Emilie Meyer
The 360 Stereo Panoramic Player is a runtime plugin for Unreal Engine 5 that allows users to interact with 360-degree panoramic images and videos in both mono and stereo formats. It offers two types of actors: a high-level actor (Panoramic Director) that allows users to quickly assemble an interactive panoramic virtual tour without coding, and a low-level actor (Panoramic Sphere) that enables programmatic customization of the user experience. The plugin is compatible with major platforms such as PC, VR (SteamVR, Vive HTC, Oculus, Oculus Quest, Oculus Quest 2, etc.), iOS, and Android. To use Stereo Layers with a VR Pawn, users need to open the desired Pawn, access the Viewport panel, add the Stereo Layer Component, and adjust its position and texture. Additionally, the Panoramic Capture Tool in Unreal Engine 4.26 allows users to create and view stereo panoramic screenshots.
| Characteristics | Values |
|---|---|
| Plugin name | 360 Stereo Panoramic Player |
| What it does | Show and interact with 360° panoramic images and videos |
| Compatibility | PC desktop, VR (SteamVR, Vive HTC, Oculus, Oculus Quest, Oculus Quest 2, Google Cardboard, etc.), iOS and Android |
| High-level actor | Panoramic Director, to quickly assemble an interactive panoramic virtual tour without the need to write any code |
| Low-level actor | Panoramic Sphere, to allow a complete programmatic customisation of the user experience |
| Other features | Google Analytics Measurement Protocol, Google Cardboard VR |
| Image formats | 8-bit (.png), 32-bit (.exr) |
| Video formats | 360° panoramic videos (mono and stereo) |
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What You'll Learn
Using the Panoramic Capture Tool
The Panoramic Capture plugin for UE4 allows users to capture still images or movies that can be viewed or played back in stereo, creating the illusion of the world being rendered in real time. This plugin has been renamed from Stereo Panoramic Capture to reflect new features, such as the merging of left and right eye images into one top/bottom image to support the top/bottom stereo standard.
To use the Panoramic Capture Tool, first create a new project from the Games > First Person template. Press the Create Project button to load the new project. With your project open, select Edit > Plugins from the main menu. From the Plugins menu, under Movie Capture, enable the Panoramic Capture plugin. Restart the editor when prompted.
Open the Content Browser and browse to PanoramicCapture Content > Assets. By default, the Content Browser does not show plugin content. In this step, you will use the Panoramic Capture plugin and the BP_Capture Blueprint to capture the images of the level in Stereo 3D. The default output of the BP_Capture Blueprint is 8-bit (.png), with 32-bit (.exr) as an optional setting in the Blueprint.
During the capture process, the editor might appear frozen or unresponsive for a few seconds or even a few minutes. This is due to the demanding rendering requirements of the Panoramic Capture plugin. When the editor becomes responsive again, you will be able to find the screenshots in the following location: C:\PanoramicCaptureFrames\[Date & Time]\FinalColor\Frame_00000_FinalColor.png.
It is important to note that effects created in screen space or those that are camera-facing will not work with the Panoramic Capture Tool. These effects should be disabled to avoid errors in the captured images. Additionally, the default capture of a stereoscopic image is 6K, which requires a significant amount of resources. To reduce resource impact, lower the value specified for SP.StepCaptureWidth, which will decrease the size of the image capture.
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Setting up VR Stereo Layers
To set up VR Stereo Layers in Unreal Engine, you will need to follow these steps:
Firstly, open the Pawn that you want to use Stereo Layers with and navigate to the Viewport panel. From the drop-down list, click on the "Add Components" button and search for the "Stereo Layer Component". Drag this component on top of the Pawn's camera to make it a child actor of the camera.
Next, select the Stereo Layer Component from the Components list and adjust its settings. In the Details Panel under the Transform section, set the X value of Location to 100 for better visibility in VR. Then, expand the Stereo Layer section in the Details Panel.
Now, you need to locate the desired Texture for your Stereo Layer. In the Content Browser, find and select the Texture you want to display. Back in the Pawn Blueprint, under the Stereo Layers section, press the small white triangle next to the Texture input to assign the selected Texture to the Stereo Layer.
It's important to ensure that you are using the correct Texture Compression settings for your specific HMD (Head-Mounted Display). If the Texture doesn't display correctly in VR, refer to the Stereo Layers Texture Compression Settings section in the documentation to adjust the settings accordingly.
Additionally, keep in mind that the ordering of layers matters. Layers with higher priority will be rendered on top of layers with lower priority. Face-locked layers will always be rendered in front of World or Tracker-locked layers, regardless of priority. If you want to mix layer priorities, you can set the vr.StereoLayers.bMixLayerPriorities console variable to 1, but this is not supported for all platforms.
By following these steps, you should be able to successfully set up and utilize VR Stereo Layers in your Unreal Engine project.
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Using the 360 Stereo Panoramic Player plugin
The 360 Stereo Panoramic Player plugin is a runtime plugin for Unreal Engine 5 that allows users to show and interact with 360-degree panoramic images and videos. It supports both mono and stereo sources and is compatible with major platforms including PC, VR, iOS, and Android. The plugin offers two types of actors: a high-level actor called the Panoramic Director and a low-level actor called the Panoramic Sphere.
