Faster and higher quality global illumination

更快、更高质量的全局照明

• 批准号: EP/I031243/1
• 负责人: Mark Jones
• 金额: $ 31.47万
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI031243%2F1
• 关键词: Faster; higher; quality; global; illumination

Global illumination brings realistic and detailed lighting environments to Computer Graphics imagery at the expense of very high computational cost. Although most people are unaware, they experience its imagery when they have renderings of a new kitchen design, in public displays of new architecture, and in a variety of film, advertising and entertainment. The computer imagery produced by this technique can deliver the highest form of realism achievable by Computer Graphics as it models indirect light (reflected from other surfaces) and not just light direct from light sources in the scene.Such realism is now a standard requirement for the above applications and it is also gaining popularity in the virtual reality and scientific visualization communities as the advantages of increased perception and understanding are now recognised and outweigh the disadvantages of production time.Current approaches for fast global illumination place limits on the scene geometry, depth of light paths, numbers of samples, or the materials in the scene. Within these limitations it is possible to employ large caches for computation reuse (only in static scenes), or create simplified algorithms on the GPU, but always at the cost of reducing rendering accuracy.The aim of this research is to work towards real-time and accurate global illumination techniques by exploring new approaches to biased rendering methods. We will apply hierarchical techniques, clustering, ray and photon statistics and information, edge detection and combine other appropriate techniques to reduce the complexity and computation of global illumination whilst maintaining or enhancing visual accuracy.These improved timings and render quality will be demonstrated within a software package. The improved algorithms will allow the above application areas to produce higher quality images at reduced cost.

全球照明将现实且详细的照明环境带入计算机图形图像，但以非常高的计算成本为代价。尽管大多数人都没有意识到，但是当他们拥有新的厨房设计，在新建筑的公开展示以及各种电影，广告和娱乐中，他们会体验到其图像。该技术产生的计算机图像可以通过计算机图形来实现最高的现实主义形式，因为它模型间接光（从其他表面反射出来），而不仅仅是从场景中的光源中直接从光线中直接引起的光线。现实主义现在是上述应用的标准要求，并且它在虚拟现实和科学的可视化社区中也广泛地逐渐成为了促进的范围，而对范围的范围也是如此，而这些既定的现实和科学范围的范围都在范围内，而这些范围的范时间。快速全球照明的通行方法在场景几何形状，光路的深度，样本数量或场景中的材料上限制。在这些限制中，可以使用大量的缓存来进行计算重复使用（仅在静态场景中），或在GPU上创建简化的算法，但始终以降低渲染精度为代价。这项研究的目的是通过探索偏见的呈现呈现方法的新方法来实时和准确的全球照明技术。我们将采用层次技术，聚类，射线和光子统计数据和信息，边缘检测并结合其他适当的技术，以减少全球照明的复杂性和计算，同时维持或增强视觉准确性。这些改进的时间和渲染质量将在软件包中证明。改进的算法将允许上述应用领域以降低的成本生产更高质量的图像。

项目成果

Probabilistic illumination-aware filtering for Monte Carlo rendering

• DOI: 10.1007/s00371-013-0807-3
• 发表时间: 2013-06
• 期刊: The Visual Computer
• 作者: Ian C. Doidge;Mark W. Jones

Progressive Photon Relaxation

• DOI: 10.1145/2421636.2421643
• 发表时间: 2013-01-01
• 期刊: ACM TRANSACTIONS ON GRAPHICS
• 影响因子: 6.2
• 作者: Spencer, Ben;Jones, Mark W.
• 通讯作者: Jones, Mark W.

A Visualization Tool Used to Develop New Photon Mapping Techniques

• DOI: 10.1111/cgf.12464
• 发表时间: 2015-02
• 期刊: Computer Graphics Forum
• 影响因子: 2.5
• 作者: Ben Spencer;Mark W. Jones;I. S. Lim

Mixing Monte Carlo and progressive rendering for improved global illumination

• DOI: 10.1007/s00371-012-0703-2
• 发表时间: 2012-04
• 期刊: The Visual Computer
• 作者: Ian C. Doidge;Mark W. Jones;Benjamin Mora