“Non-photorealistic animation and rendering creative use of existing software” by Kohlhaase

The charm of traditional animation often results from the imperfection of frame by frame drawings. We developed a simple to use algorithm to simulate hand drawn lines inside of an existing software package. The direction, length and density of the lines renders the surface quality as curvature, reflection and occlusion in a handmade style. During animation the lines are updated to follow the mesh deformation. The solution integrates seamlessly with the existing production workflow.

1. Tobias Isenberg a. o. 2006. Non-Photorealistic Rendering in Context: An Observational Study
2. Tilke Judd a. o. 2007.Apparent Ridges for Line Drawing
3. Forrester Cole a. o., 2008 Where Do People Draw Lines?