Frame issues in Prepar3D v4.5

[srce]

Hi,

I'm seeing a similar problem.

FSL A320 @ UK2000 EGKK and ORBX TE GB sitting on runway goes from 23 FPS (4.4) to 14 FPS (4.5)
FSL A320 @ FlyTampa VHHX 30 FPS to 26 FPS
Default scenario. F22 @ KVPS vsync=0 84 FPS to 75 FPS

Windows 10 64-bit 1809 17763.437
i9-7980XE 18-Core HT-disabled
NVidia GTX 1080 Ti - drivers 425.31 - 3840x2160 @ 60Hz - single monitor
64GB RAM

Disabled addons except for ORBX (vector, global, openLC NA, regions and TE, trees) + SODE + FSUIPC free version
Shader cache has been deleted.
GEForce experience in-game overlay disabled


Prepar3D.cfg

[GRAPHICS]
SCREEN_CAPTURE_MAX_JOBS=10
VIDEO_CAPTURE_WIDTH=720
VIDEO_CAPTURE_HEIGHT=480
VIDEO_CAPTURE_FPS=30
VIDEO_CAPTURE_BIT_RATE=3200000
VIDEO_CAPTURE_IS_THREADED=True
VIDEO_CAPTURE_INFO_SEND_RATE=20
VIDEO_CAPTURE_MAX_FRAME_SIZE=500000
VIDEO_CAPTURE_TTL=255
HDR_BRIGHTNESS=0.700000
HDR_BLOOM_THRESHOLD=3.000000
HDR_BLOOM_MAGNITUDE=0.840000
HDR_BLOOM_BLUR_SIGMA=0.800000
TONEMAP_DAY_EXPOSURE_KEY=0.280000
TONEMAP_NIGHT_EXPOSURE_KEY=0.130000
HDR_SATURATION=0.800000
MAX_POINT_LIGHTS=250
MAX_SPOT_LIGHTS=250
ViewGroup_Number=-1
MAP_DRAW_THREADED=1
MIPMAP_VC_PANELS=1
TEXTURE_MAX_LOAD=2048
NUM_LIGHTS=4
COCKPIT_HIGH_LOD=1
AIRCRAFT_REFLECTIONS=1
LANDING_LIGHTS=1
DYNAMIC_LIGHTING=1
DAWN_DUSK_SMOOTHING=1
LENSFLARE=1
HDR=1
DYNAMIC_REFLECTIONS=1
SHADOW_QUALITY=2
SHADOW_DRAW_DISTANCE=0
CONTENT_NO_SHADOW=0
INTERIOR_SHADOWS_CAST=1
EXTERIOR_SHADOWS_CAST=1
SIMOBJECT_SHADOWS_CAST=0
TERRAIN_SHADOWS_CAST=0
VEGETATION_SHADOWS_CAST=0
BUILDING_SHADOWS_CAST=0
CLOUD_SHADOWS_CAST=0
PARTICLES_SHADOWS_CAST=0
INTERIOR_SHADOWS_RECEIVE=1
EXTERIOR_SHADOWS_RECEIVE=1
SIMOBJECT_SHADOWS_RECEIVE=1
TERRAIN_SHADOWS_RECEIVE=1
VEGETATION_SHADOWS_RECEIVE=0
BUILDING_SHADOWS_RECEIVE=0
SHADOW_NUM_CASCADES_LOW=4
SHADOW_NUM_CASCADES_MID=5
SHADOW_NUM_CASCADES_HIGH=7
SHADOW_NUM_CASCADES_ULTRA=12
OPAQUE_SHADOW_TEXTURE_SIZE=2048
TRANSLUCENT_SHADOW_TEXTURE_SIZE=512
OPAQUE_SHADOW_DRAW_DISTANCE=2000
TRANSLUCENT_SHADOW_DRAW_DISTANCE=2000
SHADOW_LOG_PARTITION_LOW=0.850000
SHADOW_LOG_PARTITION_MID=0.850000
SHADOW_LOG_PARTITION_HIGH=0.850000
SHADOW_LOG_PARTITION_ULTRA=0.850000
EFFECTS_QUALITY=1
EFFECTS_DISTANCE=1
TEXTURE_QUALITY=3
IMAGE_QUALITY=0
See_Self=1
Text_Scroll=1
RS_MIN_OBJECT_PIXEL_RADIUS=2.000000
MAX_TEXTURE_REQUEST_DISTANCE=1000.000000
MOON_PHASE_LIGHTING=True
