Direct 3D Part 1: Utilizing The Maximum Power Of The GPU In Your Graphic-Intensive Windows Vista...

Direct 3D Part 1: Utilizing The Maximum Direct 3D Part 1: Utilizing The Maximum Power Of The GPU In Your Graphic-Power Of The GPU In Your Graphic-Intensive Windows Vista ("Longhorn") Intensive Windows Vista ("Longhorn") ApplicationApplication

Rudolph BalazRudolph BalazPRS311 PRS311 Program ManagerProgram ManagerMicrosoft CorporationMicrosoft Corporation

Session FocusSession Focus

PRS 311 (This talk)PRS 311 (This talk)Overview of Windows Vista Graphics Overview of Windows Vista Graphics StackStack

Focus on Direct3D technologiesFocus on Direct3D technologies

Discover Graphics Stack changesDiscover Graphics Stack changes

Learn how to unleash the GPULearn how to unleash the GPU

Understand what it means to your Understand what it means to your applicationapplication

PRS 416PRS 416Building applications using HLSLBuilding applications using HLSL

Cool things you can do with Direct3DCool things you can do with Direct3D

Next generation uses of the GPUNext generation uses of the GPU

Topics CoveredTopics Covered

Windows Vista Direct3D GoalsWindows Vista Direct3D GoalsMore Scalable / More ReliableMore Scalable / More Reliable

New uses of the GPUNew uses of the GPU

Better visuals and effectsBetter visuals and effects

Windows Vista Direct 3D TechnologiesWindows Vista Direct 3D TechnologiesNew Display Driver ModelNew Display Driver Model

Direct 3D 9.0Direct 3D 9.0

Direct 3D 10Direct 3D 10

Direct 3DDirect 3D

Direct access to 3D hardwareDirect access to 3D hardware

Real time frame ratesReal time frame rates

Graphics Intensive ApplicationsGraphics Intensive ApplicationsGames, Productivity, Workstation Games, Productivity, Workstation ApplicationsApplications

Native & Managed APIsNative & Managed APIs

Windows Vista Windows Vista Graphics StackGraphics Stack

Windows Vista Display Driver ModelWindows Vista Display Driver Model

Direct3D9 RuntimeDirect3D9 Runtime

DesktopDesktopWindowsWindowsManagerManager

WindowsWindowsPresentationPresentationFoundationFoundation

ApplicationsApplications

ManagedManagedDirect3D9Direct3D9

D3DX9D3DX9

EffectsEffects

Direct3D10 RuntimeDirect3D10 Runtime

D3DX10D3DX10

ManagedManagedDirect3D10Direct3D10

Subtle Windows Vista Subtle Windows Vista ChangesChanges

GDI –software onlyGDI –software only

Desktop CompositionDesktop CompositionYour timing may varyYour timing may vary

Actions may disable Desktop Actions may disable Desktop CompositionComposition

GetDC(NULL), Locking GDI primary GetDC(NULL), Locking GDI primary surfacesurface

Shader Model 2.0 baselineShader Model 2.0 baseline

Things To DoThings To Do

Don’t lock the front bufferDon’t lock the front buffer

Throttle rendering in Windowed modeThrottle rendering in Windowed mode

Test FullyTest FullyWindows XP driver modelWindows XP driver model

Windows Vista driver modelWindows Vista driver model

With/Without Desktop Window ManagerWith/Without Desktop Window Manager

Windowed/FullscreenWindowed/Fullscreen

Scalability / ReliabilityScalability / Reliability

GPU Is A Shared ResourceGPU Is A Shared Resource

PresentationPresentationDesktop ManagerDesktop Manager

ApplicationsApplications

GamesGames

MultimediaMultimedia

Workstation GraphicsWorkstation Graphics

Multi-monitorMulti-monitor

MobileMobile

Remote (terminal server)Remote (terminal server)


Windows Vista Display Driver ModelWindows Vista Display Driver Model

Virtualized graphics Virtualized graphics memorymemory

GPU Command GPU Command Scheduling & Scheduling & MultitaskingMultitasking

Command translation Command translation moved to user modemoved to user mode

Managed PrimariesManaged Primaries

Fault toleranceFault tolerance

Plug and PlayPlug and Play

Rebootless driver Rebootless driver upgradeupgrade

Shared SurfacesShared Surfaces

Secure SurfacesSecure Surfaces

Kernel ModeUser Mode

User-Mode Driver

Graphics Hardware

Kernel-Mode Driver

Application

Direct3D

DXGKrnlGPU

SchedulerVideo Memory

Manager

Display Driver Model Display Driver Model HighlightsHighlights

Driver Model DetailsDriver Model Details

Basic ModelBasic ModelAvailable in Windows VistaAvailable in Windows Vista

Virtualization is resource granularityVirtualization is resource granularity

Command Scheduling is in SoftwareCommand Scheduling is in Software

Advanced ModelAdvanced ModelAvailable Shortly after Windows VistaAvailable Shortly after Windows Vista

