OmniNodes — Documentation

Overview

OmniNodes adds 317 Blueprint nodes and a few helper classes that cover the everyday gaps of Blueprint projects: file and folder access, string and number utilities, geometry math, image and DDS loading, Ogg sound playback from disk, runtime key rebinding, UMG helpers, level streaming instances, ragdoll and trace helpers, process launching and system queries. Everything is C++ exposed to Blueprint, so the nodes are also callable from your own C++ code.

Files and config — list files (recursive, filtered), load and save text, save-game slot listing, project folder paths, MD5 file hashes and typed reads/writes of the game ini.
Strings and math — explode by multi-character separators, clipboard, number formatting, plane/line/sphere/box math, multiples, speed unit conversion and UMG anchor conversion.
Arrays and random — wildcard Sort (structs and objects by property) and Valid Index, min/max with index, seeded random numbers including a Mersenne Twister.
Textures and capture — load PNG, JPG, BMP, ICO, EXR, ICNS and DDS files into textures, read and save pixels, project points into scene captures and save captures to image files.
Sound — play .ogg files from disk at a location or attached to a component, sound class volume.
Input — read, rebind and remove action/axis mappings at runtime, simulate keys and the mouse wheel.
UMG and viewport — find, count and remove widgets by class, widget parent/children queries, insert into panels, viewport hit tests and deprojection, mouse position, full-screen mode and frame-rate cap.
Actors and characters — ragdoll enter/leave, socket traces, aim offsets, clone static mesh actors, convert actors to instanced static meshes, rendered-actor queries, relative transforms.
Levels and system — add/remove streaming level instances, launch processes and read their output, GPU and display information, OS time, platform flags.
Helper classes — a process pipe object, a player controller with subtitle and public IP events, and a key/value lookup component.

Requirements

Requirement	Details
Unreal Engine	4.27 and 5.8 (verified clean on both)
Modules	`OmniNodes` (Runtime)
Dependencies	None. No other plugins are required; only engine modules are used.
Language	Blueprints and C++
Platforms	Win64, Mac and Linux are enabled by the plugin. Win64 is built and verified by Alpha XP; Mac and Linux are supported by the code, not verified by Alpha XP.

Installation

Close the editor. Copy the OmniNodes folder into your project's Plugins folder (create it if needed), or install the plugin to the engine from the launcher.
Open the project. For C++ projects, rebuild when the editor asks you to compile the plugin.
Open Edit > Plugins, find OmniNodes in the Blueprints category, enable it and restart the editor.
C++ only: add "OmniNodes" to PublicDependencyModuleNames (or PrivateDependencyModuleNames) in your module's .Build.cs.

Verifying the installRight-click in any Blueprint graph and type Get Command Line. If the node appears under OmniNodes › System, the plugin is loaded.

Quick start

Blueprint: read every text file in the Saved folder

Add Paths Saved Dir (category OmniNodes › Paths). It returns the absolute Saved folder.
Add File IO Get Files, connect the folder to Root Folder Full Path and type txt into Ext.
Loop over the returned Files array, append each file name to the folder and call Load String from File.
Optional: use Load String Array from File instead to get the file as an array of lines.

Blueprint: show a clock

Feed elapsed seconds into Seconds to Hours Minutes Seconds with Trim Zeroes enabled.
Bind the returned string to a UMG text block. 330 seconds are shown as +05:30 (the engine timespan format includes a leading sign).

C++

All nodes are static members of UOmniNodesFunctionLibrary or UOmniNodesMathLibrary:

#include "OmniNodesFunctionLibrary.h"
#include "OmniNodesMathLibrary.h"

void UMyComponent::DumpSavedTextFiles()
{
    const FString Folder = UOmniNodesFunctionLibrary::Paths__SavedDir();

    TArray<FString> Files;
    if (UOmniNodesFunctionLibrary::FileIO_GetFiles(Files, Folder, TEXT("txt")))
    {
        for (const FString& File : Files)
        {
            FString Text;
            if (UOmniNodesFunctionLibrary::LoadStringFromFile(Text, Folder / File))
            {
                TArray<FString> Lines;
                UOmniNodesFunctionLibrary::String__ExplodeString(Lines, Text, TEXT("\n"));
                UE_LOG(LogTemp, Log, TEXT("%s: %d lines"), *File, Lines.Num());
            }
        }
    }

    const FString Clock = UOmniNodesFunctionLibrary::SecondsToHoursMinutesSeconds(330.f, true); // "+05:30"
    const FVector Snapped = UOmniNodesMathLibrary::GridSnap(FVector(123.f, 47.f, 9.f), 50.f); // (100,50,0)
}

Classes & types

Besides the two static function libraries, OmniNodes provides these classes and types. In the editor, class names are shown without their prefix and with spaces (for example Omni Nodes Process Pipe).

