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Hybrid visibility compositing and masking for illustrative rendering.

Bruckner S, Rautek P, Viola I, Roberts M, Sousa MC, Gröller ME - Comput Graph (2010)

Bottom Line: These tools behave just like in 2D, but their influence extends beyond a single viewpoint.Since the presented approach makes no assumptions about the underlying rendering algorithms, layers can be generated based on polygonal geometry, volumetric data, point-based representations, or others.Our implementation exploits current graphics hardware and permits real-time interaction and rendering.

View Article: PubMed Central - PubMed

Affiliation: Institute of Computer Graphics and Algorithms, Vienna University of Technology, Austria.

ABSTRACT
In this paper, we introduce a novel framework for the compositing of interactively rendered 3D layers tailored to the needs of scientific illustration. Currently, traditional scientific illustrations are produced in a series of composition stages, combining different pictorial elements using 2D digital layering. Our approach extends the layer metaphor into 3D without giving up the advantages of 2D methods. The new compositing approach allows for effects such as selective transparency, occlusion overrides, and soft depth buffering. Furthermore, we show how common manipulation techniques such as masking can be integrated into this concept. These tools behave just like in 2D, but their influence extends beyond a single viewpoint. Since the presented approach makes no assumptions about the underlying rendering algorithms, layers can be generated based on polygonal geometry, volumetric data, point-based representations, or others. Our implementation exploits current graphics hardware and permits real-time interaction and rendering.

No MeSH data available.


Related in: MedlinePlus

Generation of a 3D illustration of the human heart: (a) line drawing layer; (b) combination with muscle layer; (c) applying masking; and (d) after rotation.
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fig8: Generation of a 3D illustration of the human heart: (a) line drawing layer; (b) combination with muscle layer; (c) applying masking; and (d) after rotation.

Mentions: In Fig. 8(a), we show an example of a human heart model rendered as a line drawing. Then, in Fig. 8(b), a layer depicting the pericardium (heart muscle) is added. In Fig. 8(c), additional layers depicting arterial and venous system are enabled. As no visibility overrides are required, all heart layers form a visibility chain which terminates with the over operator. The parameter of the pericardium is adjusted to make the inner structures of the heart close to the surface shine through. Masking is then applied to the line drawing and vascular layers making them fade into the background. Fig. 8(d) demonstrates that the brushed mask smoothly translates to other viewpoints.


Hybrid visibility compositing and masking for illustrative rendering.

Bruckner S, Rautek P, Viola I, Roberts M, Sousa MC, Gröller ME - Comput Graph (2010)

Generation of a 3D illustration of the human heart: (a) line drawing layer; (b) combination with muscle layer; (c) applying masking; and (d) after rotation.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2925605&req=5

fig8: Generation of a 3D illustration of the human heart: (a) line drawing layer; (b) combination with muscle layer; (c) applying masking; and (d) after rotation.
Mentions: In Fig. 8(a), we show an example of a human heart model rendered as a line drawing. Then, in Fig. 8(b), a layer depicting the pericardium (heart muscle) is added. In Fig. 8(c), additional layers depicting arterial and venous system are enabled. As no visibility overrides are required, all heart layers form a visibility chain which terminates with the over operator. The parameter of the pericardium is adjusted to make the inner structures of the heart close to the surface shine through. Masking is then applied to the line drawing and vascular layers making them fade into the background. Fig. 8(d) demonstrates that the brushed mask smoothly translates to other viewpoints.

Bottom Line: These tools behave just like in 2D, but their influence extends beyond a single viewpoint.Since the presented approach makes no assumptions about the underlying rendering algorithms, layers can be generated based on polygonal geometry, volumetric data, point-based representations, or others.Our implementation exploits current graphics hardware and permits real-time interaction and rendering.

View Article: PubMed Central - PubMed

Affiliation: Institute of Computer Graphics and Algorithms, Vienna University of Technology, Austria.

ABSTRACT
In this paper, we introduce a novel framework for the compositing of interactively rendered 3D layers tailored to the needs of scientific illustration. Currently, traditional scientific illustrations are produced in a series of composition stages, combining different pictorial elements using 2D digital layering. Our approach extends the layer metaphor into 3D without giving up the advantages of 2D methods. The new compositing approach allows for effects such as selective transparency, occlusion overrides, and soft depth buffering. Furthermore, we show how common manipulation techniques such as masking can be integrated into this concept. These tools behave just like in 2D, but their influence extends beyond a single viewpoint. Since the presented approach makes no assumptions about the underlying rendering algorithms, layers can be generated based on polygonal geometry, volumetric data, point-based representations, or others. Our implementation exploits current graphics hardware and permits real-time interaction and rendering.

No MeSH data available.


Related in: MedlinePlus