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Rendering Fog Final Demo. CSS 522 Topics in Rendering March 14,2011 Scott and Lew. Overview:. Background of Fog Challenges Rendering it Our Implementation Results Limitations and Future Work. Challenges with Physics-Based Model.

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rendering fog final demo

Rendering FogFinal Demo

CSS 522 Topics in Rendering

March 14,2011

Scott and Lew

overview
Overview:
  • Background of Fog
  • Challenges Rendering it
  • Our Implementation
  • Results
  • Limitations and Future Work
challenges with physics based model
Challenges with Physics-Based Model
  • Visible clouds and fog are created by millions and millions of water droplets refracting and reflecting light
  • This is impractical to model – it might provide a more realistic rendering but comes at the expense of an impossibly huge amount of geometry to render.
  • It also doesn’t make sense to define the size & position of each water droplet in a scene
  • The visually interesting aspects of fog come from the aggregation of these particles, rather than the particles themselves
conceptual implementation
Conceptual Implementation

Multiple Fog Slices

  • Composite the slices and include interactions with other geometry
limitation and future work
Limitation and Future Work
  • With more time, create our own Fog Shader
  • Enhance the boundary of our fog slices. Current implementation shows obvious transition from fog to no fog.
  • Implement mode to switch between Perlin and Exponential methods.
  • User Interface for Fog Density
    • Current Implementation uses number of slices
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