If you want to be strict, maybe the book title should be "physics-based". If we are a bit more liberal, we can accept "physically based". "Physically-based" mig

If you want to be strict, maybe the book title should be "physics-based". If we are a bit more liberal, we can accept "physically based". "Physically-based" might be the most wrong of the three. https://english.stackexchange.com/questions/165416/is-physically-based-rendering-grammatically-correct https://english.stackexchange.com/questions/165416/is-physic...