Node	Type	Description
UOmniNodesFunctionLibrary	Class	Blueprint function library holding most nodes (all static except the two Transform nodes).
UOmniNodesMathLibrary	Class	Blueprint function library with the vector, intersection, integer, anchor, console-variable and physics math nodes.
UOmniNodesProcessPipe	Class	Blueprintable object. Create it with Construct Object from Class and pass it to Create Proc to capture the process output; read it with Read from Pipe.
AOmniNodesPlayerController	Class	Player controller with Play Speech Sound / On Subtitles Queued and the public IP request. Use it (or a Blueprint child) as the Player Controller Class of your Game Mode.
UOmniNodesTMapComponent	Class	Actor component (Add Component › OmniNodes) with seven key/value tables: String to Actor, String, Integer, Vector, Rotator; Integer to Vector and Float.
AOmniNodesISM	Class	Actor with one Instanced Static Mesh component (`Mesh`), created by ISM Convert to ISMActors.
FOmniNodesInput	Class	Struct: action name, key, key display string and Shift/Ctrl/Alt/Cmd flags of an action mapping.
FOmniNodesInputAxis	Class	Struct: axis name, key, key display string and scale of an axis mapping.
FOmniNodesLevelStreamInstanceInfo	Class	Struct: package name, package to load, location, rotation, load/visible/blocking flags and LOD index of a streaming level instance.
FOmniNodesSubtitleCue	Class	Struct: subtitle text and time, passed to On Subtitles Queued.
EOmniNodesImageFormats	Class	Enum used by the image loaders: JPG, PNG, BMP, ICO, EXR, ICNS.
EOmniNodesFullScreenMode	Class	Enum used by the full-screen nodes: Regular Full Screen, Windowed Full Screen High Quality, Windowed Full Screen (Default).
EOmniNodesSpeedUnit	Class	Enum used by Convert Physics Linear Velocity: cm/s, ft/s, m/s, m/min, km/s, km/min, km/h, mph, knot, Mach, speed of light, yd/s.

Files, paths & config

35 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › File IO

Node	Type	Description
UTCTo Local	Pure	Converts a UTC date/time to local time using the machine's current UTC offset.
File IO Get Files	Pure	File names in a folder, optionally filtered by extension.
File IO Get Files in Root and All Sub Folders	Pure	Full paths of all files in a folder and its sub-folders, optionally filtered by extension.
Save Game Object Get All Save Slot File Names	Pure	File names of all save-game slots in Saved/SaveGames.
Save Game Object Get Most Recent Save Slot File Name	Pure	File name of the most recently written save-game slot.
Load String Array from File	Pure	Loads a text file into an array of lines, optionally skipping empty lines.
Load String from File	Callable	Loads a whole text file into one string (Unicode supported).
File IO Save String Text to File	Callable	Saves a string to a file in a folder (created if needed), with overwrite and append options.
File IO Save String Array to File	Callable	Saves an array of strings as lines of a file, with overwrite and append options.

OmniNodes › Paths

Node	Type	Description
Paths Win 64Dir Binary Location	Pure	Absolute folder of the running executable.
Paths Windows No Editor Dir	Pure	Absolute root folder of the packaged game.
Paths Game Root Directory	Pure	Absolute project folder.
Paths Saved Dir	Pure	Absolute Saved folder of the project.
Paths Config Dir	Pure	Absolute project Config folder.
Paths Screen Shots Dir	Pure	Absolute screenshot folder.
Paths Logs Dir	Pure	Absolute log folder.

OmniNodes › Screenshots

Node	Type	Description
Screen Shots Rename Move Most Recent	Callable	Moves the most recent screenshot (regular or high-resolution) to a folder under a new name (.png).

OmniNodes › MD5

Node	Type	Description
Create MD5Hash	Callable	Hashes a file with MD5 and writes the hash to another file. Large files can stall the game thread.
Compare MD5Hash	Callable	Compares two hash files written by Create MD5 Hash; true if they match.

OmniNodes › Custom Config Vars

Node	Type	Description
Get Custom Config Var Bool	Pure	Reads a bool from a section/key of the game ini. Is Valid is false if the key is missing.
Get Custom Config Var Int	Pure	Reads an integer from the game ini.
Get Custom Config Var Float	Pure	Reads a float from the game ini.
Get Custom Config Var Vector	Pure	Reads a vector from the game ini.
Get Custom Config Var Rotator	Pure	Reads a rotator from the game ini.
Get Custom Config Var Color	Pure	Reads a colour from the game ini.
Get Custom Config Var String	Pure	Reads a string from the game ini.
Get Custom Config Var Vector 2D	Pure	Reads a 2D vector from the game ini.
Set Custom Config Var Vector 2D	Callable	Writes a 2D vector to the game ini.
Set Custom Config Var Bool	Callable	Writes a bool to a section/key of the game ini.
Set Custom Config Var Int	Callable	Writes an integer to the game ini.
Set Custom Config Var Float	Callable	Writes a float to the game ini.
Set Custom Config Var Vector	Callable	Writes a vector to the game ini.
Set Custom Config Var Rotator	Callable	Writes a rotator to the game ini.
Set Custom Config Var Color	Callable	Writes a colour to the game ini.
Set Custom Config Var String	Callable	Writes a string to the game ini.

Strings & conversion

23 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › String

Node	Type	Description
Count Occurrances Of Sub String	Pure	Number of occurrences of a substring (case sensitivity selectable).
Append Inline	Callable	Appends to a string variable in place (optionally with a newline) and returns the result.
Is Alpha Numeric	Pure	True if the string contains only letters and digits.
Get String from OSClipboard	Pure	Reads text from the operating system clipboard.
Save String to OSClipboard	Callable	Copies text to the operating system clipboard.
Has Substring	Pure	True if a string contains a substring (case and search direction selectable).
String Combine Strings	Pure	Combines two strings with an optional separator and labels.
String Combine Strings Multi	Pure	Joins strings with a space; add pins for more inputs.
Accessor Get Name as String	Pure	Object name as a string.
Explode String	Pure	Splits a string by a (multi-character) separator, with optional limit and trimming.
Append Multiple	Pure	Concatenates strings; add pins for more inputs.

OmniNodes › Utilities › String

Node	Type	Description
IsEmpty	Pure	True if the string is empty.

