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Direct 3D Part 1: Utilizing The Maximum Power Of The GPU In Your Graphic-Intensive Windows Vista (Longhorn) Application,Rudolph BalazPRS311 Program ManagerMicrosoft Corporation,Session Focus,PRS 311 (This talk)Overview of Windows Vista Graphics StackFocus on Direct3D technologiesDiscover Graphics Stack changesLearn how to unleash the GPUUnderstand what it means to your applicationPRS 416Building applications using HLSLCool things you can do with Direct3DNext generation uses of the GPU,Topics Covered,Windows Vista Direct3D GoalsMore Scalable / More ReliableNew uses of the GPUBetter visuals and effectsWindows Vista Direct 3D TechnologiesNew Display Driver ModelDirect 3D 9.0Direct 3D 10,Direct 3D,Direct access to 3D hardwareReal time frame ratesGraphics Intensive ApplicationsGames, Productivity, Workstation ApplicationsNative & Managed APIs,Windows Vista Graphics Stack,Windows Vista Display Driver Model,Direct3D9 Runtime,DesktopWindowsManager,WindowsPresentationFoundation,Applications,ManagedDirect3D9,D3DX9,Effects,Direct3D10 Runtime,D3DX10,ManagedDirect3D10,Subtle Windows Vista Changes,GDI software onlyDesktop CompositionYour timing may varyActions may disable Desktop CompositionGetDC(NULL), Locking GDI primary surfaceShader Model 2.0 baseline,Things To Do,Dont lock the front bufferThrottle rendering in Windowed modeTest FullyWindows XP driver modelWindows Vista driver modelWith/Without Desktop Window ManagerWindowed/Fullscreen,Scalability / Reliability,GPU Is A Shared Resource,PresentationDesktop ManagerApplicationsGamesMultimediaWorkstation GraphicsMulti-monitorMobileRemote (terminal server),Scalability / Reliability,Windows Vista Display Driver Model,Virtualized graphics memoryGPU Command Scheduling & MultitaskingCommand translation moved to user modeManaged PrimariesFault tolerancePlug and PlayRebootless driver upgradeShared SurfacesSecure Surfaces,Display Driver Model Highlights,Driver Model Details,Basic ModelAvailable in Windows VistaVirtualization is resource granularityCommand Scheduling is in SoftwareAdvanced ModelAvailable Shortly after Windows VistaPage-level faulting Hardware context switching,Subtle Windows Vista Changes,Cant interleave GDI and D3D contentDont draw lines, Bit Blts, etc. on Window DCUse Direct3D GetDC on BackbufferGDI is softwareNot as performant as beforeManaged PrimariesGDI popup flicker is gone for D3D9ExGDI Desktop Buffer in swap chain,Things to do,Recreate Swap chainIf Window size Backbuffer SizeDesktop is rotatedDont mix GDI & D3D content,Scalability / Reliability,Direct3D 9.0 on Vista,Direct3D9 for Vista,All Direct3D applications benefit from new Driver ModelImproved StabilityMultiple ApplicationsDirect3D 9.0c applications just workExpose new driver model benefits to ApplicationsDirect3D9Ex Vista Desktop built on top of D3D9,Creating a Direct3D Device,pD3D = Direct3DCreate9( D3D_SDK_VERSION );pD3D-CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_DIREC3D9EX | D3DCREATE_SOFTWARE_VERTEXPROCESSING, Above is changing for Windows Vista Beta 2Direct3D10 not in Windows Vista Beta 1 but coming Beta 2,Shared Surfaces,CreateTexture CreateVolumeTexture CreateCubeTexture CreateRenderTarget,CreateVertexBuffer CreateIndexBuffer CreateDepthStencilSurface CreateOffscreenPlainSurface,Parameter HANDLE* pSharedHandle,Resource can be re-opened using this shared handle.Restrictions: Resource attributes must matchOnly creating Process can