Per H. Christensen
Most Recent Affiliation(s):
- Mental Images, Senior Software Designer
Other / Past Affiliation(s):
- Square USA, Inc.
- Pixar Animation Studios
Location:
- Seattle, Washington, United States of America
Bio:
SIGGRAPH 2018
Per Christensen is a principal software developer in Pixar’s RenderMan group in Seattle. He received an M.Sc. degree in electrical engineering from the Technical University of Denmark and a Ph.D. in computer science from the University of Washington in Seattle. Before joining Pixar, he worked at Mental Images in Berlin and at Square USA in Honolulu. His movie credits include every Pixar movie since Finding Nemo, and he has received an Academy Award for his contributions to the development of point-based global illumination and ambient occlusion.
SIGGRAPH 2014
Per Christensen is a senior software developer in Pixar’s RenderMan group in Seattle. His main research interests are efficient ray tracing and global illumination in very complex scenes. He received an M.Sc. degree in electrical engineering from the Technical University of Denmark and a Ph.D. in computer science from the University of Washington in Seattle. Before joining Pixar, he worked at mental images in Berlin and at Square USA in Honolulu. His movie credits include Finding Nemo, The Incredibles, Cars, Ratatouille, Wall-E, Up, Toy Story 3, Cars 2, Brave, and Monsters University. He has received an Academy Award for his contributions to the development of point-based global illumination and ambient occlusion.
SIGGRAPH 2012
Per Christensen is a senior software developer in Pixar’s RenderMan group in Seattle. His main research interests are efficient ray tracing and global illumination in very complex scenes. He received an M.Sc. degree in electrical engineering from the Technical University of Denmark and a Ph.D. in computer science from the University of Washington in Seattle. Before joining Pixar, he worked at Mental Images in Berlin and at Square USA in Honolulu. His movie credits include Finding Nemo, The Incredibles, Cars, Ratatouille, Wall-E, Up, Toy Story 3, and Cars 2. He has received an Academy Award for his contributions to the development of point-based global illumination and ambient occlusion.
SIGGRAPH 2010
Per Christensen is a senior software developer in Pixar’s RenderMan group. His main research interest is efficient ray tracing and global illumination in complex scenes. Before joining Pixar, he worked at Mental Images and at Square USA. He received an M.Sc. degree in electrical engineering from the Technical University of Denmark and a Ph.D. in computer science from the University of Washington in Seattle. His movie credits include Finding Nemo, The Incredibles, Cars, Ratatouille, Wall-E, and Up. He has received an Academy Award for his part in the development of point-based rendering for indirect illumination and ambient occlusion (with Michael Bunnell and Christophe Hery).
SIGGRAPH 2008
Per Christensen is a senior software developer in Pixar’s RenderMan group in Seattle. His main research interest is efficient ray tracing and global illumination in very complex scenes. Before joining Pixar, he worked at Mental Images in Berlin and at Square USA in Honolulu. He received an M.Sc. degree in electrical engineering from the Technical University of Denmark and a Ph.D. in computer science from the University of Washington in Seattle.
Learning Category: Jury Member:
Animation/Video(s):
Experience(s):
Learning Category: Presentation(s):
![My Favorite Samples](https://history.siggraph.org/wp-content/uploads/2022/02/2019-15-My-Favorite-Samples-150x150.jpg)
Type: [Courses]
My Favorite Samples Organizer(s): [Keller]
Presenter(s): [Ahmed] [Keller] [Georgiev] [Christensen] [Pharr]
Entry No.: [15]
[SIGGRAPH 2019]
![Design and Implementation of Modern Production Renderers](https://history.siggraph.org/wp-content/uploads/2022/03/2018-Panels-02-Design-and-Implementation-of-Modern-Production-Renderers-150x150.jpg)
Type: [Panels]
Design and Implementation of Modern Production Renderers Presenter(s): [Pharr] [Burley] [Christensen] [Fajardo] [Fascione] [Kulla]
Entry No.: [02]
[SIGGRAPH 2018]
![Path Tracing in Production - Part 1: Production Renderers](https://history.siggraph.org/wp-content/uploads/2022/02/2017-16-Path-Tracing-in-Production-Part-1-Production-Renderers-150x150.jpg)
