I have found visually the effect that i want.
I saw an old post with someone pointing this link and asking for the
same thing.
http://www.electricoyster.com/electric3d/index.html
I tried to recreate this effect myself, but it looks impossible for me
to get some result.
I stock all 3d object faces in an Array.
Then i loop with the array length and do something like that :
if ( myCamera.position.distance(facesContainer[i].faceVO.v0.position)
> 1000 ) {
//change alpha here
}
I try to compare the myCamera.position with the vertice v0 of my face
to get the distance.
if the distance is superior to 1000 i change opacity.
But it does not work.
Anyway, if you have any kind of available solution to get the desired
effect, i would be glad to hear !
Thanks again !