DYNAMIC_INTERIOR_CAPTURE=False
[WEATHER]
CLOUD_FACING_MODE=0
MinGustTime=10
MaxGustTime=500
MinGustRampSpeed=1
MaxGustRampSpeed=200
MinVarTime=5
MaxVarTime=50
MinVarRampSpeed=10
MaxVarRampSpeed=75
TurbulenceScale=1.000000
WeatherGraphDataInDialog=0
AdjustForMagVarInDialog=1
DynamicWeather=0
DownloadWindsAloft=0
DisableTurbulence=0
CLOUD_DRAW_DISTANCE=5
DETAILED_CLOUDS=1
OPTIMIZE_DENSE_CLOUDS=0
CLOUD_COVERAGE_DENSITY=7
THERMAL_VISUALS=0
VolumetricFog=1
DetailedPrecipitation=1
WindshieldPrecipitationEffects=1
[DISPLAY]
ChangeTime=4.000000
TransitionTime=4.000000
TEXTURE_FILTERING=4
TEXTUREMAXLOAD=30
MSAA=0
SSAA=2
VSYNC=1
FXAA=0
TRIPLE_BUFFER=0
SKINNED_ANIMATIONS=1
TEXTURE_BANDWIDTH_MULT=30
UPPER_FRAMERATE_LIMIT=0
WideViewAspect=0
FullScreenBackground=1
FullScreenAutoFill=1
ActiveWindowTitleTextColor=255,255,255
ActiveWindowTitleBackGroundColor=0,28,140,64
NonActiveWindowTitleTextColor=255,255,255
NonActiveWindowTitleBackGroundColor=24,33,87,64
InfoUpperLeftTextColorUser=255,0,0
InfoUpperLeftTextColorNonUser=255,127,0
InfoUpperLeftBackGroundColor=0,0,0,0
InfoUpperRightTextColor=255,0,0
InfoUpperRightBackGroundColor=0,0,0,0
InfoLowerLeftTextColor=255,255,255
InfoLowerLeftBackGroundColor=255,0,0,128
InfoLowerRightTextColor=255,255,255
InfoLowerRightBackGroundColor=255,0,0,128
InfoBrakesEnable=True
InfoParkingBrakesEnable=True
InfoPauseEnable=True
InfoSlewEnable=True
InfoStallEnable=True
InfoOverspeedEnable=True
InfoWeaponSystemEnable=True
InfoCountermeasureEnable=True
InfoUpperRightTextEnable=True
Fullscreen=True
[SCENERY]
AUTOGEN_DRAW_DISTANCE=12000.000000
AUTOGEN_TREE_DRAW_DISTANCE_PERCENT=0.900000
AUTOGEN_TREE_MIN_DISTANCE_TO_LOD=2500.000000
MaxRegionsPurgePerFrame=16
POP_FREE_AUTOGEN=1
AUTOGEN_BATCH_LOD=2
AUTOGEN_VEGETATION_TYPE=0
IMAGE_COMPLEXITY=4
SCENERY_DRAW_DISTANCE=32000.000000
[MAIN]
User Objects=Airplane, Helicopter, Submersible, ExternalSim, Avatar
LabelsSupported=Airplane, Helicopter
Location=0,0,3840,2160,\\.\DISPLAY1
LocationFullScreen=0,0,3840,2160,\\.\DISPLAY1
ShowInfoText=1
Maximized=1
HideMenuNormal=0
HideMenuFullscreen=1
[PANELS]
IMAGE_QUALITY=1
SAVE_AND_LOAD_PANEL_STATE=0
MAX_VC_TEXTURE_RESOLUTION=4096
PANEL_OPACITY=100
QUICKTIPS=1
PANEL_MASKING=1
PANEL_STRETCHING=1
UNITS_OF_MEASURE=0
PANELS_ALWAYS_ON_TOP=1
[CONTROLS]
Controls_Default=Standard
Controls_Current=Standard
KBDAIL=64
