DX纹理寻址，我怎么用了没效果啊

mesh123

if (::GetAsyncKeyState(0x31) & 0x8000f)
    {
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_WRAP);
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_WRAP);
    }
    if (::GetAsyncKeyState(0x32) & 0x8000f)
    {
        
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_MIRROR);
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_MIRROR);
    }
    if (::GetAsyncKeyState(0x33) & 0x8000f)
    {
        
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
    }
    if (::GetAsyncKeyState(0x34) & 0x8000f)
    {

        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_BORDER);
        g_D3DDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_BORDER);
    }
  //......................................................
     g_D3DDevice->SetTexture(0,g_texture);
     g_D3DDevice->SetStreamSource(0,vertexbuffer,0,sizeof(vertex));
     g_D3DDevice->SetFVF(vertex::fvf_flags);
     g_D3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
我弄的是一个正方形(正方形够大)，纹理是出来了，但整张纹理平铺在上面，不能实现各种寻址模式改变，单改也不行，比如我想用重复寻址也不行，求解！

zhong1217

[em2]  你不是 纹理坐标 设置 有问题啊   就是 顶点结构  里面 正方形 里面的 U V  要实现纹理寻址 里面的纹理坐标也是要>1