Research And Implementation Of Rendering And Interactive Editing On Massive Three Dimension Shot Point And Receiver Based On GPU

In the field of petroleum exploration,3D observing system of seismic acquisition design has become a research focus.With increasing need of exploration,the scale and precision of 3D surface elevation model also have a corresponding increase;At the same time,shot point and receiver which laid in the work area can achieve to ten millions of magnitude at the biggest range.Thus,the main content of this article aims at how to combine large-scale 3D surface with shot point and receiver to render efficiently,and support the basic spatial analysis at the same time.According to existing 3D visualization technology and the current conditions,this article is proposed based on huge rendering and interactive technologies of shot point and receiver in GPU,research is carried out from the following aspects:(1)This article which relied on 3D surface,based on the perspective transformation and made use of GPU programming to put forward dynamically generated and scheduling algorithm of elevation texture then carry it out,according to transformation of surface multiresolution to organize and get elevation data effectively;(2)This article made full use of GPU parallel computing,elevation interpolation algorithm of mass shot point and receiver was designed and implemented,with DEM texture and 3D shot point and receiver plane coordinates as input,through shader programming technology,by putting interpolation algorithm in the geometry shader to get real-time elevation data of each shot point and receiver;(3)According to the actual engineering demands,this article put forward a way to transform model coordinate into screen coordinate,which makes precise selection and editing operations in 3D shot point and receiver into reality.According to the practical engineering background,we designed and implemented real-time rendering and interactive prototype system of massive shot point and receiver.System operation results showed that this article put forward by massive 3D shot point and receiver of GPU rendering and interaction technology can be achieved,and it even has a better effect in the practical engineering application.