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Rendering Surface Details with Diffusion Curves

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Published on Sep 7, 2009

Rendering Surface Details with Diffusion Curves. Stefan Jescke, David Cline, and Peter Wonka. ACM Transaction on Graphics. Proceedings of Siggraph Asia 2009.

Diffusion curve images (DCI) provide a powerful tool for efficient
2D image generation, storage and manipulation. A DCI consist of
curves with colors defined on either side. By diffusing these colors
over the image, the final result includes sharp boundaries along
the curves with smoothly shaded regions between them. This paper
extends the application of diffusion curves to render high quality
surface details on 3D objects. The first extension is a novel viewdependent
warping technique that dynamically reallocates texture
space so that object parts that appear large on screen get more texture
for enhanced detail. The second extension is a feature embedding
technique that retains crisp, anti-aliased curve details even in
extreme close-ups. The third extension is the application of local
feature reconstruction to displacement mapping and geometry images.
Our results show high quality renderings of diffusion curve
textures, displacements, and geometry images, all rendered interactively.

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