Stationary player while moving using gluLookAt in OpenGL

[kev1953]

Hi, what is the best way to keep player stationary in the foreground, while
moving around the background using gluLookAt.
Could I use two layers, or would both move when using gluLookAt?
Or is there a mathematical calculation to maintain player position

[Duncan C]

Originally Posted by kev1953

Hi, what is the best way to keep player stationary in the foreground, while
moving around the background using gluLookAt.
Could I use two layers, or would both move when using gluLookAt?
Or is there a mathematical calculation to maintain player position

You're going about it the wrong way.

gluLookAt changes the projection matrix, which is global. That should stay the same for the whole scene.

The modelview matrix is for moving and transforming objects. You can set the modelview matrix one way, draw the background, and then change it before drawing your character.

And no, you can't use 2 layers. At best they would draw on top of each other, and the top one would erase the bottom one.

[kev1953]

Hi Duncan, many thanks for the input. you have alway been very helpful
I have thought of doing it by relocating the Models, (I guess this is what Modelview means), and I can move the playing field up/down left/right
But am lost as to how to rotate the field in front of the player, so the player only moves up/down and rotates the field when the player looks left or right. i.e. player always looking forward and field rotates around player.
The field is a maze like view, so glRotatef only rotates each part of the on it's own axis, I need to simulate the action that gluLookAt gives, by looking around the field.
Any pointers would be much appreciated.