hey I'm working for hours to turn the sample from Dx8 into Dx9. But something is still wrong.... I don't know if the sample can be turned into DirectX9, I tried , but failed. D3DXAssembleShaderFromFile( "shaders\\OceanWater.vsh", 0, NULL, 0 , &pCode, NULL ) ; because the function above never work right , always failed. The OceanWater.vsh did exist. if someone can help me turn it into directX9 , or offer me some water sample by DirectX9 simple enough, I will be really appreciate!!!! We really need this, after a week or two , our program will be checked by the teachers. So anyone who can offer me something is welcome.