Today’s post will discuss how to create the movie brush photo mosaic effect shown above. The effect uses a movie brush with an embedded alpha channel that masks the objects in each individual movie frame. The effect is also using random paint nib positioning for the individual masked objects, as opposed to laying them down in some kind of regular or adaptive grid patterning.
PLEASE NOTE: Movie brushes are no longer necessary for Studio Artist 5 for mosaics. This updated tutorial is using a folder of alpha images instead. You can still use a movie brush if you like but it is much easier to use a folder of images for the same effect.
This paint action sequence (PASeq) .AlphaMask.paseq was used to generate the photo mosaic effect above. It uses 3 passes of the same Image Folder paint preset, with 100%, 50%, and 25% brush sizing for the 3 progressive paint passes. The last 2 auto paint action steps also include an additional edit to the Path Start control panel, so that the smaller brush nib path start positions are restricted by the source texture to only be painted on feature edges associated with the source image