gluLookAt for in_game_world_objekts?
Author
I have a 3D game world!
I use gluLookAt to set the "camera" , so that i see the world from the right pos, in the right direction.
In my world, i have a ship! It have a position, a facing_direction_vector, and a up_direction_vactor!
How can i use these vectors to rotate and transforme the ship?
I think i need to use glPushMatrix, and glPopMatrix to set and restore the world matrix, but what about the code betwen?
Please help! :-)
-Anders-Oredsson-Norway-
It depends on where the ship is pointing from the start without roatations. glRotate is used to rotate around any arbitary axis.
Why not give it a try before asking for help?
You can start by identify the axis you want to rotate around.
Why not give it a try before asking for help?
You can start by identify the axis you want to rotate around.
Author
Thats my problem! I will not use degrees, but instead i use directional vectors! This is because of my physic engine!
-Anders-Oredsson-Norway-
-Anders-Oredsson-Norway-
Pull out a geometry or trigonometry book. If you know the two vectors, you can find the lenth of the arc within the circle/ellipse defined by those vectors.
It is probably easier to solve a less general problem. If you just want the rotation around the y axis can you calculate it from the x and z part of the direction vector.
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement