Rendering fog final demo
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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

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Rendering FogFinal 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

  • 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

Multiple Fog Slices

  • Composite the slices and include interactions with other geometry


Results


Results


Results


Results (haha just kidding)


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


Questions?

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