Hi Guys I am facing color problem when I run my product (developed in DirectX 9.0-SDK using Visual studio 2005 - Windows XP OS), on Vista OS. It works perfectly well in Windows XP. We create 3D graphs with different material color and set lighting for those objects. But in Vista, any color set for the objects is shown as black and we understand (After many days of research to solve this problem), that light source setting may be the problem. If we set emissive color to material, it shows the corresponding color without light shading effect. Hence we suspect that light source setting may have to be different for vista. Some of my samples(prototypes) created in XP are working properly in Vista with the same settings.Can someone please help me in solving this problem. This is how we initialize / reset device ******* Code Starts here **************** void CRenderLibraryBuilderDX::Initialize(HWND hWnd) { m_hWnd = hWnd; CRect rect; ::GetClientRect(hWnd, &rect); int nRectWidth = 2; int nRectHeight = 2; CDXDeviceCapability oDXDeviceCapability(m_ipD3D9, hWnd); oDXDeviceCapability.SetResolutionMinMax(0,0,nRectWidth, nRectHeight); oDXDeviceCapability.Enumerate(); m_d3dPresentParameters.BackBufferWidth = nRectWidth; m_d3dPresentParameters.BackBufferHeight = nRectHeight; m_d3dPresentParameters.BackBufferFormat = D3DFMT_UNKNOWN m_d3dPresentParameters.BackBufferCount = 1; m_d3dPresentParameters.MultiSampleType = D3DMULTISAMPLE_4_SAMPLES; m_d3dPresentParameters.MultiSampleQuality = 0; m_d3dPresentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD; m_d3dPresentParameters.hDeviceWindow = hWnd; m_d3dPresentParameters.Windowed = true; m_d3dPresentParameters.EnableAutoDepthStencil = true; m_d3dPresentParameters.AutoDepthStencilFormat = D3DFMT_D24S8; m_d3dPresentParameters.Flags = 0; m_d3dPresentParameters.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT; m_d3dPresentParameters.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; oDXDeviceCapability.FillPresentParameters(m_d3dPresentParameters); if(m_ipDevice!=NULL) { m_ipDevice->Release(); m_ipDevice = NULL; } HRESULT hr = m_ipD3D9->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, m_nVertexProcessingFlag,&m_d3dPresentParameters, &m_ipDevice); if( FAILED(hr) ) { hr = m_ipD3D9->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_REF, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &m_d3dPresentParameters, &m_ipDevice); } if( FAILED(hr) ) { ::AfxMessageBox(_T("DirectX Initialization Failed")); } uint control_word = 0; //// Show original FP control word and do calculation. // sint err = _controlfp_s(&control_word, 0, 0); #if _MSC_VER < 1400 control_word = _controlfp(_CW_DEFAULT, MCW_PC); #else int err = _controlfp_s(&control_word, _CW_DEFAULT, MCW_PC); #endif } bool CRenderLibraryBuilderDX::PrepareContext(HDC hDC) { if(m_ipDevice==NULL) return false; m_ipDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE); m_ipDevice->SetRenderState(D3DRS_NORMALIZENORMALS, true); m_ipDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_GOURAUD); m_ipDevice->SetRenderState(D3DRS_SPECULARENABLE, true); m_ipDevice->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xffffffff, 1.0f, 0); uint control_word = 0; #if _MSC_VER < 1400 control_word = _controlfp(_CW_DEFAULT, MCW_PC); #else int err = _controlfp_s(&control_word, _CW_DEFAULT, MCW_PC); if(!err) return true; #endif return false; } void CRenderLibraryBuilderDX::Reset(HWND hWnd) { if(m_ipDevice==NULL) return; IGrModel* ipModel = m_ipRenderBuilder->GetGraphBuilderContainer()->GetGraphBuilder()->GetModel(); if(ipModel!=NULL) { ipModel->ReleaseBuffers(); } m_hWnd = hWnd; CRect rect; ::GetClientRect(m_hWnd, &rect); int nRectWidth = 2; int nRectHeight = 2; ResizeRect(rect, nRectWidth, nRectHeight); m_d3dPresentParameters.BackBufferWidth = nRectWidth; m_d3dPresentParameters.BackBufferHeight = nRectHeight; m_d3dPresentParameters.hDeviceWindow = m_hWnd; m_ipDevice->Reset(&m_d3dPresentParameters); uint control_word = 0; #if _MSC_VER < 1400 control_word = _controlfp(_CW_DEFAULT, MCW_PC); #else int err = _controlfp_s(&control_word, _CW_DEFAULT, MCW_PC); #endif } void CRenderLibraryBuilderDX::Reset(bool bBackBuffer) { if(m_ipDevice==NULL) return; IGrModel* ipModel = m_ipRenderBuilder->GetGraphBuilderContainer()->GetGraphBuilder()->GetModel(); if(ipModel!=NULL) { ipModel->ReleaseBuffers(); } CRect rect; ::GetClientRect(m_hWnd, &rect); int nRectWidth = 2; int nRectHeight = 2; ResizeRect(rect, nRectWidth, nRectHeight); m_d3dPresentParameters.BackBufferWidth = nRectWidth; m_d3dPresentParameters.BackBufferHeight = nRectHeight; m_d3dPresentParameters.hDeviceWindow = m_hWnd; m_ipDevice->Reset(&m_d3dPresentParameters); uint control_word = 0; #if _MSC_VER < 1400 control_word = _controlfp(_CW_DEFAULT, MCW_PC); #else int err = _controlfp_s(&control_word, _CW_DEFAULT, MCW_PC); #endif } void CRenderLibraryBuilderDX::FinalizeRender(HDC hDC) { m_ipDevice->Present(0, 0, 0, 0); uint control_word = 0; // Restore default precision-control bits and recalculate. #if _MSC_VER < 1400 control_word = _controlfp(_CW_DEFAULT, MCW_PC); #else int err = _controlfp_s(&control_word, _CW_DEFAULT, MCW_PC); #endif } ******* Code Ends here **************** Thanks in advance for going through this painful code patiently!!!! Ram

Hi Guys
Thanks for the direction. But I set right all the errors shown by D3D sdk debugger and to some extent we were successful because it draws the object with all the lighting effect for the first time but on resizing the window in vista, everything becomes black. I checked on the net and found that I have to install SP1 for vista (http://forums.msdn.microsoft.com/en-US/wpf/thread/3960d6a6-e873-455c-9ddc-1e2dd32e090b) which I dutifully did but the result was same. I am still struggling to come out of this problem. I tried jollyjeffers suggestions on running the app with different configurations and it was successful in all the systems in my company with all possible combinations of hardware and video cards but with XP installed in it. Will this hint help you guys in giving me fresh suggestion. Our beta release is pending because of this problem and I am not getting much help from MS forums.

T&R
Ram

[Edited by - Ramanathan on July 24, 2008 2:21:43 AM]

Hi LeGreg

Thanks for the clue. We solved resizing problem by recreating the entire stuff everytime the window is resized. But it is painfully slow. Still it is a great relief. Thank you so much. Let us hope that guys in microsoft fix this vista-directX bug at the earliest so that people like me need not waste time in doing work-arounds to bypass their bug.

T&R
Ram