Procedural Creation and Real-time Display of Realistic Complex Scenes

真实复杂场景的程序化创建和实时显示

• 批准号: RGPIN-2020-05117
• 负责人: Poulin, Pierre
• 金额: $ 2.99万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=740402
• 关键词: Procedural; Creation; Real; time; Display

The key elements to realistic image synthesis need to handle the representation of scene geometry, its individual/combined textures and reflectance properties, and how emitted and incident light travels through it. High-quality offline rendering, often based on Monte Carlo Path Tracing, solves well the related problems, but at the cost of thousands of hours of computations and gigabytes of memory space. However, many applications requiring real-time realistic display must handle these elements all together with some form of pre-filtering appearances at different scales. We introduce hierarchical texture/surface/volume methods for real-time rendering. They are constructed on variations of regular shell maps and gigavoxels, providing new innovative approximations within volume elements to visual phenomena critical to appearance, while guaranteeing a one-structure query per pixel or per ray. This research program dives into these representations and integrates them well with today's GPU facilities. These methods and structures are also combined with intuitive controls for artists and scientists to generate credible and coherent complex worlds.

真实图像合成的关键要素需要处理场景几何的表示、其单独/组合的纹理和反射特性，以及发射光和入射光如何穿过它。通常基于蒙特卡罗路径追踪的高质量离线渲染可以很好地解决相关问题，但代价是数千小时的计算和千兆字节的内存空间。然而，许多需要实时真实显示的应用程序必须处理这些元素以及不同比例的某种形式的预过滤外观。我们引入了用于实时渲染的分层纹理/表面/体积方法。它们是在常规壳图和千兆像素的变体上构建的，在体积元素内为对外观至关重要的视觉现象提供新的创新近似，同时保证每个像素或每条光线的单结构查询。该研究计划深入研究这些表示形式，并将它们与当今的 GPU 设施很好地集成。这些方法和结构还与艺术家和科学家的直观控制相结合，以生成可信且连贯的复杂世界。