Removed dangling references when picking
Merge branch 'master' into leak
Merge branch 'master' into leak
Merge branch 'master' into leak
Merge branch 'master' into leak
Merged master to leak
Merge branch 'master' into leak
Render polylines in a single pass (no outline).
Merge remote-tracking branch 'origin/master' into leak
Start adding polyline width.
Polyline width tweaks.
Displace polyline vertices in the vertex shader to add width.
Merge branch 'master' into polylineMaterials
Tweak displacement magnitude in polyline vertex shader.
Fix polyline endpoints.
Fix line flickering across the viewport.
Update buffers instead of creating new ones.
Tweak polyline position direction. Move function to convert from spherical to cartesian coordinates to built-in functions.
Modify polyline vertex position in eye coordinates instead of window coordinates.
Add doc. Fix/add tests.