I am using gluLookAt() to set the camera position and orientation GLU.gluLookAt(xPosition, yPosition, zPosition,

Question

0

Asked: June 14, 20262026-06-14T17:37:47+00:00 2026-06-14T17:37:47+00:00

I am using gluLookAt() to set the camera position and orientation GLU.gluLookAt(xPosition, yPosition, zPosition,

0

I am using gluLookAt() to set the “camera” position and orientation

GLU.gluLookAt(xPosition, yPosition, zPosition,
              xPosition + lx, yPosition, zPosition + lz
              0, 1, 0);

my lz and lx variables represent my forward vector

lz = Math.cos(angle);
lx = -Math.sin(angle);

When turn around in the 3D world, it appears that I am rotating around an axis that is always infront of me

I know this because my xPosition and yPosition variables stay the same, but I appear to spin around an object when im close to it and I turn.

Axis Diagram

I know there is not a problem with the maths that I have used here, because I have tried using code from past projects that have worked properly but the problem still remains.

This is what I am doing in the rendering loop

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//draw scene from user perspective
glLoadIdentity();
GLU.gluLookAt(camera.getxPos(), camera.getyPos(), camera.getzPos(), 
      camera.getxPos()+camera.getLx(), camera.getyPos(),     camera.getzPos()+p1.getLz(),
      0, 1, 0);


glBegin(GL_QUADS);
glVertex3f(-dim, dim, 0);
glVertex3f(dim, dim, 0);
glVertex3f(dim, 0, 0);
glVertex3f(-dim, 0, 0);
glEnd();

pollInput();
camera.update();

I have tried rendering a box where the player coordinates are and I got this result. The camera appears to be looking from behind the player coordinates. To use an analogy right now its like a 3rd Person game and It should look like a first person game

The small box here is rendered in the camera coordinates, to give some perspective the bigger box is infront.

Third Person
Third Person 2