A METHOD FOR TERRAIN RENDERING USING VERTEX COHESION MAP

摘要

The present invention relates to a terrain data visualization method using a vertex cohesion map, and more specifically, (1) filtering the numerical data model data (DEM Data) to calculate the amount of change in the slope between each sample point; (2) calculating a motion vector of each vertex based on the gradient change amount; (3) storing the movement vector and the height value of the point to be moved in a vertex aggregation map; And (4) loading the vertex aggregation map into a vertex shader and moving the vertices of the regular lattice to generate the terrain. According to the terrain data visualization method using the vertex aggregation map proposed by the present invention, after uploading the vertex aggregation map to the vertex shader instead of the DEM data, by moving the vertex using a vector stored in the vertex aggregation map, the terrain is visualized For example, geometric errors can be effectively reduced by agglomerating vertices to the point where the slope change of the terrain is large.