Rendering participating media with bidirectional path tracing
Proceedings of the eurographics workshop on Rendering techniques '96
Efficient simulation of light transport in scenes with participating media using photon maps
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Photon Splatting for participating media
GRAPHITE '05 Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia
Hardware accelerated ambient occlusion techniques on GPUs
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Eikonal rendering: efficient light transport in refractive objects
ACM SIGGRAPH 2007 papers
Real-time smoke rendering using compensated ray marching
ACM SIGGRAPH 2008 papers
Real-time KD-tree construction on graphics hardware
ACM SIGGRAPH Asia 2008 papers
Cascaded light propagation volumes for real-time indirect illumination
Proceedings of the 2010 ACM SIGGRAPH symposium on Interactive 3D Graphics and Games
Technical Section: Real-time ambient occlusion and halos with Summed Area Tables
Computers and Graphics
Extinction-Based Shading and Illumination in GPU Volume Ray-Casting
IEEE Transactions on Visualization and Computer Graphics
Efficient Visibility Encoding for Dynamic Illumination in Direct Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
Real-time multiple scattering using light propagation volumes
I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
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High quality global illumination can enhance the visual perception of depth cue and local thickness of volumetric data but it is seldom used in scientific visualization because of its high computational cost. This paper presents a novel grid-based illumination technique which is specially designed and optimized for volume visualization purpose. It supports common light sources and dynamic transfer function editing. Our method models light propagation, including both absorption and scattering, in a volume using a convection-diffusion equation that can be solved numerically. The main advantage of such technique is that the light modeling and simulation can be separated, where we can use a unified partial-differential equation to model various illumination effects, and adopt highly-parallelized grid-based numerical schemes to solve it. Results show that our method can achieve high quality volume illumination with dynamic color and opacity mapping and various light sources in real-time. The added illumination effects can greatly enhance the visual perception of spatial structures of volume data.