stub
refactor onresize
stubbing shaders
indent
move
concise init with attribute extraction
concise init with attribute extraction
fix CSS positionning
example with common vertices
moved out generic functions
blah
prepare for line
code move
line on top of rectangle
glWrap.useProgram to reduce calls to gl.useProgram
tried gl.lineWidth - unfortunately not very helpful
stub linewidth
a vertically thicker line - sufficient for an elpro
shift now implemented with a uniform variable