Realistic Image SynthesisのRendering Competitionで発表したスライドです

1. Realistic Image Synthesis
Rendering Competition
“Rendering Aurora”
2015/7/13

2. 2015/7/13
Rendering Result

3. 2015/7/13
Rendering Result

4. 2015/7/13
Technical Point
I have implemented “aurora simulation”
Calculate aurora shape
Calculate energy of each point in auroral curtain
Render aurora (Volume Rendering)

5. 2015/7/13
Technical Point
Calculate aurora shape
Modeling of Aurora Borealis Using the Observed Data(Tomokazu et al, 2011)
Field Aligned Current

6. 2015/7/13
Technical Point
Calculate aurora shape
Modeling of Aurora Borealis Using the Observed Data(Tomokazu et al, 2011)
Observed FAC and potential on auroral layer
(data from CCMC)
Calculate flow of current
Positive→particles fall down

7. 2015/7/13
Technical Point
Calculate energy of each point in auroral curtain
Interactive Volume Rendering Aurora on GPU(Orion et al, 2010)

8. 2015/7/13
Technical Point
Calculate energy of each point in auroral curtain
Interactive Volume Rendering Aurora on GPU(Orion et al, 2010)

9. 2015/7/13
Technical Point
Render aurora (Volume Rendering)
Add emission of aurora energy step by step(from lecture)
Distance Field method accelerates rendering[not implemented]
Emission color→ 557.7nm(green) around 100 km altitude
630.0nm(red) in higher altitude
(from “Simulating the Aurora Borealis” Baranoski, 2000)

10. 2015/7/13
Technical Point
Render aurora (Volume Rendering)
Add intersection Auroral Layer and Atmosphere as volume
Considering atmosphere to lose light of aurora is better[not implemented]