Physics-Based Differentiable Rendering Basics #
In this section, we cover important mathematical and algorithmic preliminaries that will be used repeatedly in the rest of the tutorials.
Differentiating Integrals #
The differentiation of integrals plays an essential role in physics-based differentiable rendering since forward rendering—the process that needs to be differentiated—largely amounts to computing (high-dimensional) integrals.
We begin this section by discussing the differentiation of 1D and general (i.e., Lebesgue) integrals.