Hello. At first sorry for my terrible english ;)
I'm new in Irrlicht, previously i was using other engine to write my apps. I have got
some question about advanced collisions - lets imagine that situation: we have a
long, empty corridor (this is our main map) loaded as 3ds. Of course doing collision
detection on that map isn't any problem. But now we want to add a big 'box' in midle
of this corridor ('box'is another, independent 3ds model). We doing collision in this
situation gathering all selector (octree selectors in my example) in
IMetaTriangleSelector. Ok - so far so good. But now we want to add a moving behaviour
to our 'box' which starts slidng inside the corridor. And there is a problem - when
camera is moving collisions are detected correctly, but when camera stops and when
moving 'box' should 'push' the camera nothing happens ('box' goes through camera). I
think that in this situation forces must be calculated for both: camera and 'box'
(every <moving> object must affect camera). So is this situation already implemented
in Irrlicht? If yes how to do this? I think that this is very important thing for
making elevators, doors, and even other moving models on map in most games...
And one more thing - animators. If i assume correctly we have only two animators that
moving nodes - flycircle and flystraight. Both works great, but i think that very
useful and universal should be animator that moves node using spline - we simply may
add some points where the node may travel. For each point we may declare other speed
or time to travel (some looping and direction change options should be great too)...
And again, sorry for any (many :) errors...
Doing advanced collisions and animators sugestion...
English isn`t my native languate either, but I was able to understand everything you wrote. 
The problem you described - correct collision with moving objects like platforms or doors - is not supported yet in Irrlicht, sorry. But you could try to do it using a physics engine, like Tokamak or ODE. There are tutorials on the website showing how to do this.
The problem you described - correct collision with moving objects like platforms or doors - is not supported yet in Irrlicht, sorry. But you could try to do it using a physics engine, like Tokamak or ODE. There are tutorials on the website showing how to do this.