Direct non-photorealistic renderings of procedural geometry

程序几何的直接非真实感渲染

• 批准号: 413891298
• 负责人: Professor Dr. Oliver Deussen
• 金额: --
• 依托单位: Arbeitsgruppe Visual Computing
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/413891298?language=en
• 关键词: Direct; non; photorealistic; renderings; procedural

The focus of the project is the investigation and evaluation of methods for creating a direct linkage between procedural generation methods for complex objects (landscapes, urban structures) and non-photorealistic rendering (NPR) methods, which automatically creates abstract renditions of these objects in, e.g. a painterly look. Traditionally, for producing such abstract renditions objects are first rendered photorealistically and then converted into abstract, non-photorealistic representations in a second step. The combination of procedural generation and abstract rendering methods allows us to achieve methods, which are able to obtain required additional information directly from a scene without being dependent on a photorealistic intermediate image. By creating a direct link, information can be used that improves not only the quality of the resulting non-photorealistic representations, but includes also object-specific or context-related information (spatial depth, object weight and type). Using three model scenarios that focus on complex city models, urban spaces and nature, this combination is exemplarily investigated. Different abstraction algorithms will be implemented and different procedural generation methods will be tested for their suitability for a direct representation. For example, it must be ensured that the geometrical abstraction has an adequate correspondence in the procedural generation.

该项目的重点是研究和评估在复杂对象（景观、城市结构）的程序生成方法和非真实感渲染（NPR）方法之间建立直接联系的方法，该方法自动创建这些对象的抽象再现，例如绘画般的外观传统上，为了产生这种抽象再现，首先对对象进行真实感渲染，然后在第二步中将其转换为抽象的、非真实感表示。程序生成和抽象渲染方法的结合使我们能够实现能够直接从场景获取所需附加信息的方法，而不依赖于真实感中间图像。通过创建直接链接，可以使用的信息不仅可以提高最终的非真实感表示的质量，还可以包括特定于对象或上下文相关的信息（空间深度、对象重量和类型）。使用关注复杂城市模型、城市空间和自然的三种模型场景，对这种组合进行了示例性研究。将实现不同的抽象算法，并测试不同的程序生成方法是否适合直接表示。例如，必须确保几何抽象在程序生成中具有足够的对应性。