Case Study: 9to3Animation Non Photoreal Rendering


We were approached by 9to3Animation in Holland to see if we could achieve a custom look, all in a 3d render, that was inspired the work of the great illustrator Carl Hollander with custom shaders and plugins in Pixar's RenderMan renderer.


Reference Artwork by Carl Hollander



Challenge: Going off the geometry with brush strokes

The big challenge was going off the geometry with brush strokes and sketch lines, as depicted in the reference artwork we were looking at. There are a lot of non photoreal rendering (NPR) examples and approaches, but most of them stay on the geometry so you end up with just painted textures and procedurals. We’re happy to have achieved multiple different styles that go off the 3d geometry all in a 3d render.


Challenge: Dynamic Hatching



Dynamic Hatching with "Screen" Projection, and animated outlines off-geometry
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Dynamic Hatching with "UV" Projection, and animated outlines off-geometry
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Dynamic Hatching with "Triplanar" Projection, and animated outlines off-geometry
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Dynamic Hatching responding to light intensity
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Dynamic Hatching responding to light intensity
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Painterly animation - all rendered in RenderMan!
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