The most important development in this area of special techniques occurred, arguably, in 1899, with the production of the short film Matches: An Appeal, a thirty-second long stop-motion animated piece intended to encourage the audience to send matches to British troops fighting the Boer War. The relative sophistication of this piece was not followed up for some time, with subsequent works in animation being limited to short, two or three frame effects, such as appeared in Edwin Porter's 1902 short "Fun in a Bakery Shop", where a lump of dough was made to smile over the course of a three-frame sequence. Works rivaling the British short in length did not appear until 1905, when Edwin Porter made How Jones Lost His Roll, and The Whole Dam Family and the Dam Dog. Both of these films had intertitles which were formed by the letters moving into place from a random scattering to form the words of the titles. This was done by exposing the film one frame at a time, and moving the letters a little bit towards their final position between each exposure. This is what has come to be called “single frame animation” or “object animation”, and it needs a slightly adapted camera that exposes only one frame for each turn of the crank handle, rather than the usual eight frames per turn.
In 1906, Albert Edward Smith and James Stuart Blackton at Vitagraph took the next step, and in their Humorous Phases of Funny Faces, what appear to be cartoon drawings of people move from one pose to another. This is done for most of the length of this film by moving jointed cut-outs of the figures frame by frame between the exposures, just as Porter moved his letters. However, there is a very short section of the film where things are made to appear to move by altering the drawings themselves from frame to frame, which is how standard animated cartoons have since been made up to today.
