Radwan, M., Ohrhallinger, S., Eisemann, E., & Wimmer, M. (2017). Cut, Drag, Paint: Occlusion-Aware Surface Processing. In Proceedings of Graphics Interface 2017 (pp. 82–89). Canadian Human-Computer Communications Society. https://doi.org/10.20380/GI2017.11
Canadian Human-Computer Communications Society, Edmonton, Alberta
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Peer reviewed:
Yes
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Abstract:
User-guided surface selection operations are straightforward for visible regions on a convex model. However, concave surfaces present a challenge because self-occlusions require multiple camera positions to get unobstructed views. Therefore, users often have to locate and switch to new unobstructed views in order to continue the operation. Our novel approach enables operations like painting or cutting in a single view, even on the backside of objects and for arbitrary depth complexity, with interactive performance. Continuous projection of a curve drawn in screen space onto the mesh guarantees seamless brush strokes or manifold cuts, unaffected by any occlusions.
Our occlusion-aware surface-processing method enables a number of applications in an easy way. As examples, we show continuous painting on the surface, selecting regions for texturing, creating illustrative cutaways from nested models and animation of cutaways.
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Research Areas:
Visual Computing and Human-Centered Technology: 100%
