MO-SYS VP Pro XR - Render Nodes Setup: nDisplay Level and Geometry; Livelink Setup for Real-time Tracking; nDisplay Level Structure and Content; Defining LED Screen Geometry with Mesh Builder

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Render nodes setup (nDisplay)
Livelink Setup
Start with the Primary Render Node and set
up the livelink connection with StarTracker.
Refer to our VP Free manual for setup:
Remember to stop the livelink in editor
before launching the project through
nDisplay Launcher, as the tracking can only
go to one application.
nDisplay Level
Open “nDisplayExample4_27” level in
MoSysVPPro Content/nDisplay/Maps.
We will be following the "in-Camera VFX
Template", which can be found in
In-Camera VFX Quick Start guide here:
https://docs.unrealengine.com/en-
US/WorkingWithMedia/InCameraVFX/InCam
eraVFXQuickStart/index.html
MoSysCameraNDisplay is used for the
inner frustum. Refer to VP Free manual for
more information on nDisplay integration
on pages 9-11.
The content should have a dedicated level,
which is a sublevel to the main nDisplay
level. nDisplay level should only store the
objects related to nDisplay architecture and
necessary to track the camera. You can add
or remove the content levels there, so it fits
the current shoot. Below is an example of
the levels setup:
Defining LED Screens
Depending on the number and shape of the
LED volumes the virtual layout needs to be
adjusted. Usually one Node is responsible
for one viewport.
Edit nDisplayRootActorST to define the
viewports. Refer to Step 3 and the
screenshots on previous page.
Top part of the nDisplay config actor defines
the LED screen transform (where it is in
space) and the bottom part describes the
pixel mapping on screen space (In other
words where, in relation to the top right
corner of the screen, the image should be
rendered)
Every viewport responsible for rendering to
a part of the LED volume, is represented as
a mesh in Unreal. This can take any shape. It
can be a simple plane or a preprepared
mesh like a curved model of a screen.
Refer to Step 2 - Create LED Panel Geometry
in In-Camera VFX Quick Start guide for
building a complex mesh.
See screenshots on previous page.
Mesh Builder
You can use Mesh Builder to generate this
representation automatically, by looking
through a camera with the crosshair at the
corners of the screen. Three observations
are used for calculations.