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Results tagged with unreal-4
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user 49599
Unreal Engine 4 is a professional suite of tools and technologies used for building high-quality games across a range of platforms.
2
votes
1
answer
6k
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Unreal engine 4 - Actor not updating (when instancing on c++)?
My custom actor (containing a few custom UMeshComponent) does not update when I change its location or the visibility of its components.
I instantiate it this way in StartPlay() of my GameMode class: …
- 291
1
vote
1
answer
3k
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UE4: Subclass problem: cannot access private member declared in parent class?
I get the following error:
[...]\ClassB.cpp:7: erreur : C2248: 'UClassA::UClassA' : cannot access private member declared in class 'UClassA'
[...]\ClassA.h:12: see declaration of 'AClassA::AClass …
- 291
1
vote
0
answers
5k
views
How does the Unreal Engine transaction (undo/redo) system work?
I would like the transaction system to handle the create/update/deletion of some custom objects.
Then I can proceed as follow:
// Create custom object:
GEditor->BeginTransaction(FText::FromString("C …
- 291
1
vote
0
answers
76
views
How to use GetViewProjMatrix().TransformVector(LineDirection) in UE4?
I try to project a 3D vector (a direction, not a position) in screen space, but it does not return satisfying results:
FVector LineDirectionOnScreen =
EdMode->ViewMatrices.GetViewProjMatrix().Tr …
- 291
2
votes
1
answer
3k
views
How to avoid gimbal lock in Unreal Engine (c++)?
I created an orbit camera (sometimes called turntable camera; similar to the one with the "use UE3 orbit controls" setting in a static mesh view).
I attached the camera to a USpringArmComponent with …
- 291