Look Ma, Just one WebGL2 Context

generic webgl

generic webgl no size

red

blue

purple with alpha .5 but alpha:false

green .5 with alpha .5 alpha true (default)

green 1 with alpha .5 premultipliedAlpha: false

preserveDrawingBuffer: true

three.js

multiple render targets

Instanced Drawing & VertexArray

GPGPU