Helpers

Skyreal VR provides a set of blueprint helper functions that extend the functionality available in Unreal Editor. These helpers cover file operations, JSON handling, camera utilities, and more.

File Helpers

Functions for interacting with the file system:

Function	Description
TestFileExist	Checks on disk if a file exists
TestDirectoryExist	Checks on disk if a directory exists
[PathToStringArray]	Converts a path into a list of strings (e.g., `c:/MyPath/Test/MyFile.txt` → `{"c:", "MyPath", "Test", "MyFile.txt"}`)
OpenWindowsPhotoViewer	Opens an image with the default Windows image application
LaunchFileInDefaultExternalApplication	Opens the default application for a given file with custom arguments — useful for launching external executables at runtime
ExploreFolder	Opens Windows Explorer at a given file location

JSON Helpers

Skyreal VR includes the JsonBlueprint plugin by default, providing blueprint nodes for creating and parsing JSON data.

Example JSON structure:

JSON

{
    "Even": [0, 2, 4],
    "Odd": ["one", "three", "five"],
    "Object": {
        "ObjectParam1": true,
        "ObjectParam2": true
    }
}

[IFRAME: JSON blueprint example — original at https://blueprintue.com/render/yu3t-tna/]

Other Helpers

Function	Description
ContainsInCmd	Determines if a parameter is present in the program's command-line arguments and returns its value if it exists
GetActorMeshBox	Returns the mesh bounding box of an actor, excluding pivot point offset
GetCameraTransformToFitToProduct	Computes the best camera transform to fit a selection on screen
GetSelectionCenterOfMass	Returns the center of mass of a set of actors