Light Shapes
| Autor: | Sylvia C. Pont, Susan F. te Pas, Huib de Ridder, Tatiana Kartashova |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Viewport
General Computer Science Computer science business.industry 05 social sciences ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 020207 software engineering Experimental and Cognitive Psychology 02 engineering and technology Visual appearance Grid 050105 experimental psychology Theoretical Computer Science Visualization Rendering (computer graphics) Computer graphics 0202 electrical engineering electronic engineering information engineering Radiance 0501 psychology and cognitive sciences Computer vision Artificial intelligence business Light field ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | ACM Transactions on Applied Perception. 16:1-17 |
| ISSN: | 1544-3965 1544-3558 |
| Popis: | In computer graphics, illuminating a scene is a complex task, typically consisting of cycles of adjusting and rendering the scene to see the effects. We propose a technique for visualization of light as a tensor field via extracting its properties (i.e., intensity, direction, diffuseness) from (virtual) radiance measurements and showing these properties as a grid of shapes over a volume of a scene. Presented in the viewport, our visualizations give an understanding of the illumination conditions in the measured volume for both the local values and the global variations of light properties. Additionally, they allow quick inferences of the resulting visual appearance of (objects in) scenes without the need to render them. In our evaluation, observers performed at least as well using visualizations as using renderings when they were comparing illumination between parts of a scene and inferring the final appearance of objects in the measured volume. Therefore, the proposed visualizations are expected to help lighting artists by providing perceptually relevant information about the structure of the light field and flow in a scene. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|