rotate or not rotate ...

[Marc]

Hi !

How do I rotate a scenenode? If I do

node = smgr->addAnimatedMeshSceneNode

I can set the position by calling

node->setPosition

but calling

node->setRotation

simply doesn't change anything. All my testfaeries always look in the same direction. By the way, they also do this in all the examples ...

So how can I rotate such a thing?

[niko]

Should be correct. Maybe the rotation value is too small? Or maybe it helps to call updateAbsolutePosition() afterwards?

[Marc]

ok, the parameters must be in degrees.

[afecelis]

Marc, I need to rotate some scene nodes and my camera, could you be more specific on how you made it?

Code line if possible, plz!!!



cheers!

[Marc]

I use

scenenode->setRotation(core::vector3df(a,b,c));

where the a,b,c are the angles around x,z, and again x axes, if nikos code applies to to standards. For me, I just pluged the angels in the different position until it went right.
The angels have to be in degrees, so from 0-360 instead of from 0-2*PI. If u use the later ones in your internal code, u have to mulitply them by 180/PI.

For some reason this didn't work for me for the camera. There I used

camera->setTarget(core::vector3df(x,z,y));

where (x,y,z) is the point where the camera is looking at. I calculated a point with distance 100 away from the camera position and in the direction where I want to look by again 3 angles.

And there is x,z,y because i don't like the coordinate system of irrlicht. I prefer having the first 2 components the walking plane und the 3rd one the height. But that's just my opinion.

[exal]

You are not forgetting that you have to add to the rotation every fram otherwise the object will be still at the same rotation all the time?

[Marc]

no, my a,b,c are the absolute rotations coming from my AI-code. Otherwise u have to add rotation instead of just setting it.

[afecelis]

thnx Marc! I'll try it out today.