OmniNodes › Conversion

Node	Type	Description
Text Is Numeric	Pure	True if the text is a number.
Text to Float	Pure	Converts text to a float, removing thousands separators (comma or dot style).
Text to Int	Pure	Converts text to an integer, removing thousands separators (comma or dot style).
String to Vector	Pure	Parses a vector from its string form; Is Valid reports success.
String to Rotator	Pure	Parses a rotator from its string form; Is Valid reports success.
String to Color	Pure	Parses a linear colour from its string form; Is Valid reports success.
Color to String	Pure	Converts a linear colour to a string.
Conversions Vector to Rotator	Pure	Rotation that points along a vector.
Conversions Rotator to Vector	Pure	Unit direction vector of a rotator.
Character Get Controller Rotation	Pure	Control rotation of a character's controller.
String Conversion Get Float as String with Precision	Pure	Formats a float with a fixed number of decimals, optionally with a leading zero.

Math

47 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Math

Node	Type	Description
Vector 2DInterp To	Pure	Smoothly interpolates a 2D vector toward a target.
Vector 2DInterp to Constant	Pure	Moves a 2D vector toward a target at a constant rate.
Map Range Clamped	Pure	Maps a value from one range to another, clamped to the output range.
Conversion Float to Rounded Integer	Pure	Rounds a float to the nearest integer (1.4 becomes 1, 1.6 becomes 2).

OmniNodes › Math › Float

Node	Type	Description
Float Plus Equals	Callable	Adds to a float variable in place (+=).
Float Minus Equals	Callable	Subtracts from a float variable in place (-=).
Negate Float	Pure	Reverses the sign of a float.
Is Even Number	Pure	True if the number is even.

OmniNodes › Math › Integer

Node	Type	Description
Int Plus Equals	Callable	Adds to an integer variable in place (+=).
Int Minus Equals	Callable	Subtracts from an integer variable in place (-=).
Negate Int	Pure	Reverses the sign of an integer.
Round to Lower Multiple	Pure	Rounds an integer down to a multiple (optionally skipping itself).
Round to Upper Multiple	Pure	Rounds an integer up to a multiple (optionally skipping itself).
Round to Nearest Multiple	Pure	Rounds an integer to the nearest multiple.
Is Power Of Two	Pure	True if the integer is a power of two.
Is Multiple Of	Pure	True if the integer is a multiple of a number.

OmniNodes › Math › Vector

Node	Type	Description
Set Vector Length	Pure	Scales a vector to a given length.
Vector Radians to Degrees	Pure	Converts each component of a vector from radians to degrees.
Vector Degrees to Radians	Pure	Converts each component of a vector from degrees to radians.
Closest Point on Sphere to Line	Pure	Closest point on a sphere to a line.
Closest Point on Line Seqment	Pure	Closest point on a line segment to a point.
Signed Distance Plane Point	Pure	Signed shortest distance from a point to a plane (normal and point).
Project Point on Line	Pure	Projects a point onto an infinite line.
Closest Points on Two Lines	Pure	Closest points between two non-parallel infinite lines; false if parallel.
Point on Which Side Of Line Segment	Pure	0 if the point is on the segment, 1 if beyond the first end, 2 if beyond the second end.
Grid Snap	Pure	Snaps a vector to the nearest grid multiple.
Convert Physics Linear Velocity	Pure	Converts a velocity (cm/s) to another speed unit (m/s, km/h, mph, knots, Mach and more).

OmniNodes › Math › Vector › Intersection

Node	Type	Description
Is Point Inside Box	Pure	True if a point is inside a box (origin and extent).
Is Line Inside Sphere	Pure	True if a line (start, direction, length) intersects a sphere.
Line Extent Box Intersection	Pure	Swept box versus box test with hit location, normal and time.
Sphere Box Intersection	Pure	True if a sphere and a box intersect.
Closest Points Of Line Segments	Pure	Closest points between two line segments.
Line to Line Intersection	Pure	Intersection point of two coplanar infinite lines; false if they do not intersect.
Are Line Segments Crossing	Pure	True if two line segments cross and are not parallel.

OmniNodes › Math › Vector2D

Node	Type	Description
Equal (vector2D)	Pure	True if two 2D vectors are equal within a tolerance.
Not Equal (vector2D)	Pure	True if two 2D vectors differ by more than a tolerance.
Negate Vector 2D	Pure	Reverses the sign of a 2D vector.

OmniNodes › Math › Plane

Node	Type	Description
Create Plane	Pure	Plane through a point with a normal.
Point Distance to Plane	Pure	Signed distance from a point to a plane (>0 in front, <0 behind).
Is Point on Plane	Pure	True if a point lies on a plane within a tolerance.

OmniNodes › Math › Anchor

Node	Type	Description
Convert Anchor to Anchor	Pure	Converts UMG layout offsets from one anchor setup to another for the current viewport size.

OmniNodes › Vector

Node	Type	Description
Get Vector Relative Location	Pure	Location of a point relative to a parent location and rotation.

OmniNodes › Rotator

Node	Type	Description
Get Rotator Relative Rotation	Pure	Rotation of a child rotation relative to a parent rotation.

OmniNodes › Transform

Node	Type	Description
Transform Vector to Actor Space Angle	Pure	Rotation of a world-space vector expressed in an actor's local space. Non-static: the node needs an `UOmniNodesFunctionLibrary` target, so it is mainly useful from C++.
Transform Vector to Actor Space	Pure	World-space vector expressed in an actor's local space. Non-static: the node needs an `UOmniNodesFunctionLibrary` target, so it is mainly useful from C++.

