Direction Vector

[anonymous_joe]

Hi all,

OK, heres my problem. Im developing a basic aeroplane flying through the sky. So far, I just have the plane flying. The only thing is its flying the wrong way. I have modeled two planes in 3d max. when i import the first plane and fly it, it flys grand. (when i press left key, it goes left, when press up, plane goes forward. etc), but when i import the second plane instead of the first, and try fly that, when i press the up key to go forward, the plane goes down (not backwards, downwards). Does anyone know where in my code I should fiddle around with to get the second plane flying perfect?

ps. im really really stuck on this one. :(


Thanks to you all for you replies, in advance. :)



Anonymous_Joe

[bignobody]

I found the problem! It's on line 1362 of CAirplane.cpp.

:whistle:

Seriously though, without anyone here being able to see any of the code, how can you expect anyone to help?

I do find it very strange that loading a different mesh would alter your input handler though... They should be in very unrelated parts of your code.

[Wernaeh]

Hi there.

This is just a guess, but maybe your models aren't defined in the same coordinate systems ? Usually, you have one axis as forward, one as up, and one as right. Now, in 3D Max, this could mean that your front axis is the positive x axis. When modelling another plane, you might accidentally have it facing into the negative x axis, so it would seem to a third person observer that the plane is flying backwards.

Try mirroring your mesh in 3D Max, and see what it results in.

Alternatively, if you are using a transform stack, make sure you push / pop properly around the code that renders your mesh.

Hope this helps,

Cheers,
- Wernaeh