Real-time fire effect simulation method based on GPU

Abstract

The invention provides a real-time fire effect simulation method based on a GPU (Graphics Processing Unit). The method comprises the following steps of: generating and updating a particle system through a CPU (Central Processing Unit), and obtaining the updated particle system; rendering corresponding point sprites of all the particles in the updated particle system, and obtaining the rendering result of the corresponding point sprites of all the particles. The method implements the simulation and rendering process of the real-time rendering fire effect, thereby obtaining the vivid fire effect in the real-time environment.

Description

technical field [0001] The invention relates to the field of computer graphics, in particular to a GPU-based simulation method for real-time flame effects. Background technique [0002] Flames have irregular geometries, subtle color variations, and have indeterminate dynamics. This kind of dynamic change is very complex and chaotic, and is affected by the surrounding environment, so it cannot be accurately described. The dynamic and random nature of the flame makes it difficult to simulate through the commonly used three-dimensional modeling method. In view of the above characteristics of the flame, Reeves proposed the particle system method in 1983 to simulate irregular objects such as flames. The particle system has the advantage of real-time simulation of irregular objects, making it widely developed in simulating flames. Perry and Picard established an enhanced particle system, which uses dynamically changing geometry instead of static basic primitives and pixels to ach...

AI Technical Summary

Problems solved by technology

[0005] 1) The simulation speed is too slow to meet real-time needs;

[0006] 2) The simulation process requires a lot of calculations and the calculation process is complicated, which cannot realize real-time display

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