Time for Action: Rotations in World Space vs Camera Space

Let's cover an example showing the different rotations in different spaces:

1. Open ch04_02_model-view-rotation.html in your browser:

2. As we did in the previous example, we will see the following:
   • A cone at the origin of the world
   • The camera is located at [0, 2, 50] in world coordinates
   • Three sliders that allow us to rotate either the world or the camera
   • A matrix where we can see the result of different rotations
3. Let's see what happens to the axis after we apply a rotation. With the World coordinates selected, rotate the world 90 degrees around the x-axis. What does the Model-View matrix look like?
4. Let's see where the axes end up after a 90 degree rotation around the x-axis:
   • By looking at the first column, we can see that the x-axis has not changed. It's still [1, 0, 0]. This makes sense since we...