Nvidia ForceWare Graphics Drivers Frame Synchronization Скачать руководство пользователя страница 25 | Manualshive

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Nvidia ForceWare Graphics Drivers Frame Synchronization Скачать руководство пользователя страница 25

NVIDIA Corporation

22

Frame Synchronization User’s Guide

– Version 3.0

C

HAPTER

3

Using the OpenGL Extensions

C

H A P T E R

U

SING

THE

O

PEN

GL E

XTENSIONS

This chapter explains how to use the OpenGL extensions supported by the NVIDIA
driver for accomplishing frame synchronization of applications.

•

“Frame Synchronization Using the OpenGL Extensions” on page 23

explains the

principles behind swap groups, and describes the OpenGL extensions to use to control
frame lock and swap sync functions.

•

“OpenGL Extensions” on page 28

details the API calls for the extensions.

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Содержание ForceWare Graphics Drivers Frame Synchronization

Страница 1: ...ForceWare Graphics Drivers FrameSynchronization User s Guide Version 3 0 NVIDIA Corporation August 14 2006...

Страница 2: ...DIA the NVIDIA logo 3DFX 3DFX INTERACTIVE the 3dfx Logo STB STB Systems and Design the STB Logo the StarBox Logo NVIDIA nForce GeForce NVIDIA Quadro NVDVD NVIDIA Personal Cinema NVIDIA Soundstorm Vant...

Страница 3: ...6 Genlock Quick Start Guide 6 Detailed Setup Instructions 7 Additional Setup Instructions 10 How To Set Up Frame Lock 13 Frame Lock Quick Start Guide 13 Detailed Setup Instructions 14 Testing the Conn...

Страница 4: ...N V I D I A C o r p o r a t i o n N V I D I A D r i v e r s F r a m e S y n c h r o n i z a t i o n U s e r s G u i d e V e r s i o n 3 0...

Страница 5: ...his Document This document explains how to use NVIDIA Frame Lock hardware and software to enable you to create one large virtual canvas using multiple displays It contains the following main sections...

Страница 6: ...ion with an NVIDIA Quadro FX 4400 NVIDIA Quadro FX 4500 or an NVIDIA Quadro FX 5500 graphics card NVIDIA Forceware Graphics Driver version 52 72 or later NVIDIA Quadro FX 4500 support requires version...

Страница 7: ...graphics the display graphics must be synchronized with the video camera As another example applications presented on multiple displays must be synchronized in order to complete the illusion of a larg...

Страница 8: ...processes Frame Lock Frame lock involves the use of hardware to synchronize the frames on each display in a connected system When an application is displayed across multiple monitors frame locked syst...

Страница 9: ...in conjunction with an NVIDIA Quadro FX 4400 4500 or 5500 graphics card Install the NVIDIA Quadro G Sync card into any available expansion slot within six inches of the G Sync connector on the appropr...

Страница 10: ...asic steps to genlocking a system Detailed instructions are provided in the section Detailed Setup Instructions on page 7 1 Set Up the Hardware Connect the external sync source to the BNC connector on...

Страница 11: ...LED on the connector panel A green LED means the hardware has detected the timing signal and you can proceed to the next step An occasional red flash is OK A red LED means the hardware can t detect t...

Страница 12: ...system as list arrow and then click Server 4 Click the Use house sync check box 5 If the external signal is an interlaced signal such as used to drive a 1080i60 display then click the Sync to field 1...

Страница 13: ...rmation about the status indicators Using the New NVIDIA Control Panel If your driver version includes the new NVIDIA Control Panel you can set up the software as follows 1 Right click the desktop and...

Страница 14: ...cting a house sync signal for the first time or after clicking Restore Defaults and then Apply Matching the External House Signal Frequency After connecting the house sync the external sync signal fre...

Страница 15: ...refresh rate that you may have selected from the refresh rate list Detecting the Incoming Signal Type NVIDIA Genlock supports the following external synchronization signal types TTL 3 3 volt level Com...

Страница 16: ...at the BNC connector Sync Ready Green indicates that a sync pulse is present Timing Indicates whether the timing is locked to the sync signal Green The timing is locked to the house sync Grey The tim...

Страница 17: ...systems together using standard CAT5 patch cabling WARNING The voltage and signal on the frame lock ports are different from Ethernet signals Do not connect a Frame lock port to an Ethernet card or n...

