GL

Starting from v9, the luma.gl API uses strings instead of GL constants to specify parameters, formats etc, effectively eliminating the need for importing the @luma.gl/constants module

The @luma.gl/constants module has a single export: a (big) enum GL that contains all WebGL constants (i.e. the OpenGL API constants).

Usage

import GL from '@luma.gl/constants';
const type = GL.POINTS;

Remarks

While GL constants are exposed on the WebGLRenderingContext instance, it is often convenient to be able to reference them in code that does not have access to a WebGL context.
A range of constants provided by this module are not available on the WebGL context itself, but would otherwise have to be retrieved from WebGL extension objects.
Using the GL module ensures that WebGL 2 constants are defined even when working with a WebGL 1 context.

Bundle Size Considerations

Including a big enumeration containing many constants your application might not even be using does add to your applications bundle size. luma.gl offers a babel plugin that can inline the GL constants, typically resulting in smaller bundle size than if you used built-in gl.<constants> on your WebGLRenderingContext directly.