Wait a bit until your done with mechanics in physics and you've finished Calculus and Linear Algebra. Then you will have the necessary foundational background r

Wait a bit until your done with mechanics in physics and you've finished Calculus and Linear Algebra. Then you will have the necessary foundational background required to pick up the math from just reading that cg book. Don't worry about "getting the math background" these courses should be required at any university for any engineering major, so you'll be getting the necessary math regardless of your interest.