CloudCamPlugin

A plugin that adds CloudCam-based actors to projects as well as a ZeroMq-based network poller to handle the protocol.

Based on this Niagara point cloud technique

Installation

Place in your project's Plugins/ directory. You may need to rename this directory from CloudCamPlugin to CloudCam.

This also requires the ZeroMQ plugin to be installed as well.

See this tutorial on Working with plugins

Usage

You need to set CloudCamActor's "Point Cloud Renderer" (in "Details pane") to the CloudCam_NiagaraSystem.

Old Documentation

Patching the UnrealZeroMQ Plugin

The open source (?) UnrealZeroMQ plugin doesn't build correctly by default, so it's necessary to rip out some of the build script and hardcode a fix. (This might be because it was for an older version of Unreal Engine?)

ZeroMQ.Build.cs

        // NB(bt): This isn't compiling for Unreal Engine 4.25:
        // Error CS0151
        // A switch expression or case label must be a bool, char, string, integral, enum, or corresponding nullable type  
        // c:\Users\echel\OneDrive\Documents\Unreal Projects\AzureKinect\Plugins\UnrealZeroMQ\Source\ZeroMQ\ZeroMQ.Build.cs	29	
        //
        // I'll hardcode the results for Windows x64

        staticLibrary = Path.Combine(ZeroMQRootPath, "Windows", "x64", "libzmq-v141-mt-s-4_3_2.lib");

        /*switch (Target.Platform)
        {
            case UnrealTargetPlatform.Win64:
                staticLibrary = Path.Combine(ZeroMQRootPath, "Windows", "x64", "libzmq-v141-mt-s-4_3_2.lib");
                break;
            case UnrealTargetPlatform.Win32:
                staticLibrary = Path.Combine(ZeroMQRootPath, "Windows", "x86", "libzmq-v141-mt-s-4_3_2.lib");
                break;
            case UnrealTargetPlatform.Linux:
                staticLibrary = Path.Combine(ZeroMQRootPath, "Linux", "libzmq.so");
                PublicAdditionalLibraries.Add("stdc++");
                break;
            case UnrealTargetPlatform.Mac:
                staticLibrary = Path.Combine(ZeroMQRootPath, "MacOS", "libzmq.a");
                break;
            default:
                Console.WriteLine("unsupported target platform: %s", Target.Platform);
                Debug.Assert(false);
                break;
        }*/

The 3rd party hpp header also needs fixes,

ThirdParty\libzmq_4.3.1\include\zmq.hpp

#if PLATFORM_WINDOWS && !defined(WINDOWS_PLATFORM_TYPES_GUARD)
	#include <Windows/AllowWindowsPlatformTypes.h>
	#include "zmq_impl.hpp"
	#include <Windows/HideWindowsPlatformTypes.h>
#else
	#include "zmq_impl.hpp"
#endif