基于纹理合成的三维地形水墨风格渲染研究

提出了基于纹理合成的三维地形水墨风格渲染的方法,以规则格网DEM为数据源,基于OSG进行三维地形建模,在此基础上提取山体特征线,然后生成一幅灰度控制图像。对Efros01纹理合成算法进行改进,利用灰度控制图像指导水墨纹理的合成,将得到的纹理图像映射到三维地形上,实现对三维地形的水墨风格渲染,通过对水墨纹理样本的选择和纹理合成参数的设置能够实现对纹理合成过程的交互控制。结果表明,该渲染方法对三维地形的水墨风格渲染具有较好的效果。

Research on Ink Painting Style Rendering of Three-dimensional Terrain Based on Texture Synthesis

This paper proposes a method of rendering 3D terrain with ink style based on texture synthesis.At regular grid DEM as the data source,the author builds a 3D terrain model based on OSG.From the model the characteristic curve of the mountain is extracted and then generate a picture of a grayscale controlling image.Efros01 texture synthesis algorithm is improved to compound ink texture under the guidance of the grayscale controlling image.And the texture image received is mapped to the 3D terrain which then is rendered with ink painting style.The system realizes the interactional control of the process of texture synthesis by selecting different samples of ink painting texture or setting parameters.The final results show that the rendering method for ink painting style to 3D terrain rendering has a good effect.