IMEM: An Intelligent Memory for Bump- and Reflection-Mapping
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Date
1998
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Publisher
The Eurographics Association
Abstract
Data path simplification in the context of reflection- and bumpmapping hardware opens new solutions in the design of rendering and shading circuits. We are proposing a novel approach to rendering bump- and reflection-mapped surfaces, where the local geometry defining bump-maps is transformed on-the-fly prior to surface shading. Applying angular encoding to normal vectors results in narrower data paths and permits hardware integration of look-up tables of acceptable size. A special-purpose logic-embedded memory architecture is presented, where bump- and reflection-mapping of textured surfaces are executed by an intelligent memory device. High-performance surface shading is achieved by making use of precomputed shading- and reflection-map coordinate generation tables, and considering cache coherence of pixel-to-pixel normal vectors. Such a dedicated memory chip can easily be interfaced to a standard rasterizer, in place of texture memory to offer bump-, texture- and reflection-mapping hardware support.
Description
@inproceedings{:10.2312/EGGH/EGGH98/113-122,
booktitle = {SIGGRAPH/Eurographics Workshop on Graphics Hardware},
editor = {S. N. Spencer},
title = {{IMEM: An Intelligent Memory for Bump- and Reflection-Mapping}},
author = {Kugler, Anders},
year = {1998},
publisher = {The Eurographics Association},
ISSN = {1727-3471},
ISBN = {0-89791-097-X},
DOI = {/10.2312/EGGH/EGGH98/113-122}
}