Properly lighting virtual objects and having them cast shadows on each other based on dynamic lighting conditions is a computationally hard challenging Even more complex are the issues raised when this must be done in a Mixed Reality environment where virtual objects and virtual light interact with real objects and real light. This paper presents several interactive-time algorithms to enable in...

Realtime ray tracing and interactive global illumination have recently made significant progress, allowing for ray traced rendering quality even in highly complex scenes. Nevertheless, high-quality global illumination is currently still limited to offline computations, as existing interactive techniques are applicable only to simple scenes, BRDFs, and/or lighting conditions. For realistically c...

As LED lighting technology becomes omnipresent, lighting environments become more advanced and allow for adjusting various parameters such as color, brightness, and saturation. This poses challenges for interaction design, particularly when lighting environments are shared between multiple users. This paper presents “Vuur”: a shared physical interface with which users can control lighting in me...

We introduce a method based on precomputed radiance transfer (PRT) that allows interactive rendering of glossy surfaces and includes shadowing effects from dynamic, “all-frequency” lighting. Specifically, source lighting is represented by a cube map at resolution nL = 6× 32× 32. We present a novel PRT formulation which factors glossy BRDFs into purely view-dependent and light-dependent parts, a...

L ighting design is an important topic of game development. There are many functions that lighting assumes in game environments, including directing attention, establishing good action visibility, evoking emotions, setting atmosphere, and providing depth. Current lighting design techniques rely on static manually designed lighting, where designers set up the positions, angles, and colors for ea...

There is a need for reliable lighting design applications because available tools are limited and inappropriate for interactive or creative use. Architects and lighting designers need those applications to define, predict, test and validate lighting solutions for their problems. We present a new approach to the lighting design problem based on a methodology that includes the geometry of the sce...

Our work focuses on using Image Based Lighting in Augmented Reality applications. In our application the real environment has immidiate effects on the virtual objects. It is possible for us to render reflective objects and see our own reflection in the objects, updated 30 times per second. Moreover the virtual objects cast soft shadows on the real floor and on each other. The virtual shadows re...