Using isophotes and shadows to interactively model normal and height fields
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- 作者：Qiuying Xua ; Songrun Liub ; Yotam Gingoldb ; ygingold@gmu.edu" class="auth_mail" title="E-mail the corresponding author ; Karan Singha
- 关键词：Sketching ; Non-photorealistic rendering ; Isophotes
- 刊名：Computers & Graphics
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：59
- 期：Complete
- 页码：130-142
- 全文大小：6770 K
文摘
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We present an interactive modeling solution for inverse toon (discrete tone) shading.
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We describe an interactive tool for drawing and shading silhouettes and isophotes.
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We describe an algorithm to compute a smooth 3D normal field from toon shaded input.
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We describe an algorithm to lift a normal field with a shadow into a height field.
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We describe studies to assess humans' ability to perceive and draw isophotes.