

[attachimg=1]

But I have not the slightest idea why that works.


Does anyone know what is going on inside the cloud layer v2 and why this setting works?

Michael

[Ogre]

I created a function some time ago located here
http://www.planetside.co.uk/forums/index.php/topic,4090.msg159237.html#msg159237
The posted version moves in the Y direction. If you need it more in the Z or X direction you could switch the function inputs for Y and the desired direction (X or Z).

[fleetwood]

In your file the linear image providing the cloud density is Y projected from above. Your vortex is set to warp in the Z plane and the center of the warp is set to 0,0,0 or ground level.
Making the cloud depth 5000 and giving the vortex a higher value of vorticity (3) reveals a bit more about what is happening.

[russe166]

Hi!

Thanks for the link and the explanation. Both were very helpful, but I have one question left:

Why does the cloud, when I use both the 'density shader' and the warped 'Final density modulator', look like the result in the image?


I want to understand how the 'cloud layer v2' shader works. I do not see the connection between the two cloud shapes and the final result.

Does anyone know what is the logic behind the cloud layer v2 ?