Страница 18: ...15 A flashing green LED indicates an input and a flashing yellow LED indicates an output If there is no server assigned and connected then both LEDs are a steady green WARNING The voltage and signal...

Страница 19: ...ate to the NVIDIA graphics display properties page 2 Click the Frame Synchronization tree item from the slide out tray Figure 2 7 Frame Synchronization Page 3 Click the Treat this system as list arrow...

Страница 20: ...kstation 3 From the Workstation page click Synchronize Displays 4 Under The timing server click the On this system radio button If the system has multiple displays the driver automatically selects the...

Страница 21: ...e needed to display an entire frame Figure 2 9 Offset Applied to Sync Pulse 5 Click Apply to activate the changes Using the New NVIDIA Control Panel Perform the following steps for each client system...

Страница 22: ...status group box displays the status of the sync signals as well as the status of the RJ45 ports The two ports are represented by connector icons See Figure 2 10 Figure 2 10 Sync and Connection Status...

Страница 23: ...Red Either no signal on the frame lock connector is detected or the lock to the signal has been lost Stereo Steady green indicates that the client s stereo timing is locked to the server s stereo sig...

Страница 24: ...involves a combination of genlock and frame lock In this setup a set of client systems are connected to a system that is designated as the server as described in How To Set Up Frame Lock on page 13 T...

Страница 25: ...use the OpenGL extensions supported by the NVIDIA driver for accomplishing frame synchronization of applications Frame Synchronization Using the OpenGL Extensions on page 23 explains the principles b...

Страница 26: ...rformed on windows Swap Groups If buffer swaps must be synchronized across several windows on a single system you can define a group that consists of the specified windows Swap Barriers If buffer swap...

Страница 27: ...mentation may return zero for any of maxGroups and maxBarriers returned by QueryMaxSwapGroupsNV if swap groups or barriers are not available in that implementation or on that host Frame Counter The im...

Страница 28: ...e To select the source signal upon which to base the trigger pulse call wglGenlockSourceI3D and specify either the internal sync signal or an external sync signal To query the sync source call wglGetG...

Страница 29: ...to display an entire frame To determine the maximum delay value 1 Call the function wglQueryGenlockMaxSourceDelayI3D and obtain the values for maxLineDelay and maxPixelDelay 2 Calculate the maximum de...

Страница 30: ...barrier There is a maximum number of barriers that can be created To determine the maximum barrier number call QueryMaxSwapGroupsNV To bind a group to a barrier call BindSwapBarrierNV and specify the...

Страница 31: ...which can be queried by wglGetExtensionsStringARB This documentation covers the WGL versions of the extensions which are exported on Microsoft WindowsNT XP systems There is an equivalent Unix version...

Страница 32: ...rrent genlock enable disable state Function BOOL wglEnableGenlockI3D HDC hDC Parameters In hDC Device context for the frame lock card or a window residing on the frame lock card Return Values TRUE Suc...

Страница 33: ...card uSource WGL_GENLOCK_SOURCE_MULTIVIEW_I3D Select the internal sync signal as the sync source WGL_GENLOCK_SOURCE_EXTERNAL_SYNC_I3D Select the external house sync as the sync source Parameters Out...

Страница 34: ...FALLING_I3D Selects the falling edge of the source WGL_GENLOCK_SOURCE_EDGE_RISING_I3D Selects the rising edge of the source WGL_GENLOCK_SOURCE_EDGE_BOTH_I3D Selects both edges of the source Parameters...

Страница 35: ...te were set to a value of 2 every other sync source pulse would generate a trigger pulse uRate must be in the range of 1 6 Parameters Out Return Values TRUE Success FALSE Failure Function BOOL wglGetG...

Страница 36: ...residing on the frame lock card Parameters Out uDelay The delay in pixels from the sync source trigger edge to the actual trigger pulse Return Values TRUE Success FALSE Failure Function BOOL wglQuery...

Страница 37: ...V HDC hDC GLuint group Parameters In hDC Device context for the frame lock card or a window residing on the frame lock card group Swap group number to which the device context is to be assigned The va...

Страница 38: ...device context is bound or assigned barrier The barrier number to which the device context is bound Return Values TRUE Success FALSE Failure In this case group and barrier are undefined Function BOOL...

Страница 39: ...to zero the frame count of the swap group The call succeeds only on the master device Function BOOL ResetFrameCountNV HDC hDC Parameters In hDC Device context for the frame lock card or a window resi...

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