OmniNodes › Console

Node	Type	Description
Get Console Variable Float	Pure	Value of a float console variable (0 if not found).
Get Console Variable Int	Pure	Value of an integer console variable (0 if not found).

Arrays & random numbers

22 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Array

Node	Type	Description
Sort Int Array	Callable	Sorts an integer array ascending in place.
Sort Float Array	Callable	Sorts a float array ascending in place.
Max Of Float Array	Pure	Largest value of a float array and its index (-1 when empty).
Max Of Int Array	Pure	Largest value of an integer array and its index (-1 when empty).
Min Of Float Array	Pure	Smallest value of a float array and its index (-1 when empty).
Min Of Int Array	Pure	Smallest value of an integer array and its index (-1 when empty).

OmniNodes › Utilities › Array

Node	Type	Description
Valid Index	Pure	Wildcard: true if an index is valid for any array.
Sort	Callable	Wildcard: sorts any array of numbers, bools, names, strings or text; arrays of structs or objects are sorted by a named property.

OmniNodes › Random

Node	Type	Description
Construct Rand	Callable	Seeds the random engines from a random device (or the current time if no entropy is available).
Seed Rand	Callable	Seeds the random engines with a value.
Seed Rand with Time	Callable	Seeds the random engines with the current time.
Seed Rand with Entropy	Callable	Seeds the random engines from the random device.
Rand Bool Bernoulli	Pure	Random bool with a bias (Bernoulli distribution).
Rand Int Uni Dis	Pure	Random integer 0 or 1.
Rand Int MINMAX Uni Dis	Pure	Random integer in [Min, Max].
Rand Float Uni Dis	Pure	Random float in [0, 1).
Rand Float MINMAX Uni Dis	Pure	Random float in [Min, Max).
Rand Bool Bernoulli MT	Pure	Random bool with a bias, using a Mersenne Twister.
Rand Int Uni Dis MT	Pure	Random integer 0 or 1, using a Mersenne Twister.
Rand Int MINMAX Uni Dis MT	Pure	Random integer in [Min, Max], using a Mersenne Twister.
Rand Float Uni Dis MT	Pure	Random float in [0, 1), using a Mersenne Twister.
Rand Float MINMAX Uni Dis MT	Pure	Random float in [Min, Max), using a Mersenne Twister.

Textures, capture & materials

14 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Load Texture From File

Node	Type	Description
Load Texture 2D from DDSFile	Callable	Creates a texture from a .dds file (DXT1/3/5, BC4/BC5 or uncompressed 32-bit BGRA, 2D only).
Load Texture 2D from File	Pure	Creates a texture from a JPG, PNG, BMP, ICO, EXR or ICNS file and returns its size.
Load Texture 2D from File Pixels	Pure	Like Load Texture 2D from File, and also returns the pixel colours.
Get Pixel from Array	Pure	Colour at x/y in a pixel array (index = y * Image Height + x).
Save Pixels	Callable	Saves a pixel array of a given width and height as PNG or BMP.
Get Pixel from T2D	Callable	Reads one pixel of a texture whose compression is VectorDisplacementmap (switches the texture to non-sRGB).
Get Pixels Array from T2D	Callable	Reads all pixels of a texture whose compression is VectorDisplacementmap (switches the texture to non-sRGB).
Load Texture 2D from File by Extension	Callable	Creates a texture from an image file, choosing the decoder from the file extension.

OmniNodes › SceneCapture

Node	Type	Description
Capture Component 2D Project	Pure	Projects a world location to pixel coordinates in a scene capture component's render target.
Capture 2D Project	Pure	Projects a world location to pixel coordinates in a Scene Capture 2D actor's render target.
Capture Component 2D Save Image	Callable	Saves a scene capture component's B8G8R8A8 render target to an image file; pixels matching the clear colour become transparent.
Capture 2D Save Image	Callable	Saves a Scene Capture 2D actor's B8G8R8A8 render target to an image file; pixels matching the clear colour become transparent.

OmniNodes › Material

Node	Type	Description
Does Material Have Parameter	Pure	True if a material (or the parent of a material instance) has a scalar, vector or texture parameter with the name.

OmniNodes › Post Process

Node	Type	Description
Set Bloom Intensity	Callable	Overrides the bloom intensity of a post process volume.

Sound & subtitles

7 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Sound

Node	Type	Description
Sound Class Set Volume	Callable	Sets the volume of a Sound Class immediately.
Sound Class Get Volume	Pure	Current volume of a Sound Class (-1 if none supplied).
Play Sound Attached from File	Callable	Loads an .ogg file from disk and plays it attached to a component (fire and forget).
Play Sound at Location from File	Callable	Loads an .ogg file from disk and plays it at a world location (fire and forget).
Get Sound Wave from File	Callable	Creates a sound wave from an .ogg (Ogg Vorbis) file on disk.

OmniNodes › Subtitles

Node	Type	Description
Play Speech Sound	Callable	Target: `AOmniNodesPlayerController`. Plays a 2D sound and forwards its subtitles to On Subtitles Queued; returns the audio component.
On Subtitles Queued	Event	Target: `AOmniNodesPlayerController`. Implement to receive the subtitle cues and cue duration of a sound played with Play Speech Sound.

Input & key rebinding

13 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Input

Node	Type	Description
Simulate Mouse Wheel	Callable	Sends a simulated mouse-wheel delta to Slate.
Simulate Key Press	Callable	Simulates a key or mouse-button event on a player controller and in Slate.
Viewport Set Mouse Position	Callable	Moves the mouse cursor to a position in the player's viewport.
Flush Pressed Keys	Callable	Clears the pressed-key state of a player controller.