KBDELEV=64
KBDRUD=64
[TextInfo.1]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
WindDirectionAndSpeed=1,6
[TextInfo.2]
FrameRate=1,1
LockedFrameRate=1,2
GForce=1,3
FuelPercentage=1,4
HealthPoints=1,5
[TextInfo.3]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
WindDirectionAndSpeed=1,6
FrameRate=2,1
LockedFrameRate=2,2
GForce=2,3
FuelPercentage=2,4
HealthPoints=2,5
[SlewTextInfo.1]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
[SlewTextInfo.2]
FrameRate=1,1
LockedFrameRate=1,2
HealthPoints=1,3
[SlewTextInfo.3]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
FrameRate=2,1
LockedFrameRate=2,2
HealthPoints=2,3
[Avatar]
DefaultAvatar=Army Infantry
[DynamicHeadMovement]
LonAccelOnHeadLon=-0.020000
LonAccelOnHeadPitch=-0.010000
RollAccelOnHeadLat=0.010000
YawAccelOnHeadLat=-0.100000
RollAccelOnHeadRoll=0.100000
MaxHeadAngle=5.000000
MaxHeadOffset=0.300000
HeadMoveTimeConstant=1.000000
[VirtualCopilot]
VirtualCopilotActive=0
[USERINTERFACE]
SHOW_SCENARIO_WINDOW=1
BroadcastGPSData=0
PAUSE_ON_LOST_FOCUS=0
PROMPT_ON_EXIT=1
RestoreTimeOnMove=1
ScreenshotImageFormat=2
SHOW_MISSION_CAPTIONS=1
Map_Orientation=2
MUTE_ON_LOST_FOCUS=0
ShowMessageText=True
[DISPLAY.Device.NVIDIA GeForce GTX 1080 Ti.0.0]
Mode=3840x2160x32
[TrafficManager]
AirlineDensity=0
GADensity=0
FreewayDensity=0
ShipsAndFerriesDensity=5
LeisureBoatsDensity=1
IFROnly=0
AIRPORT_SCENERY_DENSITY=2
[AContain]
ShowLabels=1
ShowUserLabel=0
ShowLabelManufacturer=0
ShowLabelModel=1
ShowLabelTailNumber=0
ShowLabelDistance=1
ShowLabelAltitude=1
ShowLabelAirline=0
ShowLabelAirlineAndFlightNumber=0
ShowLabelFlightPlan=0
ShowLabelContainerId=0
ShowLabelAirspeed=0
ShowLabelHeading=0
LabelDelay=1000
LabelColor=FFFF0000
EnableRibbonVisuals=0
ShowRibbonUserObject=0
ShowRibbonUserAvatar=0
ShowRibbonAircraft=0
ShowRibbonGroundVehicles=0
ShowRibbonBoats=0
ShowRibbonAvatars=0
ShowRibbonWeapons=0
ShowRibbonCountermeasures=0
UserObjectRibbonColor=0,00000000
UserAvatarRibbonColor=0,00000000
AircraftRibbonColor=0,00000000
GroundVehicleRibbonColor=0,00000000
BoatRibbonColor=0,00000000
AvatarRibbonColor=0,00000000
WeaponRibbonColor=0,00000000
CountermeasureRibbonColor=0,00000000
RibbonFidelity=5.000000
RibbonMaxDistance=3218.689941
RibbonThicknessSettingIndex=0
RibbonThicknessSmall=1.000000
RibbonThicknessMedium=5.000000
RibbonThicknessLarge=10.000000
