CAJ | 학술논문

为实时提取三维实体表面，提出一种基于GPGPU并行计算的实体表面实时提取方法。在分析深度剥离算法原理和GPU图形绘制管线的基础上，给出在GPU上利用深度剥离算法实现实时提取三维实体表面的算法；通过OpenGL的高级着色语言GLSL控制GPU的图形绘制管线实现了该算法，给出其伪代码。以龙、叶轮和刀具扫描体的模型为应用实例验证了该算法效果良好，特别是对于刀具扫描体表面的提取，可满足实时性要求。
위실시제취삼유실체표면，제출일충기우GPGPU병행계산적실체표면실시제취방법。재분석심도박리산법원리화GPU도형회제관선적기출상，급출재GPU상이용심도박리산법실현실시제취삼유실체표면적산법；통과OpenGL적고급착색어언GLSL공제GPU적도형회제관선실현료해산법，급출기위대마。이룡、협륜화도구소묘체적모형위응용실례험증료해산법효과량호，특별시대우도구소묘체표면적제취，가만족실시성요구。
To extract the entity surface in real time ,a method of extracting the entity surface in real time based on GPGPU parallel computing was presented . The principle of the depth peeling algorithm and the graphics rendering pipeline of GPU were analyzed ,then the algorithm of extracting 3D entity surface in real time using depth peeling algorithm on a GPGPU was given . The algorithm was realized through controlling the graphics rendering pipeline of GPU with OpenGL high level shading language GLSL ,and the pseudo‐code was given .Finally the application examples of dragon model ,impeller model and tool swept‐volume were shown to verify the proposed method .The results show that the effects of the method are good ,especially the extraction of tool swept‐volume surface ,which meets the requirement of real time .