Calc UV from pixel x/y position, if matrix is present will multiply fill matrix.
Material to draw.
Output phase draw src rectangle.
Output draw width in pixels.
Output draw height in pixels.
Input UV src rect ( 0-1 UV space ) ( experimental )
Draw position x in pixels.
Draw position y in pixels.
Draw width in pixels (see drawWidth).
Draw height in pixels (see drawHeight).
Snap pixels to screen pixels.
Internal vector shape to draw.