Abstract: In one or more embodiments, a computing device is configured to present playback of a media composition on a touchscreen display. Concurrently with presenting the playback, the computing device receives, via the touchscreen display during a first time period, a touch input that includes a series of motions that start when a particular frame of the media composition is being presented. Responsive to receiving the touch input: the computing device adds a media clip to the media composition, with the media clip including a graphical representation of the touch input, having a duration corresponding to the first time period, and being stored in association with the particular frame. Subsequent to adding the media clip, the computing device presents a second playback of the media composition where playback of the media clip is initiated when playback of the particular frame is started during the second playback of the media composition.

Abstract: A photopolymerizable build material for photochemical additive manufacturing applications is disclosed. The photopolymerizable build material includes (i) a photopolymerizable monomer; (ii) a photoinitiator; and (iii) an ionic modifying agent. An additive manufactured article that includes at least 50 photopolymerized layers formed from the photopolymerizable build material and an additive manufacturing method for producing a three-dimensional article are also described.

Abstract: A photopolymerizable build material for photochemical additive manufacturing applications is disclosed. The photopolymerizable build material includes (i) a photopolymerizable monomer; (ii) a photoinitiator; and (iii) an ionic modifying agent. An additive manufactured article that includes at least 50 photopolymerized layers formed from the photopolymerizable build material and an additive manufacturing method for producing a three-dimensional article are also described.