Arnold rendering concepts

- [Instructor] Let's take a look at some core concepts…in Arnold rendering.…Arnold is a physically-base renderer.…It simulates the physics of lighting and materials…with real-world physical properties.…The parameters and work flows…of physically-based rendering are slightly different…from the legacy shading models…that are probably familiar to you.…With these new methods, we get a more accurate simulation…of materials and lighting.…And because Arnold is designed for simplicity…and ease of use,…we achieve photo realism with very little effort.…

To use Arnold most effectively,…we should know a little bit about the algorithm…that does the computations.…Arnold is what's known as a brute force renderer,…and in fact it's named after a famous bodybuilder…and politician Arnold Schwarzenegger.…The name is a nod to the power of brute force approach,…and in rendering,…brute force simply means that the global illumination…is calculated on every pixel of the frame.…Without optimization, a brute force rendering is…more computationally expensive…