Real-Time Animating and Rendering of Large Scale Grass Scenery on GPU

Zhao, Xiangkun; Li, Fengxia; Shou-yi, Zhan

doi:10.1109/itcs.2009.131

Cited by 2 publications

(1 citation statement)

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“…Early approach modeled grass through a stochastic process, instancing the actual blades for rendering in buckets and animating in a procedural method [16,21,29]. However, their approaches did not adopt the physical-based models.…”

Section: Related Workmentioning

confidence: 99%

A simulation on grass swaying with dynamic wind force

Lee

Chu

et al. 2016

Vis Comput

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Grass swaying simulation with respect to wind force plays an important role in the outdoor scene design of video games and animations. However, the complex and dynamic interactions between grass and wind largely hinder the existing approaches from generating physically plausible simulation in real-time performance. Therefore, common approaches compromise by either rendering still meadow or simply adopting a procedural method for simulating the grass motion. In this work, we present a simple yet effective grass model that enables the real-time simulation of grass swaying mimicking real-world grass motions under dynamic wind force. We characterize each individual grass using a simple polyline model with four vertices derived from the control knots of a cubic Bezier curve describing the real grass shape. The grass dynamics is modeled by applying a combination of swinging, bending and twisting motions to the polyline model in response to the input wind force. The deformed grass model is then passed to the shader pipeline to synthesize grass blades for the rendering. Experimental results show that our system not only achieves real-time performance in simulation and rendering, but also scales well to large grass field such as a meadow. Electronic supplementary materialThe online version of this article (

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Section: Related Workmentioning

confidence: 99%