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Delta global illumination for mixed reality

: Thöner, Maik; Kuijper, Arjan


Shumaker, R.:
Virtual, augmented and mixed reality. 7th international conference, VAMR 2015 : Held as part of HCI International 2015, Los Angeles, CA, USA, August 2 - 7, 2015; Proceedings
Cham: Springer International Publishing, 2015 (Lecture Notes in Computer Science 9179)
ISBN: 978-3-319-21066-7 (Print)
ISBN: 978-3-319-21067-4 (Online)
International Conference on Virtual, Augmented and Mixed Reality (VAMR) <7, 2015, Los Angeles/Calif.>
International Conference on Human-Computer Interaction (HCI International) <17, 2015, Los Angeles/Calif.>
Fraunhofer IGD ()
Augmented reality (AR); global illumination; mixed realities; voxel cone tracing; Realtime Rendering; Business Field: Digital society; Research Area: Human computer interaction (HCI); Research Area: Computer graphics (CG)

The focus point in Mixed Reality applications is the merging of objects from different realities into a new, visibly homogeneous scene. To achieve this, next to a spatial registration, a plausible illumination of the objects is required. While shadows and direct illumination can deliver a realistic look to the objects, adding indirect interaction of illumination will result in a seamless integration of objects, to appear as part of the scene instead of glued-on patches. Mixed Relality systems find appliance in entertainment areas like movies and games, as well as prototype presentations or visualization of planned or damaged constructions. We propose an algorithm based on Voxel Cone Tracing to provide Global Illumination for Mixed Reality that enables diffuse as well as specular lighting and easy to compute soft-shadows.