luma.gl is designed to provide support for development at whatever level the user requires. This can roughly be split into three levels of abstraction:

Low-level: Program directly with the WebGL API with some lightweight tools for managing the gl context, shaders and debugging. This will primarily involve using the shadertools, gltools and debug modules.
Mid-level: Program with convenient wrapper classes around the WebGL API. This involves using the webgl module.
High-level: Program using 3D engine constructs like models or resource managers. This primarily involves using the engine and webgl modules.

To demonstrate how luma.gl functions at these three levels, we'll implement the same scene, 4 instanced colored triangles, three times, once at each level of abstraction.