terrain illumination
2.Its scene program adopts Creator software(a modeling tool),OpenGVS4.5(a 3D real-time engine of driving scene),DirectSound3D(a par of DirectX 8.0,a controlling sound playing program),uses many advanced technologies,such as six point terrain matching,twilight simulation,pixel level illumination simulation,fake particle system rainfall simulation,builds a good interactive and strong immerse virtual driving environment.
3.In order to increase the facticity of river way terrain,this paper focuses on the Triangular Mesh Model in the Digital Elevation Model(DEM),using OpenGL method of illumination,material,texture map and antialiasing to realize the multi-dimensional visualization of river way terrain. The modeling transformation of removing,rotating and scaling in VC++ and OpenGL are also used in order to realize the dynamic displaying effect.
4.(2) Based on DirectX8 library (Direct3D8) and its work principle, the process of 3D surface rendering is analyzed at length, including modeling, spatial transform, illumination processing, visible area determination, background culling, shading, and texture mapping, and then realized 3D real terrain on this basis.
5.In order to realize the river way flood flow,this paper focus on the triangular mesh model in the digital elevation model(DEM),using OpenGL method of illumination,material,texture map and antialiasing to realize the multi-dimensional visualization of river way terrain.
