Spiritdude/OpenJSCAD.org — pull request #30 by wczerniak (2013-07-27 19:24:06+00:00)
Title: push to meshes only if there is sth to render

prevents "WebGL: INVALID_VALUE: vertexAttribPointer: bad size, stride or
offset lightgl.js:1059" warning when light.gl tries to render empty mesh
and size is zero.