Off the Beaten Path (Tracing)

Talks

Off the Beaten Path (Tracing)

Sunday, 9 August 3:45 PM - 5:35 PM | Los Angeles Convention Center, Room 152 Session Chair: Chris Wyman, NVIDIA Corporation


Building the Black Hole in "Interstellar": The Gravitational Renderer

"Interstellar" was the first feature film to attempt to depict a physically accurate vision of a black hole. Close collaboration between the production's scientific advisor and the visual effects team gave rise to new techniques for rendering in curved space-time.

Oliver James
Double Negative Visual Effects

Sylvan Dieckmann
Double Negative Visual Effects

Simon Pabst
Double Negative Visual Effects

Paul-George Roberts
Double Negative Visual Effects

Kip Thorne
California Institute of Technology

Stackless Ray Tracing of Patches from Feature-Adaptive Subdivision on GPUs

OpenSubdiv is the de-facto industry standard for therepresentation of subdivision surfaces. Its feature-adaptive subdivision allows for efficient display using rasterization hardware. Based on this feature-adaptive refinement, this efficient algorithm for ray tracing generates patches up to almost floating-point precision.

Nikolaus Binder
NVIDIA Corporation

Alexander Keller
NVIDIA Corporation

A Practical and Controllable Hair and Fur Model for Production Path Tracing

A novel BFSDF that is energy-conserving, efficient, and easy to control, and that reproduces a wide range of hair and fur with just a few intuitive parameters. This model is implemented in a production path-tracer and has achieved unprecedented character richness.

Matt Jen-Yuan Chiang
Walt Disney Animation Studios

Benedikt Bitterli
Disney Research, Walt Disney Animation Studios

Chuck Tappan
Walt Disney Animation Studios

Brent Burley
Walt Disney Animation Studios

Art-Directable Volumetric Multiple Scattering

An analysis of various visual properties of high-albedo media and a method for rendering multiple scattering effects that gives the user orthogonal controls over density, diffusion, and contrast. The controls greatly increase art-directability of clouds and other volumetric phenomena, compared to a purely physical simulation.

Magnus Wrenninge
Pixar Animation Studios

An Approximate Reflectance Profile for Efficient Subsurface Scattering

A subsurface scattering BSSRDF model based on an empirical reflectance profile that is extremely simple but matches brute-force Monte Carlo references better than state-of-the-art physically-based models.

Per Christensen
Pixar Animation Studios