OmniNodes › Key Rebinding

Node	Type	Description
Get All Axis and Action Mappings for Key	Pure	All action and axis mappings (Input Settings) that use a key.
Get Input Axis from Key Event	Pure	Builds an `FOmniNodesInputAxis` from a key event (scale 1).
Get All Axis Key Bindings	Pure	All axis mappings from the Input Settings.
Remove Axis Key Bind	Callable	Removes every axis mapping that uses the key, saves the input config and rebuilds player key maps.
Re Bind Axis Key	Callable	Replaces the key/scale of an existing axis mapping and saves it. Returns false if the original mapping was not found.
Get Input Action from Key Event	Pure	Builds an `FOmniNodesInput` (key plus Shift/Ctrl/Alt/Cmd) from a key event.
Get All Action Key Bindings	Pure	All action mappings from the Input Settings.
Re Bind Action Key	Callable	Replaces the key and modifiers of an existing action mapping and saves it. Returns false if not found.
Remove Action Key Bind	Callable	Removes every action mapping that uses the key, saves the input config and rebuilds player key maps.

UMG, viewport & graphics

26 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › UMG

Node	Type	Description
Get Head Mounted Display Device Type	Pure	Name of the connected XR system, or None.
Get All Widgets Of Class	Callable	All user widgets of a class in the world, optionally only those added to the viewport.
Remove All Widgets Of Class	Callable	Removes all user widgets of a class from the viewport.
Is Widget Of Class in Viewport	Pure	True if a user widget of the class is in the viewport.
Is Key Event for Key	Pure	Tests whether a key event is for a key and returns the Ctrl/Shift/Alt/Cmd states.
Get First Widget Of Class	Callable	First user widget of a class, optionally only top-level ones.
Widget Is Child Of	Callable	True if a widget is a descendant of another widget.
Widget Get Parent Of Class	Callable	Nearest parent user widget of a class.
Widget Get Children Of Class	Callable	Child user widgets of a class, immediate or all descendants.
Get Widget from Name	Callable	Widget inside a user widget by name.

OmniNodes › Widget › Panel

Node	Type	Description
Insert Child At	Callable	Inserts a widget into a panel at an index (the child's Construct event fires again).

OmniNodes › Game › Viewport

Node	Type	Description
Get Viewport Position	Callable	Converts a screen position (for example from a pointer event) to the viewport's local coordinates.
Get Viewport Position Hit Result by Channel	Callable	Trace under a viewport position on a collision channel; returns the hit.
Viewport Position Deproject	Callable	World origin and direction under a viewport position.
Horizontal FOV	Pure	Horizontal field of view from a vertical field of view and aspect ratio.
Vertical FOV	Pure	Vertical field of view from a horizontal field of view and aspect ratio.

OmniNodes › Game Window

Node	Type	Description
Viewport Get Mouse Position	Pure	Mouse cursor position in the player's viewport.
Viewport Get Center Of Viewport	Pure	Centre coordinates of the player's viewport.
Client Window Game Window Is Fore Ground in OS	Pure	True if the game window is the foreground window of the operating system.
Flash Game on Task Bar	Callable	Flashes the game window on the Windows task bar (continuously or a number of times). No effect on other platforms.
Rendering Freeze Game Rendering	Callable	Stops game rendering (game logic keeps running).
Rendering Un Freeze Game Rendering	Callable	Resumes game rendering after Freeze Game Rendering.

OmniNodes › Graphics Settings

Node	Type	Description
Graphics Settings Set Frame Rate Cap	Callable	Enables frame-rate smoothing with a maximum frame rate.
Graphics Settings Set Frame Rate to be Unbound	Callable	Disables frame-rate smoothing (frame rate limited only by hardware).
Graphics Settings Full Screen Get	Pure	Current full-screen mode (r.FullScreenMode).
Graphics Settings Full Screen Set	Callable	Sets the full-screen mode (r.FullScreenMode).

Actors, components & characters

49 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › Actor

Node	Type	Description
Get Time in Play	Pure	Seconds since the actor was created (-1 for no actor).
Spawn Actor Into Level	Callable	Spawns an actor of a class into a specific loaded streaming level (by package name).
Get Static Mesh Vertex Locations	Pure	World-space vertex positions of a static mesh component's complex collision mesh.
Add to Actor Rotation	Callable	Adds a rotation to an actor in its local space.
Clone Static Mesh Actor	Callable	Spawns a copy of a Static Mesh Actor (mesh, materials, physics) with optional location and rotation offsets.
Actor Teleport to Actor	Pure	Moves an actor to another actor's location and rotation.
Visibility Get Rendered Actors	Callable	Actors rendered within the last N seconds.
Visibility Get Not Rendered Actors	Callable	Actors not rendered within the last N seconds.
Data Get Character Bone Locations	Callable	World locations of every bone of a character's mesh.
Get Creation Time	Pure	World time at which the actor was created.
Get Time Alive	Pure	Seconds the actor has existed.
PrestreamTextures (Actor)	Callable	Forces all mips of the actor's mesh textures to stream in for a number of seconds.
Get Actor Relative Location	Pure	Location of a child actor relative to a parent actor's transform.
Get Actor Relative Rotation	Pure	Rotation of a child actor relative to a parent actor.

OmniNodes › Actor › Get Immediate Attached Actors

Node	Type	Description
Actor Get Attached Actors	Pure	Actors directly attached to a parent actor.

