StraightEdge brush

[msfeldstein]

Add a brush that lets you draw very straight lines (perfectly straight in fact). It might be cool in the future to have some snapping to make perfectly orthogonal shapes.

[fernandojsg]

lineWidth is not usable on windows, but just on mac as it doesn't matter the value you set, on windows it will always be 1.
I could try to abstract the line code from the line.js brush, so you could use that line to paint an actual geometry line using a mesh instead of just a THREE.line so it could have the correct linewidth

[msfeldstein]

I was considering using @spite's MeshLine class for this, but it does look like windows did implement it in the latest webvr chromium. What's your opinion on bringing in a powerful class like meshline vs just pulling out the line-maker code we have in line.js?

[msfeldstein]

and yeah i think even the lineWidth implementation they have now is not very useful, that's as big as it goes.

[fernandojsg]

The MeshLine is a screenspace implementation so it's not suitable for VR, in fact I started using that for the early version of a-painter but then I needed to switch to a full geometry version like the one we have now.
I'm going to create a new let's say "GeometryLine" and you could use it in a similar way as MeshLine but it will generate actual geometry. I'll let you know when it's finished and you could try to update your PR

[msfeldstein]

cool sounds good.

[msfeldstein]

Oh the other reason i wanted to use line was so that it was a uniform width no matter what angle you look at it from. I've been meaning to look into some Cylinder extrusion or something so we can have brushes that dont disappear from certain angles.