Modeling fields of grass in real-time 2004

By Jakob Gath

Two random screenshots from the development. Left: The field is affected by a breeze. Right: A close up of a field with 500 blades per m^2

History (summer 2004)

Research project: Modeling fields of grass in real-time. Every blade in the field is uniquely generated based on several key parameters which has inflict on the time depended motion of the straw which is considered as a damped harmonic oscillator. The initial deflection is determined as if the blade was a simpel cantilevered beam. Using the Cg vp4 profile’s vertex fetching support it is possible to let the GPU run the entire physical computation. An arbitrary number of dynamical wind loads can be applied without increasing the computation time.

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Citation

Jakob Gath. Modeling Fields of Grass in Real-Time. Research project 2004

The method can also be used to simulate other things - like hair.

Random screens from the development. On the right the grass is affected by a blast wind.