Need better and simpler understanding of CATransform3D

Question

Please go through the images.

Answer 1

The m34 value is the third row, forth column and is the value in the matrix behind the transform that actually gives the rotation perspective.

You can read more about the math behind matrix multiplications on Wikipedia.

• Transformation matrix
• 3D Perspective

Regarding the values for CATransform3DRotate(...).

• The first argument is the transform that you are rotating
• The second is the angle (in radians),
• The other three arguments it's the axis you are rotating around ((x, y, z) vector).