In 1986 Pixar Animations Studios produced its first animated short, since then jumping lamp appears on your logo.
Looking for this first job I have found different videos in the company of great interest, as animation “wireframe” This short, in which textures are not applied to the scene lighting or, and serves as a prelude to the validation of character movement, because its rendering is much faster in this mode. This is what is called a “Pencil Test“.
Once validated the complete sequence, apply the textures and lighting to get the result you probably all know:
Following this, a different versions that mix the new animated characters that the company has devised. For example, in June 2008 We can find it next to Wall-E
And if we keep searching the net, find different work of animation students who have developed very specific versions of this short. A charming example, almost adult version, is found in the following video:
Of course do not stop there parodies, more or less developed. This is one of the most interesting and complete:
Certainly, You know how the character is called? Luxo Jr