Brush Basics Annotation:  Oversized Brushes

    The largest brush size PI offers is 500x500 pixels--but what to do if your image is larger?  Well, you can always resize it--but if huge is what you need here's how to do by taking advantage of a brush's built-in propensity to tile.

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1.  Because the Paintbrush is focused at its center, you will need to start with a canvas that's about twice as large as your image--vertically, horizontally, or both, depending on how much of the pic fits into a 500x500 pixel area.  (I've used a small brush here to paint a 466x314 object in order to save space demonstrating '-)

    In "Paint as object" mode, line up the brush as usual in the upper left corner of your canvas and click it just once.  Resist the urge to rub your brush around to paint in all of the object--doing that will cause "thickening," reducing transparency.

2.  Still in Paint as object mode, move your brush to the edge of the object lining it up carefully so that it doesn't overlap (you may want to zoom in to 200% to do this).

3.  When you've got it exactly in the right place, with a steady hand click just once again (I've changed the brush color to show the join).  If there's a narrow darkened line at the join, you've overlapped and need to click Undo to try again.

If there are other bits of your image missing, repeat the process in the appropriate places.  When you're satisfied with the result, click out of Paint as object mode.

4.  Now carefully erase any superfluous bits of the image that may have tiled.  Trim and Crop to be sure you've got them all and you're done :-)