Section IV
Engine Design
Most graphics developers—and I believe most WebGL users—build applications on top of
game and graphics engines that hide the details of the graphics API and provide conve-
nient abstractions for loading models, creating materials, culling, level of detail, camera
navigation, and so on. is allows developers to focus on their specic problem domain
and not, for example, have to write shaders and model loaders by hand.
Given how many developers build on top of engines, it is important that engine devel-
opers make ecient use of the WebGL API and provide simple and exible abstractions.
In this section, the creators of some of the most popular WebGL engines and platforms
describe engine design and optimizations.
Common themes ...