Troika to draw text in webgl

[gchoqueux]

Context

itowns Label uses 2d canva

Description of the proposal

Use roika-three-text to have webgl text rendering : https://troika-examples.netlify.app/#text

Identified use-cases

by example itowns Label

other example use-case : https://troika-examples.netlify.app/#globeConnections

links

npm package : https://www.npmjs.com/package/troika-three-text
to go further, troika is framework :

• https://github.com/protectwise/troika
• https://protectwise.github.io/troika/#troika-threejs-tools

[jailln]

that would be a good improvement :)

[airnez]

I ran a simple performance test on MVT rendering in globe view in my browser and found out that label rendering / handling was the costliest operation. I did not expect that. I suppose that implementing this proposal would greatly improve MVT rendering performances. See screenshots from my chrome dev tools bellow (performance bottom-up view). I highlighted processes related to label handling.