The Panoramic Director allows users to quickly assemble an interactive panoramic virtual tour without the need to write any code. It provides a high-level solution for users to easily create and manage a custom player for their panoramic media.
The Panoramic Sphere, on the other hand, offers a low-level solution and allows for complete programmatic customization of the user experience. It gives users full access to all the supported features, such as displaying panoramic media, managing interactions with hotspots and widgets, and detecting interactions with panoramic sources.
To use the 360 Stereo Panoramic Player plugin, users can install it and enable it for their specific project. The plugin provides pre-built binaries and source code that integrates with Unreal Engine.
Additionally, users can customize their panoramic sphere by adding UMG widgets. These widgets can serve as interactive hotspots or aesthetic elements. To add these widgets, users can call the `NewPanoramicWidget()` function to create a new `UPanoramicWidgetComponent`, specifying the widget to be displayed. Then, they can call the `AttachWidget()` method on the Panoramic Sphere actor to add the widget component to the sphere. When the widget is no longer needed, users must call `DestroyComponent()` to dispose of it properly.
The plugin also supports an Opaque rendering mode, simplifying the process of drawing 3D objects within a panoramic sphere. This feature is available starting from version 1.1.0 of the plugin.
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Google Cardboard VR plugin
The Google Cardboard VR plugin is a plugin for Unreal Engine 4 and 5 that adds support for Google Cardboard VR headsets for both iOS and Android platforms. It integrates the official Google Cardboard SDK, which allows you to run mobile VR projects on iOS and Android devices using Google Cardboard VR viewers.
To configure and use the plugin, you can refer to the Quick Start guide provided by Unreal Engine. First, ensure that you have downloaded and built the latest version of Unreal Engine with Google VR integrated. Then, open the Edit tab in the Main Toolbar and select Plugins. Navigate to the Virtual Reality section and enable Google VR by clicking the checkbox next to it. You will be prompted to restart the Editor for the changes to take effect.
It is important to note that failing to restart the Editor after enabling the plugin may result in it not working correctly. Once you have restarted the Editor, you can create a new project or adjust the settings of your existing project to utilize the Google Cardboard VR plugin. You can also refer to the sample project provided by UNAmedia to get started with the plugin.
Additionally, the Google Cardboard VR plugin provides access to head tracking data even when not in VR mode. However, tablets, particularly iPads, are not currently supported by the Google Cardboard SDK. While the stereo mode can be enabled with the plugin, the viewer parameters and distortion mesh may not correctly match the physical screen size of the device.
To enhance your development experience, you can explore other plugins offered by Unreal Engine. For example, the Google Analytics Measurement Protocol plugin enables you to collect analytics about your app usage across various platforms, including iOS, Android, desktop, and console. The 360 Stereo Panoramic Player plugin provides a framework to display and interact with 360-degree panoramic images and videos, supporting both mono and stereo sources, allowing you to create Virtual Tours without any coding required.
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Google Analytics Measurement Protocol plugin
The Google Analytics Measurement Protocol is a plugin for Unreal Engine that adds support for Google Analytics. It uses a native cross-platform implementation of the HTTPS APIs provided by Google, such as the Measurement Protocol and the GA4 gtag protocol. This means that the plugin is compatible with all platforms supported by Unreal Engine, including desktop, mobile, and consoles, and does not require any third-party dependencies.
The plugin is a provider for the standard In-Game Analytics system of Unreal Engine. It supports distinct GA4 Measurement IDs/UA Tracking IDs depending on the project build configuration, and all its features are available from both Blueprints and C++. It should be noted that this product is not made by, or affiliated with, Google Inc in any way.
Setting up the plugin is a straightforward process. Users simply need to enable the plugin and set the Measurement ID of their Google Analytics 4 web property. The plugin then offers automatic instrumentation, which means it will log important events to Google Analytics, including user sessions, maps loaded, operating system details, and more.
The plugin also supports advanced features such as detailed purchase reporting. It provides a simple API that allows users to log custom events and detailed purchase transactions. This API gives users access to key usage data for their game or application.
To get started with the plugin, users can refer to the "Getting Started with Google Analytics 4" guide. This will help them enable and configure the plugin, after which they can start receiving key usage data.
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Frequently asked questions
The Stereo Panoramic Player is a runtime plugin that allows users to show and interact with 360-degree panoramic images and videos, supporting both mono and stereo sources. It is compatible with major platforms like PC, VR, iOS, and Android.
The plugin offers two actors: a high-level actor (Panoramic Director) and a low-level actor (Panoramic Sphere). The Panoramic Director helps assemble an interactive panoramic virtual tour, while the Panoramic Sphere allows programmatic customization of the user experience.
Ensure that you are using the correct Texture Compression settings for your HMD. When using multiple layers, set different priorities for defined ordering, as layers with the same priority are rendered in a non-defined order.
Yes, the Google Analytics Measurement Protocol plugin collects analytics about your application usage. The Google Cardboard VR plugin adds support for Google Cardboard VR viewers to your iOS and Android apps.
