TODO, Brainstorm.

[alex2wong]

• [ ] write blog sharing async/await in scene animation control.

• [x] build voxelized terrain using extrusion layer in Mapbox (inspired by Minecraft World)

• [ ] refactor route animation, simplify api.

[alex2wong]

• [x] submit directional line style, inspired by AMap from Gaode

• [x] submit directional/tilting marker for mapbox-gl.

[alex2wong]

• [x] try hacking webgl renderer of mapbox, add some stuff..