Sets the p5.js global functions
draw() etc. to render into
the specified layer. If no layer is specified, one is created.
beginLayer([width, height, [renderer]])
The first time this function is called, it creates an instance of p5.Graphics.
Subsequent calls return this instance. (If the arguments are omitted, the
Graphics is created at the canvas width and height.) On subsequent calls, the
renderer arguments are ignored, and the
previously-created instance is used.
beginLayer() returns the Graphics.
beginLayer(key, [width, height, renderer])
This form can be used to create multiple layers.
beginLayer() will create a
new layer for each distinct
key. The special key value
"new" always creates
a new layer.
This form can be used to set global draw functions to render onto a Graphics
that was created by
Restores the global draw functions
rect() etc. so that they operate on the
canvas again, instead of the Graphics created by or passed as an argument to
beginLayer(). This function also draws the Graphics onto the canvas – although
this behavior can be suppressed.
Restores the global draw functions, and draws the Graphics onto the canvas
unless the argument to
enterGraphics() was a Graphics.
endLayer(x, y, [width, height])
Restores the global draw functions, and draws the Graphics onto the canvas.
Restores the global draw functions. Does not draw the Graphics onto the canvas.