Directx11教程(58) 滑鼠控制攝像機

       本篇教程我們實現滑鼠旋轉攝像機的操作。主要就是按下滑鼠左鍵的時候，根據滑鼠的移動對攝像機進行pitch, raw的組合旋轉。具體修改代碼是在D3CClass類中，增加對滑鼠事件的處理：

case WM_LBUTTONDOWN:
    if( wparam & MK_LBUTTON )
        {
        SetCapture(hwnd);

        m_OldMousePos.x = LOWORD(lparam);
        m_OldMousePos.y = HIWORD(lparam);
        }
    return 0;

case WM_LBUTTONUP:
    ReleaseCapture();
    return 0;

case WM_MOUSEMOVE:
    if( wparam & MK_LBUTTON )
        {
        mousePos.x = (int)LOWORD(lparam);
        mousePos.y = (int)HIWORD(lparam);

        dx = mousePos.x - m_OldMousePos.x;
        dy = mousePos.y - m_OldMousePos.y;
        //通過滑鼠轉動攝像機
        m_Graphics->m_Camera->pitch(dy * 0.0087266f);
        m_Graphics->m_Camera->yaw(dx * 0.0087266f);

        m_OldMousePos = mousePos;
        }
    return 0;

完整的代碼請參考：

工程檔案myTutorialD3D11_53

代碼下載：

http://files.cnblogs.com/mikewolf2002/d3d1150-58.zip

http://files.cnblogs.com/mikewolf2002/pictures.zip