Real-Time Analytic Antialiased Text for 3-D Environments

A. Ellis, W. Hunt, J. Hart

Research output: Contribution to journalArticle

Abstract

Text is a crucial component of 3-D environments and virtual worlds for user interfaces and wayfinding. Implementing text using standard antialiased texture mapping leads to blurry and illegible writing which hinders usability and navigation. While super-sampling removes some of these artifacts, distracting artifacts can still impede legibility, especially for recent high-resolution head-mounted displays. We propose an analytic antialiasing technique that efficiently computes the coverage of text glyphs, over pixel footprints, designed to run at real-time rates. It decomposes glyphs into piecewise-biquadratics and trapezoids that can be quickly area-integrated over a pixel footprint to provide crisp legible antialiased text, even when mapped onto an arbitrary surface in a 3-D virtual environment.

Original languageEnglish (US)
Pages (from-to)23-32
Number of pages10
JournalComputer Graphics Forum
Volume38
Issue number8
DOIs
StatePublished - Nov 1 2019

Keywords

  • Anti-aliasing
  • CCS Concepts
  • analytic rendering
  • antialiasing
  • font rendering
  • text rendering
  • • Computer graphics → Image manipulation

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design

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