Algorithm on the Real-Time Adaptive Multi-resolution Rendering of Terrain Using RSG Data

Static LoD has been the most commonly used method of three-dimensional displayof terrain from the 1970swhich was introduced to the present;it is based on the pyramid ormulti-tile structure to generate a number of discrete models which have different resolutionfor real-time calls,simple but containing large amounts of data redundancy and jumpingwhen level-switch.Moreover,the current dynamic LoD also includes some problems,suchas complex data structure and single accuracy criterion etc.Based on these,we start fromthe RSG data and put forward a new algorithm for real-time adaptive multi-resolution rendering through data-preprocessing,conservative screen-error,isolated partition and split-pointsinserting.Preliminary experiments have proved that the simulated accuracy can be improvedgreatly with satisfactory speed.Meanwhile,it can also be adapted for other models of LoDexpressions.