RibbonFadeTime=-1.000000
RibbonDoNotExceedTime=-1.000000
[TERRAIN]
TEXTURE_SIZE_EXP=9
LOD_RADIUS=4.500000
TESSELLATION_FACTOR=90
MESH_RESOLUTION=25
TEXTURE_RESOLUTION=29
AUTOGEN_VEGETATION_DENSITY=3
AUTOGEN_BUILDING_DENSITY=3
DETAIL_TEXTURE=1
HIGH_RESOLUTION_TERRAIN_TEXTURES=1
WATER_REFLECT_CLOUDS=1
WATER_REFLECT_USERAIRCRAFT=1
WATER_REFLECT_SIMOBJECTS=0
WATER_REFLECT_TERRAIN=0
WATER_REFLECT_AUTOGEN_VEGETATION=0
WATER_REFLECT_AUTOGEN_BUILDINGS=0
WATER_REFRACT_CLOUDS=0
WATER_REFRACT_USERAIRCRAFT=0
WATER_REFRACT_SIMOBJECTS=0
WATER_REFRACT_TERRAIN=0
WATER_REFRACT_AUTOGEN_VEGETATION=0
WATER_REFRACT_AUTOGEN_BUILDINGS=0
ENABLE_BATHYMETRY=0
WATER_CLARITY=30
WATER_DETAIL=3
UseGlobalTerrainView=False
[ATC]
AutoOpenAirTrafficWindow=1
UsePilotVoice=1
ShowATCText=1
PilotVoice=0
COMM_MSG_AI_ATC_COLOR=0XFF8C00
COMM_MSG_ATC_AI_COLOR=0X00008B
COMM_MSG_ATC_USER_COLOR=0X006400
COMM_MSG_USER_ATC_COLOR=0XA52A2A
COMM_MSG_ATIS_COLOR=00000000
[INTERNATIONAL]
ASLAT=2
ASLON=0
MEASURE=0
[REALISM]
PFactor=1.000000
Torque=1.000000
GyroEffect=1.000000
CrashTolerance=1.000000
General=1.000000
UnlimitedFuel=False
AllowEngineDamage=True
TrueAirspeed=False
AutoCoord=False
RealMixture=True
StressDamage=False
GEffect=True
ManualLights=True
GyroDrift=False
CrashWithDyn=True
CrashDetection=False
AvatarNoCollision=False
OnCrashAction=0
AutoTrim=False
MomentumEffect=True
[ATTACHMENTS]
WeaponHighlight=False
HighlightDuration=1.000000
AutoWeaponSwitching=False
UnlimitedWeapons=False
UnlimitedCountermeasures=False
IgnoreAttachmentWeight=True
IgnoreAttachmentForces=True
[RECORDER]
RecordAITraffic=True
RecordAirportVehicles=True
RecordLeisureBoats=True
[SIM]
SYSCLOCK=0
OPTIMIZE_PARTS=1
[SOUND]
SOUND=1
SOUND_QUALITY=2
SOUND_LOD=0
PrimaryPlaybackDevice={DEF00000-9C6D-47ED-AAF1-4DDA8F2B5C03}
VoicePlaybackDevice={DEF00002-9C6D-47ED-AAF1-4DDA8F2B5C03}
VoiceCaptureDevice={DEF00003-9C6D-47ED-AAF1-4DDA8F2B5C03}
SOUND_FADER1=0.500000
SOUND_FADER2=0.500000
SOUND_FADER3=0.500000
SOUND_FADER4=0.500000
[STARTUP]
DEMO=0
STARTUP_DEMO=
LOAD_SCENARIO_TOOLS=1
LoadCorePlugins=1
LoadVirtualReality=1
EnableVirtualRealityOnStartup=0
EnableVoiceControl=0
LoadWindow=1
EnableVoiceControlDebug=0
EnableViveProEyeTracking=0
[PointOfInterestSystem]
CycleSetting=0
[FACILITIES]
COUNTRY=
STATE=
CITY=
GTL_BUTTON=4096
[MISC]
Com_Rate=7
[FlightPlanMap]
LineWidth=2
[MULTIPLAYER]
FrameSyncRate=0

