Function: rectCoverage()

function rectCoverage(px, py, g, cornerRadius, pixelRatio): RectCoverage;

Experimental

CPU mirror of the fragment shader: anti-aliased coverage at screen point (px, py) (CSS px) for a rect placed by rectScreenGeometry. The AA ramp is one device pixel centred on the edge.

Parameters

Parameter	Type
px	number
py	number
g	RectScreenGeometry
cornerRadius	number
pixelRatio	number

Returns

RectCoverage