[comp.graphics] Dore'

saponara@batcomputer.tn.cornell.edu (John Saponara) (05/12/88)

Here's an updated version of an article I wrote for some people a few months
ago.  There have been many more articles which have appeared since then, so
don't consider the following as comprehensive.  I'm interested in anyone's
opinions of this rendering package.


Dore'
-----

There is a new rendering software package by Ardent called Dore'
(rhymes with "moray" - there should be an up-accent over that "e" in Dore).
Ardent is the new name for Dana Computer Inc (i.e. the "single-user
supercomputer/supergraphics" people.  Their "Titan" minisupercomputer is due
out realsoonnow).  Dore' stands for "Dynamic Object-Rendering Environment".
The thrust of their marketing approach is "sell it cheap and make it a defacto
standard," similar to Sun's NFS (Network File System) strategy.

The places I've seen articles so far is "Electronics", February 4, 1988, on
pages 69-70, and "Mini-Micro Systems", February 1988, pages 22-23.  The
first article offers more detail.  I don't really want to rehash either
article in full.  The salient points (to me) about Dore' are:

	(1) Toolkit approach.
	(2) Can render using vectors, hidden surface, or ray tracing.
	(3) Hierarchical, object oriented system.
	(4) Five object classes:
	    (a) primitives (including points, curves, polygons, meshes,
		quadrics, and NURBS (non-uniform rational B-splines),
	    (b) appearance attributes (material properties, inc. solid texture
		maps and environmental reflection maps),
	    (c) geometric attributes (modeling matrices),
	    (d) studio objects (camera, lights) (I like this term!),
	    (e) organizational objects (hierarchy, and evidentally the ability
		to define function calls inside the environment which call
		routines in the application program.  No idea how this works).
	(5) Quoted times: 0.1 second for vector, 10 seconds for hidden
	    surface, 100 seconds ray-traced (I assume on the Titan.  No
	    idea what kind of scene complexity or resolution).
	(6) Written in C.
	(7) "Open" system - source code sold in hopes of selling Dore' on other
	    systems.

The best part (for universities and research labs) is the price: $250 for
a source code license - not sure what the cost is for source code maintenance
(vs. $15000 for commercial users plus $5000/year after the first year).  Per
copy binary license is $200.

Presently the Dore' Programmer's Guide and Reference Manual are being sold by
Ardent for $25 each (as draft versions).  They hope to start shipping the
software package in June, last I heard.

I am teaching the ray-tracing section of "A Consumer's and Developer's Guide
to Image Synthesis" at SIGGRAPH this year, so definitely want to know more.
I would also like more information just out of curiosity.  So, you university
people, please go out there and get one - seems like a real bargain.  The
contact info for Ardent is (no, I don't work for them):

	Ardent Computer Corp
	550 Del Rey Ave
	Sunnyvale, CA  94086
	408-732-2806

p.s.  In case you have not been able to track down the two articles previously
mentioned about Dore', there's now a third (that I know of):  it's in "Computer
Design", Feb 15, 1988, pages 30-31.  Pretty much like the other articles (i.e.
cast from the same press release).

mec@ardent.UUCP (Michael Chastain) (05/14/88)

In article <4781@batcomputer.tn.cornell.edu>, saponara@batcomputer.tn.cornell.edu (John Saponara) writes:
> (Good description of Dore' rendering package)

> The contact info for Ardent is (no, I don't work for them):
> 
> 	Ardent Computer Corp
> 	550 Del Rey Ave
> 	Sunnyvale, CA  94086
> 	408-732-2806
> 

Ardent Computer has moved.  Our new address/phone is:

	Ardent Computer
	880 Maude Ave
	Sunnyvale, CA  94086
	408-732-0400

Michael Chastain                              785 N Fair Oaks #5
mec@ardent.com                                Sunnyvale, 94086
"She who dies with the most *friends* wins."  408-720-1242
-- 
Michael Chastain                              785 N Fair Oaks #5
mec@ardent.com                                Sunnyvale, 94086
"She who dies with the most *friends* wins."  408-720-1242