# \#add **URL:** https://forums.unrealengine.com/tag/add/1835.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Maths Not adding up-Skips Maths completely ](https://forums.unrealengine.com/t/maths-not-adding-up-skips-maths-completely/2669865)
**Author:** [@gamekillz-62](https://forums.unrealengine.com/u/gamekillz-62)\ **Replies:** 1\ **Last updated:** [October 30, 2025, 3:21am UTC](https://forums.unrealengine.com/t/maths-not-adding-up-skips-maths-completely/2669865 "2025-10-30T03:21:49Z")
Hey guys i Have a Very simple math node that Seems to not be working, im not the best at math but am fairly sure this is a bug, so i have this Function called from the press of a button, then it checks if {\*Clicking-T… --- ## [How to easily add new elements to a map](https://forums.unrealengine.com/t/how-to-easily-add-new-elements-to-a-map/2651860)
**Author:** [@Bdissa](https://forums.unrealengine.com/u/Bdissa)\ **Replies:** 3\ **Last updated:** [August 29, 2025, 7:57am UTC](https://forums.unrealengine.com/t/how-to-easily-add-new-elements-to-a-map/2651860 "2025-08-29T07:57:39Z")
I am adding new elements to a map inside a blueprint in UE5.5. Each time I come back to the map to add more elements, it becomes increasingly difficult to add things to the map. The way the “Add element” button on a map … --- ## [Runtime error on add item to array](https://forums.unrealengine.com/t/runtime-error-on-add-item-to-array/2496183)
**Author:** [@CodeVapor1](https://forums.unrealengine.com/u/CodeVapor1)\ **Replies:** 0\ **Last updated:** [May 7, 2025, 11:36pm UTC](https://forums.unrealengine.com/t/runtime-error-on-add-item-to-array/2496183 "2025-05-07T23:36:36Z")
i have a grid spawning system that makes the actor spawn when a specific grid slot is clicked, I am receiving an error at run time ( accessed none trying to read call function finish spawning actor\_return value) from… --- ## [Widgets are created and added as childs, but i can't see them at viewport. What's wrong?](https://forums.unrealengine.com/t/widgets-are-created-and-added-as-childs-but-i-cant-see-them-at-viewport-whats-wrong/1878566)
**Author:** [@sa1lim.RAM](https://forums.unrealengine.com/u/sa1lim.RAM)\ **Replies:** 0\ **Last updated:** [May 29, 2024, 9:17am UTC](https://forums.unrealengine.com/t/widgets-are-created-and-added-as-childs-but-i-cant-see-them-at-viewport-whats-wrong/1878566 "2024-05-29T09:17:52Z")
I wanna make dialogue, but when i create widgets with button from c++, this widgets are created, but doesn’t exist on vieport. When i tried add this widget from bp, it’s exists. What i mean. Function AddChildToVerti… --- ## [Bind multicast delegate with Add()](https://forums.unrealengine.com/t/bind-multicast-delegate-with-add/299663)
**Author:** [@itsAcren](https://forums.unrealengine.com/u/itsAcren)\ **Replies:** 3\ **Last updated:** [October 20, 2022, 9:22am UTC](https://forums.unrealengine.com/t/bind-multicast-delegate-with-add/299663 "2022-10-20T09:22:15Z")
Hello. I want to bind a method in a component to the OnTakeAnyDamage event of the owning Actor. OnTakeAnyDamage as defined in Actor.h: UPROPERTY(BlueprintAssignable, Category="Game|Damage") FTakeAnyDamageSignature OnT… --- ## [How to receive broadcast from DECLARE\_EVENT\_OneParam?](https://forums.unrealengine.com/t/how-to-receive-broadcast-from-declare-event-oneparam/490812)
