Technicolor received a top honor at this year’s i3D winning “Best Paper Award” and “Best Presentation Award.” The ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, i3D 2016, is the leading conference for real-time 3D computer graphics and human interaction, and is considered as one of the top ranked (A*) conference in computer-graphics. The conference covers a broad range of interactive techniques across various domains such as virtual and augmented reality, games, rendering, animation, interaction devices, etc.
Pascal Lecocq, a researcher in the Technicolor R&I Media Computing Lab in Rennes, France, presented his paper entitled Accurate Analytic Approximations for Real-time Specular Area Lighting and won the “Best Paper Award” from the paper chairs and the “Best Presentation Award” by votes from the conference attendees.
Finding a solution combining both accuracy and real-time performance is a challenging problem with many expectations on high-demanding applications such as game engines, lighting previz tools, and production renderers. The paper presents accurate analytic approximations based on Irradiance Tensors for solving the area-light integral over polygons and introduces two more extensions to handle surface materials based on the microfacet theory and analytic area light sources such as disc and ellipsoids.
With contributions from Arthur Dufay, Gaël Sourimant, and Jean-Eudes Marvie, this paper describes a solution to particularly complex synthetic scene illumination problems, which usually take too much time to reach acceptable quality for previz. The method is the first practical solution to the problems of providing images close to the ground truth in real-time performances.