OmniNodes › Components

Node	Type	Description
PrestreamTextures (Component)	Callable	Forces all mips of a mesh component's textures to stream in (0 seconds = 30 days).
Get Component Relative Location	Pure	Location of a child component relative to a parent component's transform.
Get Component Relative Rotation	Pure	Rotation of a child component relative to a parent component.

OmniNodes › Components › SkinnedMesh

Node	Type	Description
Get All Bone Names Below Bone	Callable	Names of all bones below a bone in a skeletal mesh component; returns the count.

OmniNodes › Character

Node	Type	Description
Character Movement Set Max Move Speed	Callable	Sets the character movement component's maximum walk speed.
Accessor Get Player Controller	Pure	Player controller possessing a character.
Accessor Get Character Skeletal Mesh	Callable	Mesh component of a character.

OmniNodes › Aim Offset

Node	Type	Description
Animation Get Aim Offsets	Callable	Aim-offset pitch and yaw from the character's control rotation, in actor space (for a -90..90 blend space).
Animation Get Aim Offsets from Rotation	Callable	Aim-offset pitch and yaw for a given rotation, in the character's actor space.

OmniNodes › 3d Lines

Node	Type	Description
Draw Thick 3DLine from Character Socket	Callable	Draws a thick debug line from a socket of the character's mesh to a point.
Draw Thick 3DLine from Socket	Callable	Draws a thick debug line from a skeletal mesh socket to a point.
Draw Thick 3DLine Between Actors	Callable	Draws a thick debug line between two actors.

OmniNodes › Traces

Node	Type	Description
Trace Data Get Trace Data from Character Socket	Callable	Start/end points for a trace from a character mesh socket along a rotation and length (does not trace); optional debug draw.
Trace Data Get Trace Data from Skeletal Mesh Socket	Callable	Start/end points for a trace from a skeletal mesh socket along a rotation and length (does not trace); optional debug draw.
Traces Character Mesh Trace Closest Bone	Callable	Line trace that, on hitting a character, traces its mesh and returns the impact data and the closest bone.
Traces Character Mesh Trace Closest Socket	Callable	Line trace that, on hitting a character, traces its mesh and returns the impact data and the closest socket.

OmniNodes › Instanced Static Mesh

Node	Type	Description
ISM Get All ISMActors	Pure	All `AOmniNodesISM` actors in the world.
ISM Convert to ISMActors	Callable	Converts all actors of a class into one instanced static mesh actor per static mesh asset, optionally destroying the originals.

OmniNodes › Physics

Node	Type	Description
Physics Update Angular Damping	Callable	Changes the angular damping of a simulating component's body at runtime.
Get Distance to Collision	Pure	Distance from a point to a component's collision and the closest point on it (-1 if the component has no collision).
Get Distance Between Component Surfaces	Pure	Approximate distance between the collision surfaces of two components and the two surface points.
Physics Enter Rag Doll	Callable	Puts a character's mesh into ragdoll (requires a physics asset).
Physics Leave Rag Doll	Callable	Ends ragdoll: moves the capsule to the mesh, re-attaches the mesh with the initial relative transform and optionally sets Falling movement.
Physics Is Rag Doll	Callable	True if any body of the character's mesh is simulating physics.
Physics Get Locationof Rag Doll	Callable	World location of the root bone of a ragdolling character.
Physics Initialize Rag Doll	Callable	Stores the mesh's initial relative location and rotation for later use with Leave Rag Doll.
Physics Update Character Camera to Ragdoll Location	Callable	Interpolates the character (and its camera) toward the ragdoll's location with a height offset.
Get Velocity at Point	Callable	World velocity of a point on a physics-simulated component or bone, optionally drawing debug info.
Set Center Of Mass Offset	Callable	Offsets the physics-calculated centre of mass of a component or bone.

OmniNodes › AI

Node	Type	Description
AI Move to with Filter	Callable	Moves a pawn's AI controller to a location using an optional navigation query filter class (per-move filtering of custom nav areas).
Get Closest Actor Of Class in Radius Of Location	Pure	Closest actor of a class within a radius of a location. Is Valid is false when none is found.
Get Closest Actor Of Class in Radius Of Actor	Pure	Closest actor of a class within a radius of another actor (the centre actor itself is ignored).

OmniNodes › Team

Node	Type	Description
Get Generic Team Id	Pure	Team id of an actor implementing the generic team agent interface (255 = no team).
Set Generic Team Id	Callable	Sets the team id of an actor implementing the generic team agent interface.

Level streaming & networking

11 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › LevelStreaming

Node	Type	Description
Get Level Instance Info	Callable	Package names, transform, load/visible flags and LOD index of a dynamic streaming level.
Add to Streaming Levels	Callable	Adds a streaming level from a level instance info and flushes level streaming.
Remove from Streaming Levels	Callable	Unloads and removes a streaming level by package name.
Hide Streaming Level	Callable	Hides a dynamic streaming level.
Unload Streaming Level	Callable	Unloads a dynamic streaming level.

OmniNodes › Networking

Node	Type	Description
Get Player Unique Net ID	Pure	Player id from the first player controller's player state (-1 if unavailable).
Player State Get Player ID	Callable	Player id from a player controller's player state.
Is Stand Alone	Pure	True if the world runs as a standalone (non-networked) game.

OmniNodes › Controller

Node	Type	Description
Player Controller Get Controller ID	Callable	Controller id of a player controller's local player.

OmniNodes › Player Controller

Node	Type	Description
Get My IP Send Request	Callable	Target: `AOmniNodesPlayerController`. Requests this machine's public IP address from the public ipify service; false if the request could not start.
Get My IP ~ Data Received	Event	Target: `AOmniNodesPlayerController`. Implement to receive the public IP address (or an error text).

