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Real-Time Flame Simulation Based on Volume Rendering
Abstract
Computer simulation of the flame is difficult to achieve real-time and realistic problem, proposing a fire simulation method based on fluid model and GPU general computing combining. The method is based on the incompressible flame, low-density, non-sticky and so on. Semi-Lagrange method is using to solve the fluid equations, using volume rendering based on 3D texture to rendering the flame. Then, using the method of energy-spectrum of radiation to control the color of the flame, and using the GPU to accelerate in parallel, balance realistic and real time.
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We introduce a set of techniques that are used together to produce realistic-looking animations of burning ob- jects. These include a new method for simulating spread- ing on polygonal meshes. A key component of our ap- proach consists in using individual flames as primitives to animate and render the fire. This simplification en- ables rapid computation and gives more intuitive control over the simulation without compromising realism. It also scales well, making it possible to animate phenom- ena ranging from simple candle-like flames to complex, widespread fires.
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In this paper we describe a system for animating flames. Stochastic models of flickering and buoyant diffusion provide realistic local appearance while physics-based wind fields and Kolmogorov noise add controllable motion and scale. Procedural mechanisms are developed for animating all aspects of flame behavior including moving sources, combustion spread, flickering, separation and merging, and interaction with stationary objects. At all stages in the process the emphasis is on total artistic and behavioral control while maintaining interactive animation rates. The final system is suitable for a high volume production pipeline.