3D visual simulation of grassland under random wind field

摘要

3D visual simulation of grassland can improve the realism by real-time drawing grass elements under the action of random wind field. Due to the huge number of grass bodies in 3D visual simulation of grassland, and random morphological changes occur with the action of the wind field. Therefore, it is difficult for the traditional methods to effectively simulate the grassland scene. A 3D visual simulation method of grassland based on random wind fields generated by continuous tetragonal texture was proposed in this article. Layered texture method was used to generate and reproduce 3D grassland scene. Under the action of random wind field, the feature points of 3D grassland were classified by contour point labeling method, and the histogram algorithm was used to measure the distance of the template. To achieve the continuous texture generation of the Quartet, and to improve the authenticity of the scene simulation under the action of the wind field, the key frame and the current frame of 3D grassland under the action of wind field were template matched to normalize the four attributes of the equivalent histogram, which are the center of contour area, the specular reflected light intensity and the gray level extreme value of grassland. The simulation results show that the proposed method is characterized by better authenticity of grass body swinging, better dynamic simulation effect, lower center error of grass body target position and superior performance.