Reading: "Harold: A World Made of Drawings"

Abstract

• Virtual worlds created in Harold are rendered with a stroke-based system so that a world will maintain a hand-drawn appearence

Introduction

• An ideal VR system would be capable of much expressiveness and interactivity, but that's not computationally tractable-> limited form
• Previous research -
  • 1 Geometric approach: Given a rendering, the system tries to recreate a geometric description of the scene. New renderings can then be obtained from arbitary viewpoints.
  • 2 Image-based approach: redisplay the original input image, modified to reflect new camera parameters.

Contributions

• An approach to 3D scene reconstruction that combines features of other approaches as well as novel ideas, and integrates them with a particular set of interface choices to create an interactive system.

Strength and Weakness

• Useful for rapid idea sketching; prototype drawing
• The relationships between objects change as the viewpoint changes
• User interface seems to be very accessible since most of the operations are invoked by clicking on an object or by drawing a stroke

Ideas for Extension

• The ability to manupilate the camera view in the 3D environment seems helpful in creating rough sketchs in the initial phase of filmmaking.
• Can be used as a helpful guide for space designers

Open Questions

• Is it possible to add the function of importing 2D images outside to help create a 3D environment in the software
• Might be combined with "Mischeif"'s feature of zooming up /out