Alright, so I've made a basic program that, so far, just makes a point in 3d space, renders it to a 2d screen, and rotates the camera. Rotating on the Z axis works just fine, on the X axis works basically fine, but the motion speeds up as the point gets closer to the edge of the screen, but I think that's just because of the perspective. The weird thing is, when I try to rotate along the Y axis, instead of the point appearing to move to the left/right, it moves diagonally, which isn't what I intended.
Below is a link to a .rar file containing the Java project, please ignore the Worldand FaceTri classes. Exe is the main class.
Download the project here. Please tell me if you can figure out why incrementing the Y Euler Angle causes the point to appear to move diagonally.