Page-level faulting Page-level faulting

Hardware context switchingHardware context switching


Can’t interleave GDI and D3D contentCan’t interleave GDI and D3D contentDon’t draw lines, Bit Blts, etc. on Window Don’t draw lines, Bit Blts, etc. on Window DCDC

Use Direct3D GetDC on BackbufferUse Direct3D GetDC on Backbuffer

GDI is softwareGDI is softwareNot as performant as beforeNot as performant as before

Managed PrimariesManaged PrimariesGDI popup flicker is gone for D3D9ExGDI popup flicker is gone for D3D9Ex

GDI Desktop ≠ Buffer in swap chainGDI Desktop ≠ Buffer in swap chain

Things to doThings to do

Recreate Swap chainRecreate Swap chainIf Window size ≠ Backbuffer SizeIf Window size ≠ Backbuffer Size

Desktop is rotatedDesktop is rotated

Don’t mix GDI & D3D contentDon’t mix GDI & D3D content


Direct3D 9.0 on VistaDirect3D 9.0 on Vista

Direct3D9 for VistaDirect3D9 for VistaAll Direct3D applications benefit All Direct3D applications benefit from new Driver Modelfrom new Driver Model

Improved StabilityImproved Stability

Multiple ApplicationsMultiple Applications

Direct3D 9.0c applications just workDirect3D 9.0c applications just work

Expose new driver model benefits Expose new driver model benefits to Applicationsto Applications

Direct3D9Ex Direct3D9Ex

Vista Desktop built on top of D3D9Vista Desktop built on top of D3D9

Creating a Direct3D Creating a Direct3D DeviceDevice

pD3D = Direct3DCreate9( D3D_SDK_VERSION );pD3D = Direct3DCreate9( D3D_SDK_VERSION );

pD3D->CreateDevice( pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, hWnd, D3DCREATE_DIREC3D9EXD3DCREATE_DIREC3D9EX | | DD3DCREATE_SOFTWARE_VERTEXPROCESSING, 3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &pd3dDevice &d3dpp, &pd3dDevice ) ;) ;

pd3dDevice->QueryInterface( pd3dDevice, D3DCREATEDEVICEEX, pd3dDevice->QueryInterface( pd3dDevice, D3DCREATEDEVICEEX, pd3dDeviceEx );pd3dDeviceEx );

Above is changing for Windows Vista Beta 2Above is changing for Windows Vista Beta 2

Direct3D10 not in Windows Vista Beta 1 but coming Direct3D10 not in Windows Vista Beta 1 but coming Beta 2Beta 2

Shared SurfacesShared Surfaces

CreateTexture CreateTexture

CreateVolumeTexture CreateVolumeTexture

CreateCubeTexture CreateCubeTexture

CreateRenderTarget CreateRenderTarget

CreateVertexBuffer CreateVertexBuffer

CreateIndexBuffer CreateIndexBuffer

CreateDepthStencilSurfacCreateDepthStencilSurface e

CreateOffscreenPlainSurfaCreateOffscreenPlainSurfacece

Parameter HANDLE* pSharedHandle Parameter HANDLE* pSharedHandle

Resource can be re-opened using this shared Resource can be re-opened using this shared handle.handle.

Restrictions: Restrictions: Resource attributes must matchResource attributes must match

Only creating Process can Lock surfaceOnly creating Process can Lock surface

No automatic synchronization provided.No automatic synchronization provided.

Must be D3DPOOL_DEFAULTMust be D3DPOOL_DEFAULT

Initialize Textures at Initialize Textures at CreationCreation

Parameter HANDLE* pSharedHandle Parameter HANDLE* pSharedHandle Pointer to texturePointer to texture

Restrictions: Restrictions: Must be D3DPOOL_SYSTEMMEMMust be D3DPOOL_SYSTEMMEM

Format must match texture being createdFormat must match texture being created

GPU Resource GPU Resource ManagementManagement

GPU Thread PriorityGPU Thread PriorityHRESULT HRESULT GetGPUThreadPriorityGetGPUThreadPriority(UINT *pPriority); (UINT *pPriority);

HRESULT HRESULT SetGPUThreadPrioritySetGPUThreadPriority(UINT Priority); (UINT Priority);

