Image Slice filter

An "image slice" filter would be neat. It would slice the image into an NxM grid, and output one of the sub-images as a full-size image. This would allow you to have a grid of, say, 3x3 inputs in the source image, and use different sub-slices for Bomber. Some back-flow parameter that lets Bomber choose a random sub-slice for each splat would be great, too, but that could also be done by specifying different sub-images for different Particle inputs.

As an alternative, a "Crop" filter might be good enough (specify a sub-rectangle), then you can create many sub-images by instantiating many "Crop" filters, all coming from the same source Image. A "Cropped" image could have an option be scaled to the size needed -- full size of output bitmap -- or to be un-scaled with a settable/mappable background color.