System, process & GPU

42 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › System

Node	Type	Description
Create Proc	Callable	Launches an external program with arguments, detach/hidden options, priority and working directory. Returns the process id; pass a Process Pipe to capture its output.
Get Process Application Name	Pure	Executable name of a process id (for example one returned by Create Proc).
Is Process Running	Pure	True if the process id is still running.
Get Unix Time Stamp	Pure	Converts a UTC date/time to a Unix timestamp (seconds since 1970-01-01 UTC, int64).
Get UTCFrom Unix Time Stamp	Pure	Converts a Unix timestamp (int64 seconds) to a UTC date/time.
Set Component Tick Rate	Callable	Sets a component's tick interval in seconds at runtime.
Get Command Line	Pure	Returns the command line the engine was started with.
Server Travel	Callable	Server travel to a map (asynchronous level change), optionally skipping player notifications.
Get Player Start	Callable	Finds a Player Start actor by its object name.
Get Names Of Loaded Levels	Pure	Package names of all streaming levels that are currently loaded and visible.
Open URL in Web Browser	Callable	Opens a URL in the operating system's default web browser.
Operating System Get Current Platform	Pure	Booleans telling which platform the game is running on (Windows, Mac, Linux, iOS, Android and others).
Real World Time Get Current OSTime	Pure	Current local date/time as a string (with milliseconds) plus its individual components.
Real World Time Get Time Passed Since Previous Time	Pure	Milliseconds, seconds, minutes and hours elapsed since a time string returned by Get Current OS Time.
Real World Time Get Difference Between Times	Pure	Difference between two time strings returned by Get Current OS Time.
Seconds to Hours Minutes Seconds	Pure	Formats seconds in the engine timespan format with a leading sign (+00:05:30); Trim Zeroes removes zero hours (+05:30).
Options Menu Get Display Adapter Screen Resolutions	Pure	Supported screen resolutions (widths, heights, refresh rates in parallel arrays), optionally distinct per refresh rate.
World Type in Editor World	Pure	True when the world context is an editor world.
World Type in PIEWorld	Pure	True when the world context is a Play In Editor world.
World Type in Game Instance World	Pure	True when the world context is a standalone game world.
Viewport Enable World Rendering	Callable	Turns 3D world rendering on or off for a player's viewport; UMG and HUD keep drawing (useful behind loading screens).

OmniNodes › Process

Node	Type	Description
Create Pipe	Callable	Target: `UOmniNodesProcessPipe`. Creates the read/write pipe pair (does nothing if it already exists).
Close Pipe	Callable	Target: `UOmniNodesProcessPipe`. Closes the pipes. Also called automatically when the object is destroyed.
Read from Pipe	Callable	Target: `UOmniNodesProcessPipe`. Reads the output (STDOUT/STDERR) written so far by the process. Returns false if the pipe was not created.
Pipe Is Valid	Pure	Target: `UOmniNodesProcessPipe`. True while both pipe handles exist.

OmniNodes › GPU

Node	Type	Description
Get GPUBrand	Pure	Primary GPU brand string reported by the platform.
Get RHIAdapter Name	Pure	Name of the graphics adapter used by the renderer.
Get GPUInfo	Pure	Device description, provider, driver version and driver date of the active graphics adapter.
Get User Display Adapter Brand	Pure	Whether the active GPU is AMD, NVIDIA or Intel; for other vendors returns Is Unknown and the vendor id.

OmniNodes › Misc

Node	Type	Description
Create Texture Render Target 2D	Callable	Creates a new render target texture (size, clear colour, gamma) for runtime scene captures.
Load Object from Asset Path	Callable	Loads an asset from a reference path (the format of right-click > Copy Reference). Store the result to keep it alive.
Get Object Path	Pure	Reference path of an object, in the format accepted by Load Object from Asset Path.
Loops Reset BPRunaway Counter	Callable	Resets the Blueprint infinite-loop (runaway) counter. Use with great care in intentionally long loops.
Project World to Screen Position	Callable	Projects a world location to screen coordinates of the first local player's viewport.
Create Primitive Component	Callable	Creates and registers a primitive component of the given class in the world at a location and rotation.
Draw Circle	Callable	Draws a debug circle from line segments around a centre, in the plane defined by the Y and Z axes.
Get Box Containing World Points	Pure	Centre and extent of the box that encloses all supplied points.
Selection Selection Box	Callable	Marquee selection: actors (optionally filtered by class) whose screen position lies inside the box between two screen points.
Calcs Closest Point to Source Point	Callable	Closest point in an array to a source point and its distance (-1 when the array is empty).
Lens Flare Get Lens Flare Offsets	Callable	Pitch, yaw and roll difference between the player's view rotation and the direction to a light source.
Distance to Surface Distace Of Point to Mesh Surface	Callable	Distance from a point to the collision surface of a Static Mesh Actor and the closest surface point (-1 on error).
Mobility Set Scene Comp Mobility	Callable	Changes the mobility (Static / Stationary / Movable) of a scene component.

TMap component

28 nodes. Categories are shown as they appear in the Blueprint context menu.

OmniNodes › TMap Component › Add

Node	Type	Description
String Actor Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the String → Actor table.
String String Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the String → String table.
String Int Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the String → Integer table.
String Vector Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the String → Vector table.
String Rotator Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the String → Rotator table.
Int Vector Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the Integer → Vector table.
Int Float Add Pair	Callable	Target: `UOmniNodesTMapComponent`. Adds or replaces the value for a key in the Integer → Float table.

