A GPU based approach for large scale terrain-rendering

摘要

Formerly,terrain-rendering techniques for large scale scene use the method of CPU based LOD (Level Of Detail,render detailed triangles near the camera and rough triangles far from the camera) to decrease the number of triangles sent to the Graphics Card.As a result,the load on Graphics Card is decreased,but the calculations done by the CPU is increased.However,it's not a good idea for the modern GPU Architecture.The GPU is parallel in structure,so it is suitable for doing many calculations at one time.The modern GPU can render millions of triangles per second,so sometimes the bottleneck of terrainrendering is the CPU capacity.This paper propose a more flexible GPU based terrain-rendering algorithm based on Asirvatham and Hoppe's work |2].