Resource PriorityResource PrioritySoft-pinningSoft-pinning

Per resource priorityPer resource priority

Residency CheckResidency CheckHRESULT HRESULT IDirect3DDevice9ExIDirect3DDevice9Ex::CheckResourceResidency( ::CheckResourceResidency(

[in, size_is ( NumResources )] IDirect3DResource9 * pResourceArray, [in, size_is ( NumResources )] IDirect3DResource9 * pResourceArray,

[in] UINT32 NumResources); [in] UINT32 NumResources);

Presentation ControlPresentation Control

Present same frame multiple Present same frame multiple timestimes

VBlankVBlankHRESULT HRESULT WaitForVBlankWaitForVBlank(void); (void);

Frame StatisticsFrame StatisticsHRESULT GetLastPresentIndex(UINT* pLastPresentCount);HRESULT GetLastPresentIndex(UINT* pLastPresentCount);

HRESULT GetFrameStatistics(D3DPRESENTSTATS* HRESULT GetFrameStatistics(D3DPRESENTSTATS* pPresentationStatistics); pPresentationStatistics);

typedef struct _D3DPRESENTSTATS {typedef struct _D3DPRESENTSTATS { UINT PresentCount; UINT PresentCount; UINT PresentRefreshCount; UINT PresentRefreshCount; UINT SyncRefreshCount; UINT SyncRefreshCount; LARGE_INTEGER SyncQPCTime; LARGE_INTEGER SyncQPCTime; LARGE_INTEGER SyncGPUTime; LARGE_INTEGER SyncGPUTime;} D3DPRESENTSTATS; } D3DPRESENTSTATS;


D3DPOOL_DEFAULT D3DPOOL_DEFAULT Resources never lostResources never lost

not limited by Video memorynot limited by Video memory

D3DERR_DEVICELOST - very rareD3DERR_DEVICELOST - very rareExample GPU hung and has been resetExample GPU hung and has been reset

D3DERR_DEVICEREMOVEDD3DERR_DEVICEREMOVEDNew error codeNew error code

Driver uninstalledDriver uninstalled

Hardware removedHardware removed

Unsubtle ChangesUnsubtle Changes

TestCooperativeLevel deprecatedTestCooperativeLevel deprecatedAlways returns S_OKAlways returns S_OK

Replaced by Replaced by HRESULT CheckDeviceState(HWND hWindow); HRESULT CheckDeviceState(HWND hWindow);

New Device StatesNew Device StatesD3DERR_DEVICELOST D3DERR_DEVICELOST

D3DERR_DEVICEHUNG D3DERR_DEVICEHUNG

D3DERR_DEVICEREMOVED D3DERR_DEVICEREMOVED

S_PRESENT_OCCLUDED S_PRESENT_OCCLUDED

S_PRESENT_MODE_CHANGED S_PRESENT_MODE_CHANGED

When to use Direct3D9ExWhen to use Direct3D9Ex

Eliminate Video Memory LimitEliminate Video Memory LimitCAD / Design applicationsCAD / Design applications

Resource SharingResource SharingApplication uses multiple: Windows, Application uses multiple: Windows, Monitors, etc.Monitors, etc.

Resource SchedulingResource Scheduling

Best Windows Vista ExperienceBest Windows Vista ExperienceWilling to have multiple code pathsWilling to have multiple code paths

Or only targeting newer hardwareOr only targeting newer hardware

Things to doThings to do

Use D3D9Ex on Windows VistaUse D3D9Ex on Windows Vista

Use Shared surfaces to limit memory Use Shared surfaces to limit memory usageusage

Always use D3DPOOL_DEFAULTAlways use D3DPOOL_DEFAULT

Recreate everything on Recreate everything on D3DDEVICE_REMOVEDD3DDEVICE_REMOVED

Don’t use explicit resource Don’t use explicit resource managementmanagement

Priority API’sPriority API’s

Use Use limit GPU usage when limit GPU usage when WindowedWindowed

Better Visuals and EffectsBetter Visuals and Effects

D3D10D3D10

Direct3D10Direct3D10A Tremendous Step ForwardA Tremendous Step Forward

Fundamental architecture Fundamental architecture changechangeA new foundation for future A new foundation for future releases releases Rebuilt from the ground-up Rebuilt from the ground-up

Based on your feedbackBased on your feedbackIn collaboration with the IHV’sIn collaboration with the IHV’s

New hardware pipeline and New hardware pipeline and software stacksoftware stack

Common operations Common operations refactored into a refactored into a single DLL, isolated single DLL, isolated from rapid innovation from rapid innovation on the 3D engineon the 3D engine

Enables resource Enables resource sharing between sharing between Direct3DDirect3D®®10 and 10 and future API’sfuture API’s

