unreal engine c

Unreal Engine 4 C ++ creates a Zoom camera for the role (source code) In the game, observing the role's camera can narrow down and pull far is a common requirement, and UE4 is easy to implement. This article uses the TopDown template as an example to explain how to implement a Zoom camera step by step. After creating the C ++ project of the TopDown template, we will get three important classes. AXXXCharacte

Own toy engine, squeeze the time to bite the teeth intermittently wrote there are 2.5 of times, from rendering to animation to physics ... Engine inside all can write the module has written all over, throughout the process, read a lot of engine source code, also combined with their own understanding, made a lot of improvements, in which the rendering module is wi

Unreal Engine 4 C uclass Analysis of error-prone constructors Generated_body Generated_uclass_body You typically see two macros in any class of Unreal Engine 4: Generated_body () Generated_uclass_body () This is sometimes said in a tutorial:This statement is not rigo

Unreal Engine 4 RenderTarget making live camera effectFirst on the effect:Live camera I do not know how to translate, anyway, the meaning is to render a camera image to a 2D plane.The following are the specific implementation methods:1. Create a scene Capture 2D objectDrag the object to the appropriate place.2. Create a Rendtertarget objectRender target, Material map3. Setting the properties of an Scenecap

Open Yourenginefolder\engine\config\baseengine.iniWill1 local= (Type=filesystem, readonly=false, clean=false, flush=false, Purgetransient=true, deleteunused=true, unusedfileage=, folderstoclean=-1, Path="%engineversionagnosticuserdir%deriveddatacache")Replaced by1 local= (Type=filesystem, readonly=false, clean=false, flush=false, Purgetransient=true, deleteunused=true, unusedfileage=, folderstoclean=-1, Path="%gamedir%deriveddatacache")Solve the probl

In the game development often uses the ray collision, for instance the laser shot, needs to know clearly its centralized position, then releases the attack effect at this point.Unrea Engine 4 To do Ray collision is also very simple, the main function of the implementation is the world Linetracesingle this method, the following gives the test code. The code I tested in Thirdpersontemplate. Detects the actor in front of the character with or without a b

In the latest version of Unreal Engine 4.4, the Physicsconstraint in Blueprint is Bug-Blueprint cannot edit constraint's two actor components, and the only way to do this is through C + + code. There are many such questions, fortunately, the source code to you, and how to change with their own.I want to implement the role swing function in the Thirdperson template, just like the Persian monkeys.First, add a

Unreal engine 4 C ++ is used to draw functions for debugging. UE4 provides many predefined debugging and rendering functions, which are convenient during debugging. You can draw points, lines, circles, balls, arrows, cubes, capsules, and even splines, strings, and grids in a scenario. What's better is that you can control the line thickness, Which is intuitive during debugging. To use these functions, you o

Tags: blog HTTP ar SP Div on 2014 art log Taking the official Third Person template as an example, the uspringarmcomponent in the character blueprint implements most of the camera and scene collision and interaction functions. To implement camera latency, you only need to modify the attributes in the lag column. The first one controls the latency when the camera moves, the second is the latency when the camera rotates, and the other two are the latency speed. The smaller the latency, the mo

Unreal Engine 4 C + + Platformergame custom role Controller source code analysisThe official store has a platformergame the entire free game, is a scroll class parkour game. The role controller of the whole project is very interesting, can run, jump, glide, cool. Here to analyze how it is implemented in detail.Ucharactermovementcomponent This class implements most of the functions of the role controller, Pl

, uint8 depthpriority = 0);The first one is drawn according to the box's size, and the second one can be drawn with a certain amount of rotation.5. Draw a SphereENGINE_API void Drawdebugsphere (const uworld* inworld, Fvector const Center, float Radius, int32 segments, Fcolor con st Color, bool Bpersistentlines = False, float lifetime=-1.f, uint8 depthpriority = 0);The segments controls the fragmentation of the sphere, the larger the finer the more.6. There are many other less commonly used, can