**Author:** [@anonymous\_user\_23fd56db](https://forums.unrealengine.com/u/anonymous_user_23fd56db)\ **Replies:** 0\ **Last updated:** [November 11, 2021, 5:16am UTC](https://forums.unrealengine.com/t/how-to-receive-broadcast-from-declare-event-oneparam/490812 "2021-11-11T05:16:53Z")
I have got the following chunks of code: MenuWidget.h DECLARE\_EVENT\_OneParam(UMenuWidget,OnClickedButtonOpenEvent,int); OnClickedButtonOpenEvent Var; MenuWidget.cpp int send {8}; Var.Broadcast(send); MyPlayerControl… --- ## [Metahuman Actor\_001\_body](https://forums.unrealengine.com/t/metahuman-actor-001-body/484036)
**Author:** [@kisy98](https://forums.unrealengine.com/u/kisy98)\ **Replies:** 0\ **Last updated:** [May 28, 2021, 6:28am UTC](https://forums.unrealengine.com/t/metahuman-actor-001-body/484036 "2021-05-28T06:28:10Z")
How do I add Actor\_001\_body? 340058-340059- --- ## [How to add and play video in a widget?](https://forums.unrealengine.com/t/how-to-add-and-play-video-in-a-widget/471467)
**Author:** [@Mord87](https://forums.unrealengine.com/u/Mord87)\ **Replies:** 1\ **Last updated:** [September 18, 2020, 5:01pm UTC](https://forums.unrealengine.com/t/how-to-add-and-play-video-in-a-widget/471467 "2020-09-18T17:01:41Z")
Hello, I want to add and play a video in a widget. I tried everything from google. I imported the video from the movies folder. Created a Media player and added a video for it. I pulled the video file in the widget manua… --- ## [Blueprint Combine Texture2D](https://forums.unrealengine.com/t/blueprint-combine-texture2d/470664)
**Author:** [@thuynder](https://forums.unrealengine.com/u/thuynder)\ **Replies:** 2\ **Last updated:** [September 2, 2020, 1:37am UTC](https://forums.unrealengine.com/t/blueprint-combine-texture2d/470664 "2020-09-02T01:37:12Z")
NOT AS A MATERIAL. I have a Texture2d variable and i want to overlay another over it, so that i can have the texture of an item’s cooldown overlaid on the image of the item itself. I could do this with a material, but as… --- ## [Adding static mesh to an actor?](https://forums.unrealengine.com/t/adding-static-mesh-to-an-actor/464115)
**Author:** [@Kimmeey](https://forums.unrealengine.com/u/Kimmeey)\ **Replies:** 1\ **Last updated:** [April 23, 2020, 2:43am UTC](https://forums.unrealengine.com/t/adding-static-mesh-to-an-actor/464115 "2020-04-23T02:43:41Z")
It says to add a static mesh to an actor, I need to add UStaticMeshComponent to the header, but I’m not sure how to do this. I am very new to Unreal Engine, so I’m not entirely sure how this all works. Thanks in advance. … --- ## [How to add keys to Sequencer Track using C++](https://forums.unrealengine.com/t/how-to-add-keys-to-sequencer-track-using-c/449974)
**Author:** [@fBlah](https://forums.unrealengine.com/u/fBlah)\ **Replies:** 2\ **Last updated:** [October 9, 2019, 7:20am UTC](https://forums.unrealengine.com/t/how-to-add-keys-to-sequencer-track-using-c/449974 "2019-10-09T07:20:04Z")
I wanted to automate adding some float keys for my actor in the sequencer. How do I go about this? void TestBlueprintFunctionLibrary::SetFloatKey(ULevelSequence\* LevelSequence, UObject\* Object, float Value, float Time) … --- ## [Add vertices for painting on a static mesh (wall)](https://forums.unrealengine.com/t/add-vertices-for-painting-on-a-static-mesh-wall/365632)
**Author:** [@V.Bouchard](https://forums.unrealengine.com/u/V.Bouchard)\ **Replies:** 4\ **Last updated:** [October 3, 2018, 1:17pm UTC](https://forums.unrealengine.com/t/add-vertices-for-painting-on-a-static-mesh-wall/365632 "2018-10-03T13:17:32Z")
Hi guys! I know some other question was asked about that issue but I don’t find my exact answer. So the problem is when I try to paint on a static mesh (bsp wall converted) I only have 4 vertices points at 4 corners of … --- ## [Why I Get All The Actors In My Map Into My Inventory?](https://forums.unrealengine.com/t/why-i-get-all-the-actors-in-my-map-into-my-inventory/432837)