[Rob Ainscough]

Srce,

Please do NOT post your entire Prepar3d.cfg as a text listing in these forums ... offer a link to the file if you feel it's required.

Thorsten,

What is "polyline autogen buildings"? Did you mean Polygons?

Others with FPS problems,

My suggestion for those with performance issues is to:

1. Backup/copy your Prepar3d.cfg then delete your Prepard3d.cfg and let P3D generate a new default one
2. Delete your shaders folder and disable any 3rd party shader products (do NOT use those shader products restore option as that will restore older files from v4.4), however you might need to find OS original DXGI
3. Recommend updating Client AND Content (see Elaine's how to listed here)
4. AVX/2 is used, so if you Overclock it's best to keep the AVX value the same (i.e. offset = 0) ... be aware AVX generates much more heat and has the potential to trigger thermal throttling
5. Basic diagnostics, disable add-ons and test FPS, if FPS is good, then add back ONE add-on and test again, repeat adding just ONE add-on each time until possible source of FPS reduction is found
6. Don't use any nVidia Inspector settings while trying to isolate

Unfortunately I've not been able to replicate any FPS issues, but I don't doubt these problems are real for some and must be frustrating to experience after updating. In order for LM to fix problems, they MUST be able to replicate them.

Cheers, Rob.

[sma69]

Srce,

Please do NOT post your entire Prepar3d.cfg as a text listing in these forums ... offer a link to the file if you feel it's required.

Thorsten,

What is "polyline autogen buildings"? Did you mean Polygons?

Others with FPS problems,

My suggestion for those with performance issues is to:

1. Backup/copy your Prepar3d.cfg then delete your Prepard3d.cfg and let P3D generate a new default one
2. Delete your shaders folder and disable any 3rd party shader products (do NOT use those shader products restore option as that will restore older files from v4.4), however you might need to find OS original DXGI
3. Recommend updating Client AND Content (see Elaine's how to listed here)
4. AVX/2 is used, so if you Overclock it's best to keep the AVX value the same (i.e. offset = 0) ... be aware AVX generates much more heat and has the potential to trigger thermal throttling
5. Basic diagnostics, disable add-ons and test FPS, if FPS is good, then add back ONE add-on and test again, repeat adding just ONE add-on each time until possible source of FPS reduction is found
6. Don't use any nVidia Inspector settings while trying to isolate

Unfortunately I've not been able to replicate any FPS issues, but I don't doubt these problems are real for some and must be frustrating to experience after updating. In order for LM to fix problems, they MUST be able to replicate them.

Cheers, Rob.

Dear Rob.

Hello. I've been through all your videos and your website, Reading through all of threads and topics and posts and guides for the whole time after release till now ( just had 4-5 hours of sleep ) did all those cleanings , if you have a look at my previous post here you'll see, even cleaned all the traces from 4.4 in the registry , the Local folder/Program data/Roaming... etc etc... All deleted. even my document folder and all of it's contents... no ... nothing helped. and I realized, in a sceneries like GCTS by Digital Design or KATL by Imaginesim, OMDB by Flytampa, tested them all, the rendering core ( Core 0 ) unlike the times in older version which was ramped up to 100%, is just roaming around 10-20% ... So I don't know what is it all about. But I just reinstalled 4.4 right now. Saved me big fat headache.

