Miloš Hašan UC Berkeley Jaroslav Křivánek Charles University in Prague (Optimizing) Realistic Rendering with Many-Light Methods An ACM SIGGRAPH 2012 course.

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Presentation transcript:

Miloš Hašan UC Berkeley Jaroslav Křivánek Charles University in Prague (Optimizing) Realistic Rendering with Many-Light Methods An ACM SIGGRAPH 2012 course presented by Bruce Walter Cornell University Alexander Keller NVIDIA Research Adam Arbree Autodesk Carsten Dachsbacher Karlsruhe Institute of Technology

Introduction Jaroslav Křivánek Charles University in Prague (Optimizing) Realistic Rendering with Many-Light Methods

3 Global illumination Copyright © nikki Candelero, vray gallery Copyright © Jonas Balzer Copyright © Disney and Pixar

4 Global illumination

1.Generate VPLs 5 Many-light rendering 2.Render with VPLs

Unified approach –Everything represented by (virtual) point lights –Area light, environment maps, indirect illumination 6 Many-lights: Advantages

Spans a wide range of quality/cost ratios 7 Many-lights: Advantages Interactive rendering 16k VPLs, 5.5 fps from [Ritschel et al., SIGGRAPH Asia 2008] from [Walter et al., SIGGRAPH 2012] High-fidelity rendering 1M VPLs, 64path/pix, 30 min

Ineffective for caustics from curved objects 8 Many-lights: Limitations 

Making it fast (as usual) Making it "asymptotically fast", i.e. scalable Making it accurate 9 Main technical issues

(in the order of appearance) Jaroslav Křivánek, Charles University in Prague Alexander Keller, NVIDIA Research Miloš Hašan, UC Berkeley Bruce Walter, Cornell University Carsten Dachsbacher, KIT Adam Arbree, Autodesk, Inc. 10 Course lecturers

2:00 (05 min) … Introduction & Welcome (Křivánek) 2:05 (30 min) … Instant Radiosity (Keller) 2:35 (30 min) … Handling difficult light paths (Hašan, Křivánek) 3:05 (25 min) … Scalability with many lights I (Walter) 3:30 (15 min) … Break 3:45 (20 min) … Scalability with many lights II (Hašan) 4:05 (35 min) … Real-time many-light rendering (Dachsbacher ) 4:40 (30 min) … ML in Autodesk ® 360 Rendering (Arbree) 5:10 (05 min) … Conclusion - Q & A (All) 11 Course Overview