quote:It seems not!. Jim Blinn''s W Pleasure W Fun article mentions floating point Z buffers - and shows how they make the artifacts worse!

y''know it''s illegal to mention an article on these forums that would help and not give a link, or info on how to get that article

I think that rule should be in the forum rules/faqs too.

:::Al::: [Triple Buffer V2.0] - Resource leak imminent. Memory status: Fragile

Its from one of the "Jimm Blinn''s corner" columns in the IEEE Computer Graphics and Applications journal.

http://www.computer.org/cga/cg1998/g3toc.htm


It''s also republished in two of his books:

Jim Blinn''s Corner: A Trip Down The Graphics Pipeline
Jim Blinn''s Corner: Notation, Notation, Notation


The article isn''t about Z buffers as such, more about what W represents in various spaces and things you can do with it. He takes a brief look at Z buffers and their problems (including some nice graphs), and considers using W for depth buffering instead (i.e. what is now known as W buffering).



--
Simon O''Connor
Creative Asylum Ltd
www.creative-asylum.com

muchos gracias

:::Al::: [Triple Buffer V2.0] - Resource leak imminent. Memory status: Fragile