Sincerely yours

Saman Mahdi Abadi

[keenrw]

Srce,


My suggestion for those with performance issues is to:

1. Backup/copy your Prepar3d.cfg then delete your Prepard3d.cfg and let P3D generate a new default one
2. Delete your shaders folder and disable any 3rd party shader products (do NOT use those shader products restore option as that will restore older files from v4.4), however you might need to find OS original DXGI
3. Recommend updating Client AND Content (see Elaine's how to listed here)
4. AVX/2 is used, so if you Overclock it's best to keep the AVX value the same (i.e. offset = 0) ... be aware AVX generates much more heat and has the potential to trigger thermal throttling
5. Basic diagnostics, disable add-ons and test FPS, if FPS is good, then add back ONE add-on and test again, repeat adding just ONE add-on each time until possible source of FPS reduction is found
6. Don't use any nVidia Inspector settings while trying to isolate

Unfortunately I've not been able to replicate any FPS issues, but I don't doubt these problems are real for some and must be frustrating to experience after updating. In order for LM to fix problems, they MUST be able to replicate them.

Cheers, Rob.

1) already done
2) already done , no add on shaders used just default P3D
3) Done
4) dont use that
5) why? if the FPS was ok with the add on before yet is lower with the new 4.5 its not an add on thats causing it
6) dont use NV i for P3D
something must have been added in the 4.5 update thats caused it .. new autogen .. new textures etc , any new performance decreasing stuff should really be left till P3Dv5
Thanks
Rich

[paj]

I’m also experiencing a loss of FPS following updating Client and Content from 4.4 to 4.5.

My default scenario is sitting on runway 16 at YMML (Orbx Australia/Vector/Base/YMML, PMDG 738, ActiveSky, FSUIPC, GSX, UTLive, OpusFSI, SODE), unlimited frames, vsync and triple buffering.
4.5 client = 20 FPS
4.4 client = 29 FPS

I’ve now uninstalled/reinstalled the Client numerous times (deleting shader cache and scenery index each time) and simply switching between client 4.4 and 4.5 results in this ~30% FPS change. I’ve tried disabling each addon one at a time but with no luck.

I also tried disabling all addons which yielded a much smaller but repeatable, loss of FPS. Again at YMML but with all addons disabled (other than the Orbx Base textures which overwrote the default textures) and using the F22Raptor:
4.5 client = 73 FPS (with vsync off)
4.4 client = 84 FPS (with vsync off)

System specs:
Win 10 Pro x64 (v1809)
I7-7700K @5GHz, 32Gb RAM, nvidia 1080Ti (driver v418.91), single monitor (3440x1440).
Overlay and GameStream in Geforce Experience disabled. No custom Nvidia Inspector settings set.

I’m happy to assist with any testing.

Regards, Peter

[Rob Ainscough]

5) why? if the FPS was ok with the add on before yet is lower with the new 4.5 its not an add on thats causing it

Hi Rich, we're simply trying to perform diagnostics and locate a source, once source is located then that provides additional information to work with and could aid in trying to replicate. Replication is key to getting an issue addressed either by vendor or by LM as deemed appropriate.

Cheers, Rob.

[badapple]

I have a small loss on FPS However, now I am getting stutters in level flight. It gets so bad that the popup like it is loading appears and stops all simulator progress.

I was on a 6 hour flt over Indonesia to Australia. The stutter or slight pause caused the sim to crash.

never happened on 4.4.

[Saldo]

5) why? if the FPS was ok with the add on before yet is lower with the new 4.5 its not an add on thats causing it

Hi Rich, we're simply trying to perform diagnostics and locate a source, once source is located then that provides additional information to work with and could aid in trying to replicate. Replication is key to getting an issue addressed either by vendor or by LM as deemed appropriate.

Cheers, Rob.

Hi Rob,

From another thread at Orbx I have understood that loading while flying has improved but the first time the Sim is loaded will take longer. Also more memory is being used now
That is no problem as I have memory enough.
At Schiphol , after the scenery has been loaded it now can take up to 1 min before all aircraft have their textures...

On my setup the stability has become less when slewing. Up to V4.4 I could Slew around a large airport without issues and now after several times V4.5 will hang as it the window becomes white without responding . The same after a clean install.

I now wait an additional minute after the longer loading before starting. Then when taxiing and flying over TU NL no issues...

