terrain height querry, which is represented by triangle mesh

非常全面的基于SDF原理的3D模型分割 包含相关论文（基于SDF的网格分割和骨架提取）及根据SDF值分割的源代码-SDF very comprehensive 3D model based on the principle of division Contains the relevant papers (SDF-based mesh segmentation and skeleton extraction) and SDF segmentation based on the sourc