Re: SGIX_list_priority extension ?

New Message Reply Date view Thread view Subject view Author view

Simon Hayhurst (simon++at++neu.sgi.com)
Wed, 18 Sep 1996 10:09:27 +0200

Lionel Maiaux wrote:
>
> Hi,
>
> Does anybody know which release of performer will use SGIX_list_priority
> extension (on iR) and when this release will be available ?
>
> --

Since Performer is Immediate mode centric, I can't see that there is a
strong
case for a Performer version to specially support this extension.

If you use Display lists in your own Open GL code within Performer, then
this extension will be of immense use to you.

You will require Patch 1355 to gain access to this extension on IR.

The limitation is DMA (ie fast transfer) for up to 128MB of Display
list.

The information I have then suggests that you should be able to get :-
        175MB per second for DMA main memory to Geom engine
        300MB per second for cache to Geom engine.

In both cases the display lists must be storable in Geom Engine format,
so as M.T.J
pointed out in another mail, polys with textures bound aren't cacheable.

Simon Hayhurst Phone (41)-38-433733
The Computarium Fax (41)-38-433905
Core Technology Group Voice Mail 5-7269
SGI, Cortaillod, Switzerland Internet simon ++at++
neu.sgi.com
--------------------------------------------------------------------------------
=======================================================================
List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
            Submissions: info-performer++at++sgi.com
        Admin. requests: info-performer-request++at++sgi.com

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:53:33 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.