Non-photorealistic virtual environments

  • Authors:
  • Allison W. Klein;Wilmot Li;Michael M. Kazhdan;Wagner T. Corrêa;Adam Finkelstein;Thomas A. Funkhouser

  • Affiliations:
  • Princeton University;Princeton University;Princeton University;Princeton University;Princeton University;Princeton University

  • Venue:
  • Proceedings of the 27th annual conference on Computer graphics and interactive techniques
  • Year:
  • 2000

Quantified Score

Hi-index 0.00

Visualization

Abstract

We describe a system for non-photorealistic rendering (NPR) of virtual environments. In real time, it synthesizes imagery of architectural interiors using stroke-based textures. We address the four main challenges of such a system — interactivity, visual detail, controlled stroke size, and frame-to-frame coherence — through image based rendering (IBR) methods. In a preprocessing stage, we capture photos of a real or synthetic environment, map the photos to a coarse model of the environment, and run a series of NPR filters to generate textures. At runtime, the system re-renders the NPR textures over the geometry of the coarse model, and it adds dark lines that emphasize creases and silhouettes. We provide a method for constructing non-photorealistic textures from photographs that largely avoids seams in the resulting imagery. We also offer a new construction, art-maps, to control stroke size across the images. Finally, we show a working system that provides an immersive experience rendered in a variety of NPR styles.