Selective Inspection and Interactive Visualization of Light Transport in Virtual Scenes
Selective Inspection and Interactive Visualization of Light Transport in Virtual Scenes
复制标题
虚拟场景中光传输的选择性检查和交互式可视化
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
C. Dachsbacher
中科院分区：
文献类型：
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作者：
Tim Reiner;Anton Kaplanyan;Marcel Reinhard;C. Dachsbacher
本文提出了一种新的交互式可视化技术，用于检测虚拟场景中的全局光传输。首先，我们提出了一个简单的扩展光子映射，以收集所需的照明信息。然后，我们介绍了一套五种光检测工具来处理这些数据，以提供进一步的见解。相应的可视化帮助用户理解光线如何在场景中传播，照明如何影响表面的外观，以及物体如何引起焦散等照明效果。我们实现了在实际生产环境中直接使用的所有工具。渲染是基于渐进光子映射，提供交互性和即时的视觉反馈。我们进行了一项用户研究，以评估各种应用场景中的所有技术，从而讨论它们各自的优缺点。此外，我们还提供了来自领域专家的反馈。
This paper presents novel interactive visualization techniques for inspecting the global light transport in virtual scenes. First, we propose a simple extension to photon mapping to gather required lighting information. We then introduce a set of five light inspection tools which process this data to provide further insights. Corresponding visualizations help the user to comprehend how light travels within a scene, how the lighting affects the appearance of a surface, and how objects cause lighting effects such as caustics. We implemented all tools for direct usage in real production environments. Rendering is based on progressive photon mapping, providing interactivity and immediate visual feedback. We conducted a user study to evaluate all techniques in various application scenarios and hence discuss their individual strengths and weaknesses. Moreover, we present feedback from domain experts.