how to fly camera follow spline?

[lab_zj]

I have many points that served as a track, and I want fly camera follow this track with optional offset, and require camera's direction always toward the front (the track point's tangent direction).

currently, I use ISceneManager::createFollowSplineAnimator(), that can control camera follow track (a spline), but the fly speed seems not uniform and sometime backward fly, and the camera's direction also not controlled.

So, If I want camera fly by my rule, I must write myself animator?

thanks.

[randomMesh]

I have many points that served as a track, and I want fly camera follow this track...
...I use ISceneManager::createFollowSplineAnimator(), ... but the fly speed seems not uniform and sometime backward fly, and the camera's direction also not controlled.

A spline is not just a set of way points. It interpolates between them.

The animator modifies the position of
the attached scene node to make it follow a hermite spline.
It uses a subset of hermite splines: either cardinal splines
(tightness != 0.5) or catmull-rom-splines (tightness == 0.5).

So, If I want camera fly by my rule, I must write myself animator?

No, createFollowSplineAnimator() should be fine if properly used.

and the camera's direction also not controlled

Code: Select all

camera->setTarget()

[lab_zj]

thank you very much, I will try again.

[Reiko]

and the camera's direction also not controlled.

you could try the ideas put forward in this thread

http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=22480

I did see another thread the other day with a different idea but now I cant find it again.

[lab_zj]

thanks for your reply. I have write my track animator, that can exactly control camera's position and rotation based on time-key-frame interpolate, the camera always fly with uniform speed and smoothly rotate.