3D camera orientaion

Programming Questions

println_h..

in Programming Questions • 5 months ago

I am making a 3D program, where you use the mouse to look around and the code for my camera movement is:

float camZ = (height/2.0) / tan(PI*60.0 / 360.0);
camera(width/2, height/2, camZ, // Camera location
mouseX, mouseY/2.0, 0, // Camera target
0, 1, 0); // Camera orientation

Which is built off of an example. Now, this makes it so i can look around, and works quite well. The problem is that i can not get a full 360 degree view of everything. My view is only limited by how far i can move the mouse. This only lets me see sideways, but not all the way behind me, or straight up or down for that matter. My question is, how can i use the camera, to look all the way behind me and up and down?

Replies(1)

Chrisir

Re: 3D camera orientaion

5 months ago

hm, your cam is on a fixed stand and you want to look around

so you need a circle around your cam and you look from inside to this circle

so mouseX needs to become a value for degree / angle:

angle=map(mouseX,0,width,0,359);

camLookAtX and camLookAtY you calculate with angle

camLookAtX = radius1*cos(radians(angle));
...... Y. sin.....

same for mouseY

see on openprocessing.org

first person shooter

Top Reply