Delta Voxel Cone Tracing

Mixed reality applications which must provide visual coherence between synthetic and real objects need relighting solutions for both: synthetic objects have to match lighting conditions of their real counterparts, while real surfaces need to account for the change in illumination introduced by the p...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:2014 IEEE International Symposium on Mixed and Augmented Reality (ISMAR) S. 39 - 44
1. Verfasser: Franke, Tobias Alexander
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.09.2014
Schlagworte:
Delta Radiance Fields
Geometry
Image reconstruction
Light sources
Lighting
Mixed Reality
Real-time Global Illumination
Relighting
Rough surfaces
Surface roughness
Virtual reality
Voxel Cone Tracing
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Mixed reality applications which must provide visual coherence between synthetic and real objects need relighting solutions for both: synthetic objects have to match lighting conditions of their real counterparts, while real surfaces need to account for the change in illumination introduced by the presence of an additional synthetic object. In this paper we present a novel relighting solution called Delta Voxel Cone Tracing to compute both direct shadows and first bounce mutual indirect illumination. We introduce a voxelized, pre-filtered representation of the combined real and synthetic surfaces together with the extracted illumination difference due to the augmentation. In a final gathering step this representation is cone-traced and superimposed onto both types of surfaces, adding additional light from indirect bounces and synthetic shadows from anti-radiance present in the volume. The algorithm computes results at interactive rates, is temporally coherent and to our knowledge provides the first real-time rasterizer solution for mutual diffuse, glossy and perfect specular indirect reflections between synthetic and real surfaces in mixed reality.
DOI:10.1109/ISMAR.2014.6948407