simplify point shader

[ansis]

We're currently calculating whether the fragment is within the bounds of the actual icon so that we don't draw parts of the sprite outside of the icon. Maybe we should just pad icons more in the sprite.

https://github.com/mapbox/llmr/blob/master/shaders/point.fragment.glsl#L15-L16

[incanus]

Is a sprite the ultimate destination for this imagery? It's more efficient for texture loading, but I can see a future where arbitrary icons are used, too, so maybe this is premature optimization?

[kkaefer]

@incanus in any case, we're going to use a sprite. Whether it'll be a pre-baked one like now or one that we create on-the-fly (like we do already for glyph images) using some texture atlas system.

[incanus]

👍

[ansis]

not relevant anymore