RE: Shadow bug

New Message Reply Date view Thread view Subject view Author view

Andrew Ng (nga++at++division.co.uk)
Wed, 13 May 1998 10:30:09 +0100

> We're using the pfLightSource mechanism on an Onyx2 with iR
> graphics to generate shadows in our application. We have found
> that with certain camera positions, some garbage geometry appears
> to be creating a shadow; by moving the camera slightly, the
> effect goes away.

I have also been using pfLightSource shadows on our Onyx iR (which has
patch 1808 installed) and have noticed the anomalies that you describe. The
only explanation I can think of is that the floor geometry is actually
shadowing itself in these situations. I had a quick go with different
values for the shadow displace and scale but couldn't come up with a
satisfactory set up.
--------------------------------------------------------------------------
  Andrew Ng (Software Engineer)
  Division Limited, 19 Apex Court, Email: nga++at++division.co.uk
  Woodlands, Almondsbury. Tel: +44 (0)1454 615554
  Bristol BS32 4JT. Fax: +44 (0)1454 615532

=======================================================================
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 - 17:57:23 PDT

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