**Author:** [@56legion](https://forums.unrealengine.com/u/56legion)\ **Replies:** 4\ **Last updated:** [August 31, 2018, 2:20am UTC](https://forums.unrealengine.com/t/why-i-get-all-the-actors-in-my-map-into-my-inventory/432837 "2018-08-31T02:20:14Z")
Hi! As I Mention in the title. I tried to create an object actor and put it in the level for inventory system. I works great, but then when I duplicate the actor/pickup object and try to pick up the second one (The new … --- ## [how to spawn a new text block in widget](https://forums.unrealengine.com/t/how-to-spawn-a-new-text-block-in-widget/371031)
**Author:** [@anonymous\_user\_0a0e129a](https://forums.unrealengine.com/u/anonymous_user_0a0e129a)\ **Replies:** 5\ **Last updated:** [August 30, 2018, 7:58pm UTC](https://forums.unrealengine.com/t/how-to-spawn-a-new-text-block-in-widget/371031 "2018-08-30T19:58:43Z")
I am trying to achieve a text based list of names that keep adding to the list as the player inputs more names to it in the input field, shown in the middle of the screen. The names should appear below, as shown in the … --- ## [Can't add source file to C++ project](https://forums.unrealengine.com/t/cant-add-source-file-to-c-project/416269)
**Author:** [@anonymous\_user\_4745aa2c](https://forums.unrealengine.com/u/anonymous_user_4745aa2c)\ **Replies:** 3\ **Last updated:** [July 31, 2018, 12:03am UTC](https://forums.unrealengine.com/t/cant-add-source-file-to-c-project/416269 "2018-07-31T00:03:08Z")
I have a small C++ project. I added a simple source file to it, just some utility code, nothing specifically game-related, call it foo.cxx and foo.h. I put the source files in Unreal Projects/MyProject/Source/MyProject w… --- ## [Can't add interface to Blueprint](https://forums.unrealengine.com/t/cant-add-interface-to-blueprint/312729)
**Author:** [@anonymous\_user\_276962d7](https://forums.unrealengine.com/u/anonymous_user_276962d7)\ **Replies:** 8\ **Last updated:** [May 28, 2018, 12:33am UTC](https://forums.unrealengine.com/t/cant-add-interface-to-blueprint/312729 "2018-05-28T00:33:19Z")
After I had deleted my interface from a blueprintclass, I can’t add it again. interface is still visible in “Add interface window” but when click it, nothing happens. Does anyone have an idea how I can fix that? --- ## [How can i use the rock layer of the "Landscape Mountains" material ? , please help :)](https://forums.unrealengine.com/t/how-can-i-use-the-rock-layer-of-the-landscape-mountains-material-please-help/425544)
**Author:** [@sstefan4](https://forums.unrealengine.com/u/sstefan4)\ **Replies:** 0\ **Last updated:** [May 20, 2018, 5:13pm UTC](https://forums.unrealengine.com/t/how-can-i-use-the-rock-layer-of-the-landscape-mountains-material-please-help/425544 "2018-05-20T17:13:26Z")
any idea how? , and its possible to add another layer without screwing up everything? --- ## [Any way to add ALL the buttons in the widget to an array (not manually)](https://forums.unrealengine.com/t/any-way-to-add-all-the-buttons-in-the-widget-to-an-array-not-manually/423307)
**Author:** [@Generica](https://forums.unrealengine.com/u/Generica)\ **Replies:** 3\ **Last updated:** [April 25, 2018, 9:30pm UTC](https://forums.unrealengine.com/t/any-way-to-add-all-the-buttons-in-the-widget-to-an-array-not-manually/423307 "2018-04-25T21:30:48Z")
Hi. I have hundreds of buttons in my widget (menu) and I want them to change color on keyboard focus. By default the engine just puts dotted line around the button, and that is not pleasant for the eye. I have successful… --- ## [TArray::Num() and other methods crash the engine](https://forums.unrealengine.com/t/tarray-num-and-other-methods-crash-the-engine/422531)