VR Common Operation Interface UE4 provides a set of HMD functions in blueprint, as shown in:In addition, for gear VR, you can open the Oculus Library plugin, access the function:Common functions implement the Gear VR helmet has a touchpad on the right, and is tested to respond to its actions via the touch event in the blueprint, for example:In addition, the current VR is commonly used in the way the viewpoint interaction, need to use line of sight detection, for example:Unreal 4

The default, open UE4 Editor, the video card will render the scene at full speed, on my machine, is 120FPS. The whole machine began to roar and the resources were too much occupied. In fact, there is absolutely no need for this, the frame rate of about 60 is enough.How to modify it, try a lot of ways, the most effective is to modify the Baseengine.ini configuration file, modify the following line:Smoothedframeraterange= (lowerbound= (type= "erangeboundtypes::inclusive", value=5), upperbound= (Ty

to the right-click, add Event-in the blueprint. Custom events can specify input parameters, and can also specify whether the event can be synchronized on the client and server side.Replication has four options, which are not replicated by default, can be selected for multiplexing, run on the server, run on the client to which it belongs, and can be selected if the event needs to be routed over the network.Enter a value column to add parameters, the same type as the variable type.Let's do an exa

Sometimes when we create a scene, a particular actor we want to give it a specific icon for easy observation. such as this:It is also very simple to implement, and you need to write C + + code:We create an actor called Amyactor, which contains a sprite (sprite), which is responsible for displaying the custom icon: the code is as follows#pragma once#include "gameframework/actor.h" #include "components/billboardcomponent.h" #include " Myactor.generated.h "/** * */uclass () class Nantopdown_api am

(radiantstaticmeshwebviewactor)After clicking on the simulate , the simulation results are as follows:Drag into the game scene, position it, and then run:Eighth Step:Let's be free to explore something in this blueprint :First look at this component and see the details:where refresh rate is the update frequency (if the value is 1, the video in the screen, the page effect will be one second frame). URL: Web page. Size: The dimensions of the Web page (resolution, etc.). Mouse Effects:Set the size

binding.protected:virtual void Setupplayerinputcomponent (class uinputcomponent* inputcomponent) override;The following are the specific implementations of each method:void Asqxgamecharacter::setupplayerinputcomponent (class uinputcomponent* inputcomponent) {check (inputcomponent); Nputcomponent->bindaction ("ZoomIn", ie_pressed, this, asqxgamecharacter::zoomin);inputcomponent-> Bindaction ("Zoomout", ie_pressed, this, asqxgamecharacter::zoomout);The Setupplayerinputcomponent method binds two a

News Game author Daniel Kayser Traditionally, Tim Sweeney, founder and CEO of Epic Games, first took the stage at the opening meeting of the "State of Unreal" and burst out a number of news and announcements at the conference, which kicked off the 2017 Game Developers Conference. The games, movies and even the automotive industry leaders took part in the meeting, co-chaired by Sweeney and partner Director Kim Libreri (Chief technology officer of Epic)

This problem is because the machine is missing a compiler, just configure the location of the compiler itself.The first step: you create a new Bin folder under any folder, and a AMD64 folderStep Two: Open the \vc\tools\msvc\14.11.25503\bin\hostx64\x64 directory of your own VS installation address, copy the contents into the Bin folder, and copy the files into the AMD64 file.Step three: Open the RegistryHKEY_LOCAL_MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\VISUALSTUDIO\SXS\VC7 change the key value of

Document directory Similar to Java, UScript also has its own VM (VirtualMachine, virtual machine). Let's take a look at the following points to understand: Unreal Virtual Machine UnrealScript implementation UnrealScript binary compatibility Technical Considerations Similar to Java, UScript also has its own VM (VirtualMachine, virtual machine). Let's take a look at some points that need to be understood: Convert from UDNUnreal Virtual Machine Th