• Publications
  • Influence
Tiled shadow maps
  • J. Arvo
  • Computer Science
    Proceedings Computer Graphics International, .
  • 2004
TLDR
A new hardware accelerated algorithm which is capable of adjusting shadow map sampling rates inside a shadow map of constant size is introduced, achieved by tiling the light view and changing the sampling quality according to a heuristical analysis.
Alias-Free Shadow Maps using Graphics Hardware
  • J. Arvo
  • Computer Science
    J. Graph. Tools
  • 1 January 2007
TLDR
A new algorithm is presented that inherits the strengths of alias-free shadow maps and has an efficient hardware-accelerated implementation and also presents novel acceleration techniques and proposes a few hardware modifications to enable real-time implementations.
Optimized Shadow Mapping Using the Stencil Buffer
TLDR
This work optimize the performance of a hardware-accelerated shadow mapping algorithm by rasterizing the light frustum into the stencil buffer, in a manner similar to the shadow volume algorithm.
Tiled shadow maps
  • J. Arvo
  • Computer Science
  • 16 June 2004
TLDR
A new hardware accelerated algorithm which is capable of adjusting shadow map sampling rates inside a shadow map of constant size is introduced, achieved by tiling the light view and changing the sampling quality according to a heuristical analysis.
Approximate Soft Shadows win an Image‐Space Flood‐Fill Algorithm
TLDR
This paper proposes an efficient image‐based approach for computing soft shadows based on shadow mapping and uses pixel‐based visibility computations for rendering penumbra regions directly into the screen‐space using programmable graphics hardware.
Compressed shadow maps
TLDR
This paper presents a compressed shadow map algorithm, which reduces memory consumption by representing lit surfaces with endpoints of intermediate line segments as opposed to the conventional array-based pixel structures, and helps with the shadow map self-shadowing problems.
Current State of Ontology Matching. A Survey of Ontology and Schema Matching
TLDR
The aim of this report is to summarize the knowledge about the state-of-the-art solutions from the research literature, discuss how the methods work on different application domains, and analyze pros and cons of different open source and academic tools in the commercial world.
Hardware Accelerated Soft Shadows using Penumbra Quads
TLDR
A new fully hardware accelerated penumbra map algorithm which stores additional penumbras information into separate penumbRA maps which is capable of generating approximate soft shadows on both sides of the hard shadow boundaries at real time frame rates.
3D Mesh Simplification. A survey of algorithms and CAD model simplification tests
TLDR
This paper surveys mesh simplification algorithms in general and focuses especially to algorithms that can be used to simplify CAD models, and test some commonly known algorithms with real world CAD data and characterize some new CAD related simplifying algorithms that have not been surveyed in previous mesh simplifying reviews.
Extended panorama tracking algorithm for augmenting virtual 3D objects in outdoor environments
TLDR
Extensions to a previous panoramic tracking algorithm, which is a visual tracking method for unprepared outdoor use cases, are presented, and test results indicate that the accuracy of the tracker is sufficient for visualization tasks in outdoor environments.
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