**Author:** [@Arty-McLabin](https://forums.unrealengine.com/u/Arty-McLabin)\ **Replies:** 1\ **Last updated:** [April 13, 2018, 3:17pm UTC](https://forums.unrealengine.com/t/tarray-num-and-other-methods-crash-the-engine/422531 "2018-04-13T15:17:27Z")
I don’t have a clue why, but in one of my classes, calling TArray methods crash the engine. like it were a nullptr to TArray, rather than a regular member value. why does it even happen? i use TArrays for so long so far … --- ## [How does this add node work?](https://forums.unrealengine.com/t/how-does-this-add-node-work/411710)
**Author:** [@anonymous\_user\_61fe33b4](https://forums.unrealengine.com/u/anonymous_user_61fe33b4)\ **Replies:** 2\ **Last updated:** [February 7, 2018, 9:42am UTC](https://forums.unrealengine.com/t/how-does-this-add-node-work/411710 "2018-02-07T09:42:55Z")
I followed the tutorial to this step, but now I’m confused about how does the add node work. On this case the TexCoord node can still control the density of the material, but if you change the value of Constant2Vector… --- ## [Add collision to spline mesh component?](https://forums.unrealengine.com/t/add-collision-to-spline-mesh-component/372233)
**Author:** [@anonymous\_user\_2c124cb81](https://forums.unrealengine.com/u/anonymous_user_2c124cb81)\ **Replies:** 1\ **Last updated:** [November 28, 2017, 1:09pm UTC](https://forums.unrealengine.com/t/add-collision-to-spline-mesh-component/372233 "2017-11-28T13:09:14Z")
Hello, I’ve used the node add spline mesh component, and I’ve added a cylinder. So now I have a spline that has a mesh attached to it. How do I add collision to that cylinder mesh? Thanks --- ## [Epic Launcher keeps crashing](https://forums.unrealengine.com/t/epic-launcher-keeps-crashing/396047)
**Author:** [@GRWalton](https://forums.unrealengine.com/u/GRWalton)\ **Replies:** 1\ **Last updated:** [June 12, 2017, 10:35am UTC](https://forums.unrealengine.com/t/epic-launcher-keeps-crashing/396047 "2017-06-12T10:35:46Z")
The Launcher keeps crashing during Installation of projects - it seems to be mostly after clicking add to project, the download has occurred and i’m trying to install to a 4.15 project. I have had a couple of crashes du… --- ## [How do you add animations to third person character?](https://forums.unrealengine.com/t/how-do-you-add-animations-to-third-person-character/392975)
**Author:** [@anonymous\_user\_592738ba](https://forums.unrealengine.com/u/anonymous_user_592738ba)\ **Replies:** 4\ **Last updated:** [May 9, 2017, 3:43am UTC](https://forums.unrealengine.com/t/how-do-you-add-animations-to-third-person-character/392975 "2017-05-09T03:43:50Z")
I have a set of animations that I got from another source. I am able to view these animations in unreal engine, but I have no idea how to add them into a character. Characters such as the default ThirdPersonCharacter. --- ## [How to Add Actor to Blueprint From Editor?](https://forums.unrealengine.com/t/how-to-add-actor-to-blueprint-from-editor/337881)
**Author:** [@EminorReal](https://forums.unrealengine.com/u/EminorReal)\ **Replies:** 1\ **Last updated:** [October 27, 2016, 8:13pm UTC](https://forums.unrealengine.com/t/how-to-add-actor-to-blueprint-from-editor/337881 "2016-10-27T20:13:31Z")
Let’s say I have three cubes in the scene I select two of them and convert them to blueprint class Now I want to add the third cube to the blueprint, how would I go about doing that? If I select the newly create… --- ## [File Button to add level is missing](https://forums.unrealengine.com/t/file-button-to-add-level-is-missing/370675)
