John David Olovsson
EA DICE, Sweden
Michael Doggett
Lund University, Sweden
Ladda ner artikel
Ingår i: Proceedings of SIGRAD 2013; Visual Computing; June 13-14; 2013; Norrköping; Sweden
Linköping Electronic Conference Proceedings 94:4, s. 27-33
Publicerad: 2013-11-04
ISBN: 978-91-7519-455-4
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
This paper presents a new method for representing Light Propagation Volumes using an octree data structure; and for allowing light from regular point light sources to be injected into them. The resulting technique uses full octrees with the help of a separate data structure for representing the octree structure. The octree structure enables light propagation to be performed at a lower resolution than the base resolution; resulting in fast propagation and overall faster rendering times. The implementation of the technique is capable of rendering the Sponza scene at 9 frames per second; which is 8% faster than the original LPV technique.
[Cor0] CORPORATION N.: Nvidia direct3d 11 sdk - diffuse global illumination demo. http://developer.nvidia. com/nvidia-graphics-sdk-11-direct3d; 0. 4; 6
[DS05] DACHSBACHER C.; STAMMINGER M.: Reflective shadow maps. In Proceedings of the 2005 symposium on Interactive 3D graphics and games (New York; NY; USA; 2005); I3D ’05; ACM; pp. 203–231. 1
[ea11] ET AL C. C.: Interactive indirect illumination using voxel cone tracing. http://research.nvidia. com/sites/default/files/publications/GIVoxels-pg2011-authors.pdf; 2011. 2
[Kap09] KAPLANYAN A.: Light propagation volumes in cryengine 3. http://www6.incrysis.com/Light_Propagation_Volumes.pdf; 2009. 1; 3
[KD10] KAPLANYAN A.; DACHSBACHER C.: Cascaded light propagation volumes for real-time indirect illumination. http://dx.doi.org/10.1145/1730804.1730821; 2010. 1;
3
[rea11] RLUM ET AL J. B.: Sslpv subsurface light propagation volumes. http://cg.alexandra.dk/wp-content/uploads/2011/06/SSLPV_preprint.pdf; 2011. 2
[SKS02] SLOAN P.-P.; KAUTZ J.; SNYDER J.: Precomputed radiance transfer for real-time rendering in dynamic; lowfrequency lighting environments. In Proceedings of the 29th annual conference on Computer graphics and interactive techniques (New York; NY; USA; 2002); SIGGRAPH ’02; ACM; pp. 527–536. 2