Lock surfaceNo automatic synchronization provided.Must be D3DPOOL_DEFAULT,Initialize Textures at Creation,Parameter HANDLE* pSharedHandle Pointer to textureRestrictions: Must be D3DPOOL_SYSTEMMEMFormat must match texture being created,GPU Resource Management,GPU Thread PriorityHRESULT GetGPUThreadPriority(UINT *pPriority); HRESULT SetGPUThreadPriority(UINT Priority); Resource PrioritySoft-pinningPer resource priorityResidency CheckHRESULT IDirect3DDevice9Ex:CheckResourceResidency( in, size_is ( NumResources ) IDirect3DResource9 * pResourceArray, in UINT32 NumResources);,Presentation Control,Present same frame multiple timesVBlankHRESULT WaitForVBlank(void); Frame StatisticsHRESULT GetLastPresentIndex(UINT* pLastPresentCount);HRESULT GetFrameStatistics(D3DPRESENTSTATS* pPresentationStatistics); typedef struct _D3DPRESENTSTATS UINT PresentCount; UINT PresentRefreshCount; UINT SyncRefreshCount; LARGE_INTEGER SyncQPCTime; LARGE_INTEGER SyncGPUTime; D3DPRESENTSTATS;,Subtle Windows Vista Changes,D3DPOOL_DEFAULT Resources never lostnot limited by Video memoryD3DERR_DEVICELOST - very rareExample GPU hung and has been resetD3DERR_DEVICEREMOVEDNew error codeDriver uninstalledHardware removed,Unsubtle Changes,TestCooperativeLevel deprecatedAlways returns S_OKReplaced by HRESULT CheckDeviceState(HWND hWindow); New Device StatesD3DERR_DEVICELOST D3DERR_DEVICEHUNG D3DERR_DEVICEREMOVED S_PRESENT_OCCLUDED S_PRESENT_MODE_CHANGED,When to use Direct3D9Ex,Eliminate Video Memory LimitCAD / Design applicationsResource SharingApplication uses multiple: Windows, Monitors, etc.Resource SchedulingBest Windows Vista ExperienceWilling to have multiple code pathsOr only targeting newer hardware,Things to do,Use D3D9Ex on Windows VistaUse Shared surfaces to limit memory usageAlways use D3DPOOL_DEFAULTRecreate everything on D3DDEVICE_REMOVEDDont use explicit resource managementPriority APIsUse limit GPU usage when Windowed,Better Visuals and Effects,D3D10,Direct3D10A Tremendous Step Forward,Fundamental architecture changeA new foundation for future releases Rebuilt from the ground-up Based on your feedbackIn collaboration with the IHVsNew hardware pipeline and software stack,Common operations refactored into a single DLL, isolated from rapid innovation on the 3D engineEnables resource sharing between Direct3D10 and future APIs,DXGIDirectX Graphics Infrastructure,Guaranteed Feature SetStrictly-defined, consistent behavior across hardwareNew Pipeline Stages and Primitive typesInput AssemblerGeometry ShaderCommon Shader CoresStream OutputNew resource types and formatsUbiquity of resource access,Overview: The New Hardware Pipeline,Resource Types And “Views”Ubiquity of Resource Usage,Create multiple “views” of a base resource for usage at different points in the pipelinePipeline OutputRender TargetandShader Resource InputTextureand,Geometry ShaderPer-Primitive Operations,Operates on entire primitives with adjacencyMaterial selection/setup to reduce # of draw() callsSet up barycentrics to exceed # of interpolatorsCompute edge lengthsCompute plane equationsCompute silhouette edges,GS Inputs:,Single-Pass Render-to-Cubemap,Geometry Shader,ID3D10ShaderResourceView:GenMips(),Single Pass Render-To-Cubemap,Stream Output,Writes GS Output to one or more buffersDrawAuto() to draw streamed-out data of variable size without CPU interventionUses:Intra-frame re-use Skin/morph once, render manyInter-frame re-use Iterative/procedural geometry processingAll-GPU parti