1.

2. 3D Slide Show Transitions

• Adding OpenGL-Accelerated Transitional Effects To Impress

Google Summer of Code 3. Me

DigiPen Institute of Technology, Redmond WA, USA

Senior earning a Baccalaureate of Science

• Major in RTIS

• Minor in Physics

• Minor in Mathematics

• Experience:

2 Years Graphics Engines engineering for Video Games

3 Years OpenOffice.org User. (3 Years Starving Student)

College and Experience 4. Project Overview

Google Summer of Code '07

My Mentor:

Project Leader: Thorsten Behrens

WANTED:

Student with extensive OpenGL experience.

My Summer Employer 5. Acceptance

Hola - Thorsten

Buenos Dias -Radek

Linux

• Cvs

• cws

• ./configure

• Dmake

• Build debug=true

TDD

6. A Simple Plan

A new OpenGL context would be created

Compatible with the window and optimally close to the window and bitmap layout

..then I would register the two bitmaps

Mipmap them and store their OpenGL handle

From there each frame would have an interpolated transition drawn on the screen.

It all started with an Idea and an Assumption 7. First Draft How I Started

I studied the Linux OpenGl tutorial (nehe.gamedev.net)

Created a system demo

Decided on implementation of the transition

Gave massive amounts of freedom to the Transition creator.

8. Stupid 9. Rethinking it

Scaling, Rotating, and Translating had to be guaranteed to be reversible with no effects.

Knowledge of position or aspect ratio should never be required of the transition creator.

The slide should always be facing forward when handed to the transition creator.

Texture Coordinates should be determined only by the point on the slide.

That didnt workso I tried somethingdifferent 10. Much Better 11. Let's Make One!

Let's make one I've never thought of, right now.

Who's got a simple idea?

OK, Start your watches.

12. RESULT! .And now for the finished product 13. From Sandbox to Beach

Lots of patience and help from my mentors and LXR

I carefully worked my way through the puzzle

How did I get out of my Demoand into OpenOffice.org? 14. My Future

More creative power to the artists

Create an import system

More power to the programmers to allow for a cutting edge look

Make The Redmond and Santa Clara based developers eat our Dust

What I would add 15. Your Future

So What do you want?

16. Questions

Questions?

17. Thanks

Thorsten Behrens

Radek Doulk

Google

OpenOffice.org Community

Sun Microsystems

All of you for attending this Presentation