D3D10 +2D3D10 +1

DXGI

D3D10

DXGIDXGIDirectX Graphics InfrastructureDirectX Graphics InfrastructureDXGIDXGIDirectX Graphics InfrastructureDirectX Graphics Infrastructure

Guaranteed Feature SetGuaranteed Feature Set

Strictly-defined, consistent Strictly-defined, consistent behavior across hardwarebehavior across hardware

New Pipeline Stages and New Pipeline Stages and Primitive typesPrimitive types

Input AssemblerInput Assembler

Geometry ShaderGeometry Shader

Common Shader CoresCommon Shader Cores

Stream OutputStream Output

New resource types and New resource types and formatsformats

Ubiquity of resource accessUbiquity of resource access

……

InputAssembler

VertexShader

Rasterizer/Interpolator

PixelShader

GeometryShader

OutputMerger

Vertex Buffer

Index Buffer

Texture

Texture

Depth/Stencil

Texture

Render Target

Stream Output

CommandInput Virtualized Memory

(GPU/System Memory)

Overview: The New Overview: The New Hardware PipelineHardware Pipeline

Resource Types And Resource Types And “Views”“Views”Ubiquity of Resource UsageUbiquity of Resource Usage

Create multiple Create multiple “views” of a base “views” of a base resource for usage at resource for usage at different points in the different points in the pipelinepipeline

Pipeline OutputPipeline Output

Render TargetRender Target

and…and…

Shader Resource Shader Resource InputInput

TextureTexture

and…and…

D3D10_TEXCUBE_RTVD3D10_TEXCUBE_SRV

x

y z

uv

x

y z

Crea

teSha

derR

esou

rceVie

w

OMSe

tTar

gets

PS/V

S/GS

SetT

extu

res

CreateRenderTargetView

Geometry ShaderGeometry ShaderPer-Primitive OperationsPer-Primitive Operations

Operates on entire primitivesOperates on entire primitives [with adjacency][with adjacency]

Material selection/setup to reduce Material selection/setup to reduce # of draw() calls# of draw() calls

Set up barycentrics to exceed # of Set up barycentrics to exceed # of interpolatorsinterpolators

Compute edge lengthsCompute edge lengths

Compute plane equationsCompute plane equations

Compute silhouette edgesCompute silhouette edges

GS Inputs:

1

0 4

5

2 3

0 1 2 3

Single-Pass Render-to-Single-Pass Render-to-CubemapCubemap

x

y z

uv

Geometry Shader

ID3D10ShaderResourceView::GenMips(…)

Single Pass Render-To-Single Pass Render-To-CubemapCubemap

Stream OutputStream Output

Writes GS Output to one or Writes GS Output to one or more buffersmore buffersDrawAuto() to draw streamed-out data of DrawAuto() to draw streamed-out data of variable size without CPU interventionvariable size without CPU interventionUses:Uses:

Intra-frame re-use Intra-frame re-use Skin/morph once, render manySkin/morph once, render many

Inter-frame re-use Inter-frame re-use Iterative/procedural Iterative/procedural geometry processinggeometry processingAll-GPU particle All-GPU particle systemssystems……

VertexShader

Rasterizer/Interpolator

GeometryShader

Texture

Texture

Stream Output

Predicated RenderingPredicated Rendering

Predicate draw’s and blit’s with Predicate draw’s and blit’s with results of asynchronous queriesresults of asynchronous queries

No CPU involvement required No CPU involvement required

Occlusion culling – render bounding box, Occlusion culling – render bounding box, predicate subsequent (complex) predicate subsequent (complex) rendering on occlusion query resultrendering on occlusion query result

SummarySummary

Windows Vista Direct3D GoalsWindows Vista Direct3D Goals

Windows Vista Direct 3D Windows Vista Direct 3D TechnologiesTechnologies

Community ResourcesCommunity Resources““Windows Development” MSDN ForumsWindows Development” MSDN Forums

http://forums.microsoft.com/msdn/default.aspxhttp://forums.microsoft.com/msdn/default.aspx

General, Graphics, Tools, Performance, and General, Graphics, Tools, Performance, and AudioAudio

Notification Alerts, Messages and RSS Notification Alerts, Messages and RSS FeedsFeeds

Integrated with Visual Studio 2005Integrated with Visual Studio 2005

Advanced SearchAdvanced SearchFAQs, Answered/Unanswered QuestionsFAQs, Answered/Unanswered Questions

[email protected]@microsoft.com

http://forums.microsoft.com/msdn/default.aspx

mailto:[email protected]

Direct 3D Part 1: Utilizing The Maximum Power Of The GPU In Your Graphic-Intensive Windows Vista...

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