Some Clean up

• There is a nice webgl reference card available
• any takes a boolean vector and returns true of any component is true (logical or)
• all is a logical and
• lessThan is one of a set of vector comparison functions.
• Look at this demo
  • How could we make the shader behave like the HTML5 Canvas?
    • edge color
    • fill color
    • back color
    • filled/not filled
  • How about filled/lines/points?
  • Would it make sense to send a "width" value between shader and program
• Do you understand all that is going on here?