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 Work Simple Non-Interactive Solutions Imposters, Skybox Pros: –Fast rendering –Simple solution Cons: –Not interactive –Limited control
Related Work Artistic Control Pros: –Artistic manipulation Cons: –Not physically based animation –Non-interactive
Related Work Cellular Automata Pros: –Physically based simulation –Simplistic simulation system –Interactive Cons: –Limited control
Method Overview Specify 3D model Voxelize Cellular automata Rendering
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