Unreal Engine 4.9 Preview

[Mosel3y]

Small bug in preview 4: When adding a TextRender component to a blueprint actor and changing its text value, it won't update the change in the blueprint viewport until you save and close the blueprint, then re-open it.

[TriNityGER]

Not sure if it is intended but if I edit axis or action mappings and have some groups closed and I add a new mapping to an opened group, several other groups open up themselves.
This can be quite annoying if you have many groups with multiple mappings...

EDIT: Another bug:
The array get input pin is hard to plug in:

[pafupafu]

Was the issue of red screen of Nexus 9 solved in this Preview 4?
I can't build with VS2013.

[Adam Davis]

Small bug in preview 4: When adding a TextRender component to a blueprint actor and changing its text value, it won't update the change in the blueprint viewport until you save and close the blueprint, then re-open it.

Hi Mosel3y,

I was able to reproduce this and have entered a bug report, UE-20355, to be assessed by the development staff.

[Samantha Sutton]

Also when packing a game for android the packing seems to hang on:

MainFrameActions: Packaging (Android (All)): UE4Editor-Cmd: [2015.08.19-11.15.23:259][ 0]LogSavePackage:Warning: Finished SavePackage C:/Users/KillerSneak/Documents/Unreal Projects/Balloony PoP Revised 4.9/Saved/Cooked/Android/Engine/Content/EditorMeshes/ColorCalibrator/SM_ColorCalibrator.uasset

For a very long time compared to Preview3, it does complete build but it's just something I observed.

Hey KillerSneak,

Have you submitted an AnswerHub for this issue you're having with Android? If not, could you please create one and provide us with a full .txt file of the error?

Thanks!

[mborromeo]

Anybody with strange error while pressing "Compile" from Editor?
Just trying to compile a very basic c++ class which was perfectly working on 4.8, but doesn't on 4.9 due to this strange error:

Warning: Starting HotReload took 0.0s.
CompilerResultsLog: New page: Compilation - Aug 26, 2015, 12:21:57 AM
CompilerResultsLog: Info
CompilerResultsLog: Info Running Mono...
CompilerResultsLog: Info
CompilerResultsLog: Info Setting up Mono
CompilerResultsLog: Info ~/ue4.9-p4/Engine ~/ue4.9-p4/Engine/Binaries/Mac
CompilerResultsLog: Info Compiling game modules for hot reload
CompilerResultsLog: Info Performing 2 actions (8 in parallel)
CompilerResultsLog: Info [1/2] Compile PlayCloud.cpp
CompilerResultsLog: Info [2/2] Link UE4Editor-TestProject-2556-Mac-Debug.dylib
CompilerResultsLog: Info clang: error: no such file or directory: '???/Users/marborromeo/Documents/Unreal Projects/TestProject/Intermediate/Build/Mac/UE4Editor/Debug/TestProject/TestProject.cpp.o'
CompilerResultsLog: Info -------- End Detailed Actions Stats -----------------------------------------------------------
CompilerResultsLog: Info ERROR: UBT ERROR: Failed to produce item: /Users/marborromeo/Documents/Unreal Projects/TestProject/Binaries/Mac/UE4Editor-TestProject-2556-Mac-Debug.dylib
CompilerResultsLog: Info Total build time: 12.71 seconds
LogMainFrame: MainFrame: Module compiling took 14.394 seconds
Warning: HotReload failed, recompile failed

UE4.9 compiled from source (commit f5e5090 - tag 4.9.0-preview-4) on OSX 10.10.4 / XCode 6.4 + custom patch (removed "-fno-rtti" from MacToolChain.cs).

Maybe that "???" in the path is preventing the linker to find the object file? How can i get rid of those question marks?

[Chris Babcock]

Was the issue of red screen of Nexus 9 solved in this Preview 4?
I can't build with VS2013.

The red screen on Nexus 9 issue was fixed for 4.9 but a compile issue was introduced for OpenGL ES 3.1 when MSAA support was added. Here is the GitHub commit to fix it:

https://github.com/EpicGames/UnrealE...2484c15428e1fa

[NorseHorse1492]

Are we gonna see Sequencer and the Skeletal Animation Tool in 4.9?

[John Alcatraz]

a compile issue was introduced for OpenGL ES 3.1 when MSAA support was added.

Will we also get MSAA support on DirectX, so on desktop platforms?

[TriNityGER]

Will we also get MSAA support on DirectX, so on desktop platforms?

Personally I dont think so. AFAIK MSAA with deferred shading doesn't work well(bad performance?). Though I'm not a rendering dude so I might be wrong...

[hls333555]

"Level Blueprints can now be communicated with via interfaces using the Get Streaming Level node"

How can I implement these?Thanks!

And there maybe a BUG concerning Decal on mobile,posted here:https://answers.unrealengine.com/que...obile-bug.html

[John Alcatraz]

Personally I dont think so. AFAIK MSAA with deferred shading doesn't work well(bad performance?). Though I'm not a rendering dude so I might be wrong...

I know about the issues regarding MSAA and deferred rendering, but how can they add it on mobile then? Do they not use deferred rendering on mobile?

[pafupafu]

The red screen on Nexus 9 issue was fixed for 4.9 but a compile issue was introduced for OpenGL ES 3.1 when MSAA support was added. Here is the GitHub commit to fix it:

https://github.com/EpicGames/UnrealE...2484c15428e1fa

In first time compile."Development Editor" "Win64"
I have compile issue even now.

Error 4 error MSB3073: The command "..\..\Build\BatchFiles\Build.bat UE4Editor Win64 Development" exited with code -1. C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.MakeFile.Targets 38 5 UE4
Error 1 error C2065: 'bAttributeLessDraw' : undeclared identifier G:\UnrealEngine-7ad908a202fd828eada8d9f6262484c15428e1fa\Engine\Source\Runtime\OpenGLDrv\Private\OpenGLCommands.cpp 2803 1 UE4
Error 2 error C1020: unexpected #endif G:\UnrealEngine-7ad908a202fd828eada8d9f6262484c15428e1fa\Engine\Source\Runtime\OpenGLDrv\Private\OpenGLCommands.cpp 2809 1 UE4
Error 3 error : Failed to produce item: G:\UnrealEngine-7ad908a202fd828eada8d9f6262484c15428e1fa\Engine\Binaries\Win64\UE4Editor-OpenGLDrv.dll G:\UnrealEngine-7ad908a202fd828eada8d9f6262484c15428e1fa\Engine\Intermediate\ProjectFiles\ERROR UE4

Edit the"BaseEngine.ini",and compile"Development" "Win64" and "Development" "Android".
I have lot of error.

[IcedVenom]

Will this finally make my door able to rotate by pressing a key? It's been bugged for a while I'm pretty sure.

[mborromeo]

Anybody with strange error while pressing "Compile" from Editor?
Just trying to compile a very basic c++ class which was perfectly working on 4.8, but doesn't on 4.9 due to this strange error:



UE4.9 compiled from source (commit f5e5090 - tag 4.9.0-preview-4) on OSX 10.10.4 / XCode 6.4 + custom patch (removed "-fno-rtti" from MacToolChain.cs).

Maybe that "???" in the path is preventing the linker to find the object file? How can i get rid of those question marks?

Nevermind, sounds like the issue has been fixed after the 4.9.0-preview-4 tag.
Cherry-picking commit a0e5767badb5ebb3d285633b1f45cc24ffebd8cc did the trick.

Keep up the good work!