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SIGGRAPH
1994
ACM

FBRAM: a new form of memory optimized for 3D graphics

10 years 3 days ago
FBRAM: a new form of memory optimized for 3D graphics
FBRAM, a new form of dynamic random access memory that greatly accelerates the rendering of Z-buffered primitives, is presented. Two key concepts make this acceleration possible. The first is to convert the read-modify-write Z-buffer compare and RGB blend into a single write only operation. The second is to support two levels of rectangularly shaped pixel caches internal to the memory chip. The result is a 10 megabit part that, for 3D graphics, performs read-modify-write cycles ten times faster than conventional 60 ns VRAMs. A four-way interleaved 100 MHz FBRAM frame buffer can Z-buffer up to 400 million pixels per second. Working FBRAM prototypes have been fabricated. CR Categories and Subject Descriptors: I.3.1 [Computer Graphics]: Hardware Architecture; I.3.3 [Computer Graphics]: Picture/ Image Generation Display algorithms; I.3.7 [Computer Graphics]: Three Dimensional Graphics and Realism. Additional Keywords and Phrases: 3D graphics hardware, rendering, parallel graphics algorith...
Michael F. Deering, Stephen A. Schlapp, Michael G.
Added 10 Aug 2010
Updated 10 Aug 2010
Type Conference
Year 1994
Where SIGGRAPH
Authors Michael F. Deering, Stephen A. Schlapp, Michael G. Lavelle
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