**Author:** [@anonymous\_user\_e88727cc](https://forums.unrealengine.com/u/anonymous_user_e88727cc)\ **Replies:** 0\ **Last updated:** [September 16, 2016, 3:09pm UTC](https://forums.unrealengine.com/t/file-button-to-add-level-is-missing/370675 "2016-09-16T15:09:37Z")
I have Unreal Engine 4, the newest. I work on the imac but if i want to add a level in first person the file button is missing How do i need to add a level?! --- ## [Adding 0 to integer subtracts one instead](https://forums.unrealengine.com/t/adding-0-to-integer-subtracts-one-instead/367596)
**Author:** [@anonymous\_user\_c8893ebb](https://forums.unrealengine.com/u/anonymous_user_c8893ebb)\ **Replies:** 5\ **Last updated:** [September 5, 2016, 1:30pm UTC](https://forums.unrealengine.com/t/adding-0-to-integer-subtracts-one-instead/367596 "2016-09-05T13:30:16Z")
I’m trying to do some simple integer manipulation in Blueprints, but for some reason, when adding 0 to an integer, it’s instead subtracting 1… --- ## [How can i add more material quality levels ?](https://forums.unrealengine.com/t/how-can-i-add-more-material-quality-levels/367806)
**Author:** [@MaxM67](https://forums.unrealengine.com/u/MaxM67)\ **Replies:** 0\ **Last updated:** [August 21, 2016, 10:45am UTC](https://forums.unrealengine.com/t/how-can-i-add-more-material-quality-levels/367806 "2016-08-21T10:45:20Z")
Hello, how can i add more material quality levels? there is only low,medium,high and default, but i want to create more so i can plug in my 4k textures in the ultra slot, the 2k texture in the very high slot and so on --- ## [how can i add 'actor component' in run time?](https://forums.unrealengine.com/t/how-can-i-add-actor-component-in-run-time/348938)
**Author:** [@anonymous\_user\_1111614c](https://forums.unrealengine.com/u/anonymous_user_1111614c)\ **Replies:** 1\ **Last updated:** [May 16, 2016, 10:59am UTC](https://forums.unrealengine.com/t/how-can-i-add-actor-component-in-run-time/348938 "2016-05-16T10:59:07Z")
i made ‘actor component’ type ‘FlyWithRocket’ ‘FlyWithWing’ and i met a beautiful rock in my adventure. now i want to make it fly with mighty rocket power!! (seriously?) how can add ‘flyWithRocket’ actor component to … --- ## [Can I make two Bool variables get into add](https://forums.unrealengine.com/t/can-i-make-two-bool-variables-get-into-add/357026)
**Author:** [@anonymous\_user\_f1de5201](https://forums.unrealengine.com/u/anonymous_user_f1de5201)\ **Replies:** 1\ **Last updated:** [May 10, 2016, 7:35pm UTC](https://forums.unrealengine.com/t/can-i-make-two-bool-variables-get-into-add/357026 "2016-05-10T19:35:21Z")
you probably don’t really want an “add” node, your more than likely looking for a “and” node. Which means, If bool1 and bool2 are true, then the result is true if either bool1 or bool2 is not true, then the result is f… --- ## [How to add a Struct Array to Scroll Box](https://forums.unrealengine.com/t/how-to-add-a-struct-array-to-scroll-box/346684)
**Author:** [@Overwatch04](https://forums.unrealengine.com/u/Overwatch04)\ **Replies:** 2\ **Last updated:** [February 7, 2016, 7:04pm UTC](https://forums.unrealengine.com/t/how-to-add-a-struct-array-to-scroll-box/346684 "2016-02-07T19:04:53Z")
I have a scroll box for my inventory and added buttons (InventoryButton2 widget) with an image, a text description, and a quantity on. This part works: The buttons are getting their info from an Inventory struct… [Next page](https://forums.unrealengine.com/tag/add/1835.md?match_all_tags=true&page=1&tags%5B%5D=add)