Regards,
Gerard

[Saldo]

Additional :

Just tried slewing a few times over TE NL Amsterdam. At the first time a blue screen with a Watchdog Time-out, which pointe to errors made by the cpu.
My system is rocksolid in 4.4. If a 7940X 14 core stumbles ....

Tried again at a non OC cou speed and the same error .

[autopiloth]

Thorsten,

What is "polyline autogen buildings"? Did you mean Polygons?

Rob, I mean those autogen buildings that don´t use a rectangular footprint. Those polyline autogen buildings are created wit a polygonal shape defining the outer and inner border of the building. Those are mostly used in dense city areas and are causing a huge frame drop.

More can be found in the SDK at the autogeneration section. Picture:
http://www.prepar3d.com/SDKv4/sdk/world ... amples.jpg

Thorsten

[sw34669]

Ok have found my issue or the issue

Scenery distance I always have set to high as this means if i am landing on rw 5 at glasgow, edinburgh does not pop in and cause a long frame (uk2000 airports). In 4.4, High meant I would get a long pause when edin/gla got to 25 mark. When I landed today at glasgow I had the route arc up and just as edinburgh hit the 40 mark ahead of me I got a long frame.

I can see with the same in game settings on that first detail slider I am now loading in a radius of 40 and not 25. This would also account for the additional memory usage.

LM, can you conirm what im seeing here ? The only reason I noticed this so quickly is the ongoing issue with UK2000 airports where theres a 3-4 second megaframe whilst libraries load. This always happened 25 out now it's 40. For me this is the smoking gun. I may have missed the changlog mentioning changing the calibration of that first detail slider.

[dsymanow]

Is there a v4.5 change log that contains more details on what has changed? If AVX is now used that a big deal to those who overclock (due to the potential heat issues). I'd like to confirm the AVX change, and also see what else has changed.

Thanks.

[sw34669]

last observation .... the top lod slider that I normally have set mid way (High) used to have a large impact on framerate and mem usage when set to Ultra vs high vs medium. This is no longer the case, flying in central Scotland on approach to UK2000 airports I get 16FPS (4.4 I had 30), moving LOD up to Ultra, same 16FPS, moving it down to medium, 16FPS and same memory footprint (RAM and Vmem).

It almost feels like that first slider is stuck on max and isnt reducing, when lowered.

[hjmx]

last observation .... the top lod slider that I normally have set mid way (High) used to have a large impact on framerate and mem usage when set to Ultra vs high vs medium. This is no longer the case, flying in central Scotland on approach to UK2000 airports I get 16FPS (4.4 I had 30), moving LOD up to Ultra, same 16FPS, moving it down to medium, 16FPS and same memory footprint (RAM and Vmem).

It almost feels like that first slider is stuck on max and isnt reducing, when lowered.

I even get reproducible CTDs when I try to move that slider during a flight over demanding scenery

[truthknown]

Hi Rob,

From another thread at Orbx I have understood that loading while flying has improved but the first time the Sim is loaded will take longer. Also more memory is being used now
That is no problem as I have memory enough.
At Schiphol , after the scenery has been loaded it now can take up to 1 min before all aircraft have their textures...

On my setup the stability has become less when slewing. Up to V4.4 I could Slew around a large airport without issues and now after several times V4.5 will hang as it the window becomes white without responding . The same after a clean install.

I now wait an additional minute after the longer loading before starting. Then when taxiing and flying over TU NL no issues...

Regards,
Gerard

I have a very similar problem. Loading the sim takes substantially longer, particularly when I have Chris Bell's night environment regions active. It looks like a long freeze from clicking OK on the scenario window to actually seeing the loading progress bar. It takes 4 mins now before the progress bar shows up, then loading commences from there at its normal pace.

I also get the freezing when slewing around. At points it will completely lock up for as long as minute or more.

Although I am seeing somewhat of an overall FPS improvement, I do see the random severe FPS drops every few seconds which lead to significant stutters. As I fly almost exclusively in VR, it makes it a very unstable and unsatisfying experience as VR needs the steady frame rate.

Thanks,
Chris