Meeting Agenda

Date:	January 28, 2004
Location:	DC 1304
Time:	1:30 PM
Chair:	Guillaume

0. Attendance

1. Adoption of the Agenda - additions or deletions

2. Coffee Hour

Coffee hour last week:

Stefanus Du Toit (forgot ?)

Coffee hour this week:

Coffee hour next week:

3. Forthcoming

Date:	February 4	February 11	February 18	February 25
Location:	DC1304	DC1304	DC1304	DC1304
Chair:	Tiberiu Popa	Zheng Qin	Gabriel Renaud	Edwin Vane
Technical Presentation:	Gabo "blue steel"	Kevin Moule	Tiberiu Popa	Zheng Qin

4. Technical Presentation

Title: Shader Algebra

Abstract: Shaders can be thought of as functions that map streams to streams, where a stream consists of a sequence of homogeneous records or equivalently, a tuple of channels corresponding to record elements. A shader operates on each input record and generates output records independently. An algebra consists of a set of objects and a set of operators that act on those objects. To define a shader algebra, we treat shader functions as first-class objects and define two binary operators: connection and combination. Connection is defined as functional composition: the outputs of one shader are fed into the inputs of another. Combination concatenates the input channels, output channels, and computations of two shaders. Similar operators can be used to manipulate streams and apply computational kernels expressed as shaders to streams. Connecting a shader to a stream applies that shader to all elements of the stream; combining streams concatenates the record definitions of those streams. In conjunction with an optimizing compiler, these operators can manipulate shaders in many useful ways, including shader specialization, without modification of the source code of the original shaders. We demonstrate these operators in the context of Sh, a metaprogramming shading language embedded in C++. In this implementation, shaders and streams are represented with objects and the shader algebra operators are implemented with operator overloading.

5. General Discussion Items

6. Action List

• Lab Rearrangement: Erin?
• Need to set net access for laptops. Net access has been fixed, but it must be made sure that it is compatible with the external university system security measures.
• Visitor from York: Need to set up a date to invite William Soukoreff from York to come down and visit on a Friday. Need to find an appropriate date...
• To help avoid viruses, when logged on to nemesis as generic, you should not read your email.

7. Conferences and Special Journal Issues

• Venue: April 13-15, 2004, Beijing, China
• Full Paper Submission: September 30, 2003 -- PASSED
• Notification of acceptance: November 30, 2003

• Venue: May 22-24, 2004; Banff Centre, Canada
• Conference URL: http://www.smartgraphics.org
• Submission deadline: Feb 09, 2004
• Notification of review results: Feb 23, 2004
• Camera ready copy due: Mar 01, 2004

• Venue: June 7-9, 2004, Annecy, France
• Conference URL: http://www.npar.org/2004/
• Paper submission deadline: October 23, 2003 -- PASSED
• Authors notified of decisions: December 19, 2003
• Camera-ready deadline: March 15, 2004

• Venue: May 17-19, 2004, London, Ontario
• Conference URL: http://www.dgp.toronto.edu/GI2004/
• Paper submission deadline: December 5, 2003 -- PASSED
• Notification of acceptance: February 27, 2004
• Poster Submission: March 26, 2004

• Venue: July 30 - August 1 2004, Winfield, Kansas
• Paper submission deadline: February 1, 2004
• Authors notified of decisions: April 1, 2004
• Camera-ready deadline: May 1, 2004

• Venue: August 8-12, Los Angeles, California
• Conference URL: http://www.siggraph.org/s2004/
• Paper submission deadline: January 21, 2004 -- PASSED
• Sketches deadline: 7 April 2004,
• Poster deadline: 19 May 2004

• Venue: August 30 - September 3, 2004, Grenoble, France
• Conference URL: http://eg04.inrialpes.fr/
• Paper abstracts due: January 28, 2004
• Paper submission deadline: February 2, 2004
• Interactive demos: April 23, 2004

• Venue: May 19-21, 2004, Konstanz - GERMANY
• Conference URL: http://www.inf.uni-konstanz.de/cgip/VisSym04/index.shtml.en
• Paper submission deadline: November 24, 2003 -- PASSED

• Venue: April 24-29,2004, Vienna, Austria
• Conference URL: http://www.chi2004.org/
• Early submissions: 6 October 2003 -- PASSED
• Late submissions: 12 January 2004

• Venue: April 8-10 (Toronto Canada)
• Conference URL: http://www.cgt.auc.ca/
• Student Game Competition
• Papers/Posters due 15th November 2003 -- PASSED

• Venue: June 16 -19, 2004, Hersonissos, Crete, Greece
• Conference URL: http://www.ics.forth.gr/cgi2004/intro.html
• Paper Submission Deadline: November 20, 2003 -- PASSED

• Venue: May 22-24, 2004, Banff Centre, Canada
• Submission deadline: Feb 09, 2004
• Notification of review results: Feb 23, 2004
• Camera ready copy due: Mar 01,2004
• Conference URL: http://www.smartgraphics.org
• Venue URL: http://www.banffcentre.ca

Symposium on COMPUTER ANIMATION (SCA)

• Venue: August 27-29, 2004, Grenoble, France
• Deadline for Abstract Submissions: April 9, 2004
• Firm Deadline for Paper Submissions: April 16, 2004
• Notification to Authors: June 1, 2004
• Deadline for Camera Ready Copy and Animation Files: June 18, 2004
• Conference URL: http://hms.upenn.edu/SCA04

8. Directors' Meeting

9. Seminars and Events

Wednesday, 28 January 2004, 3:30PM - Pure Mathematics , MC 6005

Doug Park: -- Knotted Surfaces in Symplectic 4-Manifolds
 

Thursday, 29 January 2004, 1:00PM - Computer Science , DC 1304

Jack Chi: -- Virtual Frameworks for Source Migration
 

Thursday, 29 January 2004, 3:30PM - Pure Mathematics , MC 5158

Ravi Vakil: -- A geometric Littlewood-Richardson rule
 

Friday, 30 January 2004, 3:30PM - Combinatorics and Optimization , MC 5158

Jan Kratochvil: -- Complexity of locally constrained graph homomorphisms

10. Lab Cleanup !