Type: [Courses]
Path Tracing in Production - Part 1: Production Renderers Organizer(s): [Fascione]
Presenter(s): [Hanika] [Fajardo] [Christensen] [Burley] [Green]
Entry No.: [16]
[SIGGRAPH 2017]
![An Approximate Reflectance Profile for Efficient Subsurface Scattering](https://history.siggraph.org/wp-content/uploads/2022/10/2015-Talks-Christensen_An-Approximate-Reflectance-Profile-for-Efficient-Subsurface-Scattering-01-150x150.jpg)
Type: [Talks (Sketches)]
An Approximate Reflectance Profile for Efficient Subsurface Scattering Presenter(s): [Christensen]
Entry No.: [25]
[SIGGRAPH 2015]
![The Path-Tracing Revolution in the Movie Industry](https://history.siggraph.org/wp-content/uploads/2022/01/2015-9-Writing-Fast-Image-Processing-Code-With-Halide-150x150.jpg)
Type: [Courses]
The Path-Tracing Revolution in the Movie Industry Organizer(s): [Keller]
Presenter(s): [Keller] [Fascione] [Fajardo] [Georgiev] [Christensen] [Hanika] [Nichols] [Eisenacher]
Entry No.: [08]
[SIGGRAPH 2015]
![Multiresolution radiosity caching for global illumination in movies](https://history.siggraph.org/wp-content/uploads/2024/05/2012-Talks-Christiansen_Multiresolution-Radiosity-Caching-150x150.jpg)
Type: [Talks (Sketches)]
Multiresolution radiosity caching for global illumination in movies Presenter(s): [Christensen] [Harker] [Shade] [Schubert] [Batali]
[SIGGRAPH 2012]
![State of the Art in Photon-Density Estimation](https://history.siggraph.org/wp-content/uploads/2022/01/2012-26-State-of-the-Art-in-Photon-Density-Estimation-150x150.jpg)
Type: [Courses]
State of the Art in Photon-Density Estimation Organizer(s): [Hachisuka] [Jarosz]
Presenter(s): [Hachisuka] [Jarosz] [Bouchard] [Christensen] [Frisvad] [Jakob] [Jensen] [Kaschalk] [Knaus] [Selle] [Spencer]
Entry No.: [26]
[SIGGRAPH 2012]
![Global Illumination Across Industries](https://history.siggraph.org/wp-content/uploads/2021/12/2010-22-Global-Illumination-Across-Industries-150x150.jpg)
Type: [Courses]
Global Illumination Across Industries Organizer(s): [Křivánek]
Presenter(s): [Fajardo] [Christensen] [Tabellion] [Bunnell] [Larsson] [Kaplanyan]
Entry No.: [22]
[SIGGRAPH 2010]
![Practical Global Illumination With Irradiance Caching](https://history.siggraph.org/wp-content/uploads/2021/06/2008-Course-Cover-23-Practical-Global-Illumination-With-Irradiance-Caching-150x150.jpg)
Type: [Courses]
Practical Global Illumination With Irradiance Caching Organizer(s): [Křivánek] [Gautron]
Presenter(s): [Ward] [Jensen] [Christensen] [Tabellion]
Entry No.: [23]
[SIGGRAPH 2008]
![High-Quality Rendering Using Ray Tracing and Photon Mapping](https://history.siggraph.org/wp-content/uploads/2021/06/2007-Course-Cover-08-High-Quality-Rendering-Using-Ray-Tracing-and-Photon-Mapping-150x150.jpg)
Type: [Courses]
High-Quality Rendering Using Ray Tracing and Photon Mapping Organizer(s): [Jensen]
Presenter(s): [Christensen]
Entry No.: [08]
[SIGGRAPH 2007]
![Global Illumination for Interactive Applications and High-Quality Animations](https://history.siggraph.org/wp-content/uploads/2021/10/2003-Course-Cover-27-Global-Illumination-for-Interactive-Applications-and-High-Quality-Animations-150x150.jpg)
Type: [Courses]
Global Illumination for Interactive Applications and High-Quality Animations Organizer(s): [Damez] [Slusallek]
Presenter(s): [Damez] [Slusallek] [Christensen] [Myszkowski] [Wald] [Walter]
Entry No.: [27]
![RenderMan, Theory and Practice](https://history.siggraph.org/wp-content/uploads/2021/10/2003-Course-Cover-09-RenderMan-Theory-and-Practice-150x150.jpg)
Type: [Courses]
RenderMan, Theory and Practice Organizer(s): [Batali]
Presenter(s): [Batali] [Bashforth] [Bernardi] [Christensen] [Jordan] [Laur] [Quaroni] [Tomson] [Wooten]
Entry No.: [09]
![A Practical Guide to Global Illumination Using Photon Mapping](https://history.siggraph.org/wp-content/uploads/2021/10/2002-43-Course-Cover-A-Practical-Guide-to-Global-Illumination-Using-Photon-Mapping-150x150.jpg)
Type: [Courses]
A Practical Guide to Global Illumination Using Photon Mapping Organizer(s): [Jensen]
Presenter(s): [Jensen] [Christensen] [Kato] [Suykens]
Entry No.: [43]
[SIGGRAPH 2002]
Role(s):
- ACM SIGGRAPH Village Presenter
- Animation Director
- Course Presenter
- Panel Presenter
- Talk (Sketch) Presenter
- Technical Papers Jury Member