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Real-Time Artistically Inspired Cloud Simulation and Rendering. Noah Brickman David Olsen Gillian Smith. Problem. Hard to render Important scene element Artistic control. Solution. Specify cloud shapes Artistically inspired Physically based Realtime rendering. - PowerPoint PPT Presentation
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Real-Time Artistically Inspired Cloud Simulation and Rendering
Noah Brickman
David Olsen
Gillian Smith
Problem
• Hard to render
• Important scene element
• Artistic control
Solution
• Specify cloud shapes
• Artistically inspired
• Physically based
• Realtime rendering
Related WorkSimple Non-Interactive Solutions
• Imposters, Skybox
• Pros:– Fast rendering
– Simple solution
• Cons:– Not interactive
– Limited control
Related WorkArtistic Control
• Pros:– Artistic
manipulation
• Cons:– Not physically
based animation
– Non-interactive
Related WorkCellular Automata
• Pros:– Physically based
simulation
– Simplistic simulation system
– Interactive
• Cons:– Limited control
Method Overview
• Specify 3D model
• Voxelize
• Cellular automata
• Rendering
Voxelization
Voxelization
Cellular Automata
• Rules– Growth
– Extinction
• Bounded voxel grid
Rendering
• Point cloud
• Billboards
• Variable size
• Variable shading
• Evolving cloud structure
Results
Conclusions
• Direct artist control
• Cloudify 3D models
• Physically based simulation within bounding volumes