OmniNodes › TMap Component › Get

Node	Type	Description
String Actor Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the String → Actor table; Is Valid is false if the key is missing.
String String Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the String → String table; Is Valid is false if the key is missing.
String Int Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the String → Integer table; Is Valid is false if the key is missing.
String Vector Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the String → Vector table; Is Valid is false if the key is missing.
String Rotator Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the String → Rotator table; Is Valid is false if the key is missing.
Int Vector Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the Integer → Vector table; Is Valid is false if the key is missing.
Int Float Get	Pure	Target: `UOmniNodesTMapComponent`. Value for a key in the Integer → Float table; Is Valid is false if the key is missing.

OmniNodes › TMap Component › Remove

Node	Type	Description
String Actor Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the String → Actor table.
String String Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the String → String table.
String Int Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the String → Integer table.
String Vector Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the String → Vector table.
String Rotator Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the String → Rotator table.
Int Vector Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the Integer → Vector table.
Int Float Remove	Callable	Target: `UOmniNodesTMapComponent`. Removes a key from the Integer → Float table.

OmniNodes › TMap Component › Clear

Node	Type	Description
String Actor Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the String → Actor table.
String String Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the String → String table.
String Int Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the String → Integer table.
String Vector Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the String → Vector table.
String Rotator Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the String → Rotator table.
Int Vector Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the Integer → Vector table.
Int Float Clear	Callable	Target: `UOmniNodesTMapComponent`. Empties the Integer → Float table.

Troubleshooting

Symptom	Cause and fix
An OmniNodes node does not appear in the context menu.	Make sure the plugin is enabled (Edit > Plugins > Blueprints). Nodes of `UOmniNodesProcessPipe`, `AOmniNodesPlayerController` and `UOmniNodesTMapComponent` only appear when you drag from a reference of that class or turn off Context Sensitive.
Get Pixel from T2D / Get Pixels Array from T2D return false.	The texture's Compression Settings must be VectorDisplacementmap (RGBA8); a Message Log entry is written in PIE when it is not. The nodes also turn sRGB off on the texture.
The key rebinding nodes return empty arrays.	They read and write the legacy action/axis mappings of the Input Settings. Projects that only use Enhanced Input mapping contexts have no legacy mappings to list or rebind.
Get Static Mesh Vertex Locations returns false or no positions.	The node reads the complex-collision triangle mesh of the component's body setup. The static mesh needs complex (per-polygon) collision data.
Get Sound Wave from File returns None.	Only Ogg Vorbis (`.ogg`) files are decoded. Check the absolute path and the file format; WAV and MP3 files are not supported by this node.
Flash Game on Task Bar has no effect.	It is implemented for Windows only and does nothing on Mac and Linux. In Play In Editor the editor window is flashed, which is less visible than in a standalone game.
Get My IP ~ Data Received never fires.	The event belongs to `AOmniNodesPlayerController`: set it (or a Blueprint child) as the Player Controller Class of the Game Mode, call Get My IP Send Request on it and make sure the machine has internet access.
An object returned by Load Object from Asset Path disappears.	Store the returned object in a variable; otherwise it can be garbage collected. Use the exact path format produced by right-click > Copy Reference.

OmniNodes300+ extra Blueprint nodes

Overview

Requirements

Installation

Quick start

Blueprint: read every text file in the Saved folder

Blueprint: show a clock

C++

Classes & types

Files, paths & config

OmniNodes › File IO

OmniNodes › Paths

OmniNodes › Screenshots

OmniNodes › MD5

OmniNodes › Custom Config Vars

Strings & conversion

OmniNodes › String

OmniNodes › Utilities › String

OmniNodes › Conversion

Math

OmniNodes › Math

OmniNodes › Math › Float

OmniNodes › Math › Integer

OmniNodes › Math › Vector

OmniNodes › Math › Vector › Intersection

OmniNodes › Math › Vector2D

OmniNodes › Math › Plane

OmniNodes › Math › Anchor

OmniNodes › Vector

OmniNodes › Rotator

OmniNodes › Transform

OmniNodes › Console

Arrays & random numbers

OmniNodes › Array

OmniNodes › Utilities › Array

OmniNodes › Random

Textures, capture & materials

OmniNodes › Load Texture From File

OmniNodes › SceneCapture

OmniNodes › Material

OmniNodes › Post Process

Sound & subtitles

OmniNodes › Sound

OmniNodes › Subtitles

Input & key rebinding

OmniNodes › Input

OmniNodes › Key Rebinding

UMG, viewport & graphics

OmniNodes › UMG

OmniNodes › Widget › Panel

OmniNodes › Game › Viewport

OmniNodes › Game Window

OmniNodes › Graphics Settings

Actors, components & characters

OmniNodes › Actor

OmniNodes › Actor › Get Immediate Attached Actors

OmniNodes › Components

OmniNodes › Components › SkinnedMesh

OmniNodes › Character

OmniNodes › Aim Offset

OmniNodes › 3d Lines

OmniNodes › Traces

OmniNodes › Instanced Static Mesh

OmniNodes › Physics

OmniNodes › AI

OmniNodes › Team

Level streaming & networking

OmniNodes › LevelStreaming

OmniNodes › Networking

OmniNodes › Controller

OmniNodes › Player Controller

System, process & GPU

OmniNodes › System

OmniNodes › Process

OmniNodes › GPU

OmniNodes › Misc

TMap component

OmniNodes › TMap Component › Add

OmniNodes › TMap Component › Get

OmniNodes › TMap Component › Remove

OmniNodes
300+ extra Blueprint nodes