3D Rotations: Rotating around the screen axes

[glv]

@raetrakt

I should note that I actually switched to p5js because it allows me to rotate around a specified axis, instead of just x, y and z.

rotate(-y, [cos(x), 0, sin(x)]);

This is not possible in Java Processing afaik.

Take a look here:

Understanding rotate before translate

I thought it would clash with an existing P3D rotate() method but it seems not. Always thought it should be more like rotateAt() or rotateAround(). I have a few extra methods like that in PraxisLIVE (such as 7 parameter image()) but haven’t quite got around to this one yet. Interestingly, there is a 4 parameter version of rotate() in Processing already though - /** * Rotate around an arbitrary vector, similar to glRotate(), except that it * takes radians (instead of degrees). */ publ…

3D Rotations in Processing (Vectors, Matrices, Quaternions)