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Article #225

Re: Renderer Performance, Interactivity

#225
From: Roy Hashimoto
Date: Thu, 21 Jan 1993 18:06
22 lines
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In article <1993Jan21.052834.29868@cc.gatech.edu> zundel@cc.gatech.edu (Eric Zundel Ayers) writes:
>Is it possible that the renderer module for Explorer 2.0 will be 
>substantially quicker than the current version?   Is it possible that there is a quicker renderer with less features
>available (or could one be made available?)

Geometry transmission time from one module to another has been one focus of
the 2.0 effort.  Performance has been improved in this area.  Actual rendering
performance has also been improved for certain primitives and situations.
Another source of inefficiency is the amount of memory that the Render module
chews up; this has also been addressed.

>The pick-box is nice,
>but we'd like to get information about the original geometry from the
>renderer, such as  "spheres 34, 35, and 36 are in the selection set"
>and then, say,  perform an operation that makes those spheres transparent.

The 2.0 beta contains a new picking scheme for Render that should provide
you with the information you want.  You can label objects in your module
and have those labels returned to you in the pick information.

Roy Hashimoto
hashimoto@sgi.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!sgigate!odin!fido!hashimoto
From: hashimoto@sgi.com (Roy Hashimoto)
Newsgroups: comp.graphics.explorer
Subject: Re: Renderer Performance, Interactivity
Keywords: Renderer, geometry, Glyphmaker
Message-ID: <1jmom9INN7ld@fido.asd.sgi.com>
Date: 21 Jan 93 18:06:01 GMT
References: <1993Jan21.052834.29868@cc.gatech.edu>
Organization: Silicon Graphics, Inc.
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