This is one of over 4632 effects generated by Filter Forge, a Photoshop plugin that allows you to create your own filters.
To open this filter, you must have Filter Forge 3.0 or higher installed on your computer. If you don't have it installed yet, click here to download Filter Forge
The surface of your image is painted with boxes with this filter. You control the size and contrast. The effect can be subtle or harsh.
paint, boxes, surface effect, texture, smooth