delphi+ opengl procedures of 3D Virtual Terrain! I hope everyone has a reference value for everyone!

3Dbuilder
.........\2.img
.........\dem.ini
.........\frmDEMCollection.dcu
.........\frmDEMCollection.dfm
.........\frmDEMCollection.pas
.........\frmGLMDI.dcu
.........\frmGLMDI.dfm
.........\frmGLMDI.pas
.........\frmMain.dcu
.........\frmMain.dfm
.........\frmMain.pas
.........\Global.dcu
.........\Global.pas
.........\menu.dfm
.........\menu.pas
.........\Mesh.dcu
.........\Mesh.pas
.........\sh_d.bmp
.........\Surface.dpr
.........\Surface.exe
.........\Surface.res
.........\Surface111.exe
.........\TextureGL.dcu
.........\TextureGL.pas

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