My team focuses on the use of high-performance computing, available in desktops and notebooks (and tablets), to develop design paradigms and user experiences of the future.

Some specific topics that the group focuses on are:

Animation — Inverse Kinematics, Skinning, Articulated Rigid Bodies
Simulation — Fluid Simulation, Viscoelastic Lattice-Boltzmann Simulation for Oil Paint, Rigid Bodies, Deformable Models & Cloth, Physically Based Curve Design
Computational Imaging — PDEs for Image Enhancement, Super-resolution, Inverse Problems in Image Processing, Deblurring and Defocus, Depth from Defocus, Lighting Estimation, Intrinsic Images, Shape from Shading, Image Relighting
Multi-CPU and GPU computations, Parallel Algorithms, Scheduling and Cache Performance

The research included 9 research internships, 6 university collaborations, 3 PhD topics. Product groups have shown a keen interest in these technologies. Initiatives such as Image Relighting, Intrinsic Images and Shape Estimation push the boundaries of Computational Imaging and are poised to revolutionize aspects of digital photography and content creation.

Under my leadership, consultation & mentoring, and through my direct research contribution, I shipped the following flagship product features

Graphics Math Library (GML), a SSE optimized small vector-matrix-quaternion library, CS4, CS5
Inverse Kinematics and Skinning, Flash Pro CS4
Physics for Flash, Flash Pro CS5
Bristle Brush, realistic simulation of artist’s brush on canvas, Photoshop & Illustrator CS5

You must have wondered how they did the hair in "Shrek The Third", the foliage in "Madagascar", and recently hair in "How to Train Your Dragon". Before joining Adobe, I worked at PDI/DreamWorks for four years (2003-2006) developing some cool special effects and character dynamics technologies — strand & hair dynamics, rigid bodies, particles and fluids.

I finished my PhD from MIRALab, University of Geneva in 2003.

Projects

Intrinsic Images (feature), Monocular Depth Perception (internship)

Courses

Organizer — "Strands and Hair: Modeling, Animation, and Rendering", course 33, SIGGRAPH 2007
Organizer — "Introduction to Articulated Rigid Body Dynamics", course 2, SIGGRAPH 2005
Organizer — "Collision Detection and Proximity Queries", course 14, SIGGRAPH 2004
Presenter — "Photorealistic Hair Modeling, Animation, and Rendering", course 9, SIGGRAPH 2004
Presenter — "Photorealistic Hair Modeling, Animation, and Rendering", course 34, SIGGRAPH 2003

Thesis

Sunil Hadap, "Hair Simulation", PhD Dissertation, 2003
Sunil Hadap, "Design of Robotics Teaching Aid", Master of Design Thesis, 1995
Sunil Hadap, "Design of Weather Data Collection Platform", Master of Design Thesis, 1995
Sunil Hadap, "Multi-block Grid Generation Toolkit", Bachelor of Technology Thesis, 1993

Invited Talks

"DAEs in Solution of Stiff Articulated Body Dynamics", Honda Research, USA, 2004
"Games Development", Intel's Developer Conference, India, 1997

Publications

Non-photorealistic, Depth-based Image Editing

Lopez-Moreno, J., Jimenez, J., Hadap, S., Anjyo, K., Reinhard, E., and Gutierrez, D. (Jan 31, 2011)

Computer and Graphics, Volume 35, Issue 1, February, 2011

Stylized Depiction of Images Based on Depth Perception

Lopez-Moreno, J., Jimenez, J., Hadap, S., Reinhard, E., Anjyo, K., and Gutierrez, D. (Jan 31, 2010)

Non-photorealistic Animation and Rendering (NPAR), 2010 Best Paper Award

Compositing Images through Light Source Detection

Lopez-Moreno, J., Hadap, S., Reinhard, E., and Gutierrez, D. (Jan 31, 2010)

Computers and Graphics, Volume 34, Issue 6, December, 2010

Bristle Tip and Mixer Brush

Hadap, S., DiVerdi, S.,and Krishnaswamy, A. (Jan 31, 2010)

Poster, NPAR 2010

Industrial-Strength Painting with a Virtual Bristle Brush

DiVerdi, S., Krishnaswamy, A., and Hadap, S. (Jan 31, 2010)

VRST 2010

Industrial-Strength Painting with a Virtual Bristle Brush

DiVerdi, S., Krishnaswamy, A., and Hadap, S. (Jan 31, 2010)

In Proc. of the Symposium on Virtual Reality Software and Technology, 119-126

Regularized Depth from Defocus

Namboodiri, V.P., Chaudhuri, S., and Hadap, S. (Jan 31, 2008)

ICIP 2008

Oriented Strands - dynamics of stiff multi-body system

Hadap, S. (Jan 31, 2006)

ACM SIGGRAPH / Eurographics Symposium on Computer Animation, 2006

Rendering Photo-realistic Hair using Graphics Hardware

Hadap, S. and Magnenat-Thalmann, N. (Jan 31, 2003)

Technical Report, 2003

modeling-dynamic-hair-as-a-continuum

Hadap, S. and Magnenat-Thalmann, N. (Aug 31, 2001)

Computer Graphics Forum, Volume 20, Issue 3, Eurographics 2001 Proceedings, Manchester, United Kingdom, September 2001

State of the Art in Hair Simulation

Magnenat-Thalmann, N., Hadap, S. and Kalra, P. (Jun 27, 2000)

International Workshop on Human Modeling and Animation, Seoul, Korea, June 28--29, 2000

Interactive Hair Styler based on Fluid Flow

Hadap, S. and Magnenat-Thalmann, N. (Jan 31, 2000)

Eurographics Workshop on Computer Animation and Simulation'2000, Interlaken 2000

Animating Wrinkles on Clothes

Hadap, S., Bangarter, E., Volino, P. and Magnenat-Thalmann, N (Jan 31, 1999)

IEEE Visualization '99, San Francisco 1999

MultiBlock Grid Generation for Structured Grids

Mukherjee, S., Apte, M., Isaacs, A., Hadap, S. and Shevare, Dr. G.R. (Mar 31, 1996)

5th International Conference on Numerical Grid Generation for Computational Fluid Simulation, April, 1996

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