Is it possible to receive one or more NDI streams ?

[tkaulen]

Is it possible to receive one or more NDI streams and project them on a 3D surface? I want to output live visuals in Resolume and recreate a virtual stage in Godod on which the live video stream is played on an LED wall. Unfortunately only NDIOutput Output is documented, which is the opposite of what I need. Is the function I'm looking for VideoStreamPlaybackNDI?

[tkaulen]

will this code work ?

extends Node3D


@export var ndi_source_name: String = "Resolume Output"  # Name des NDI-Streams

var ndi_stream: VideoStreamPlaybackNDI

func _ready():
    # 1️⃣ NDI-Stream initialisieren
    ndi_stream = VideoStreamPlaybackNDI.new()
    ndi_stream.set_source_name(ndi_source_name)  # Setzt den NDI-Stream-Namen
    
    # 2️⃣ VideoStreamPlayer konfigurieren
    var video_player = $VideoStreamPlayer  # Holt den Node aus der Szene
    video_player.stream = ndi_stream  # Weist den NDI-Stream zu
    video_player.play()
    
    # 3️⃣ NDI-Video auf die LED-Wall legen
    var led_wall = $LED_Wall  # Holt das 3D-Mesh
    var material = led_wall.get_surface_override_material(0)  # Holt das Material
    
    if material:  
        material.albedo_texture = video_player.get_texture()  # Setzt die Textur
    else:
        print("⚠️ LED Wall hat kein Material!")

print("✅ NDI-Stream gestartet:", ndi_source_name)

[unvermuthet]

Yes, this is possible. And as for the NDI part, your snippet looks right. If your source names don't change this is a good approach. You can also configure the source name for each VideoStreamNDI directly in the Godot Editor by selecting from a dropdown of discovered sources. For implementing something more dynamic, take a look at NDIFinder examples in the demo folder included with every release.

There is some Godot documentation for what you are trying to do here: https://docs.godotengine.org/en/stable/tutorials/animation/playing_videos.html#displaying-a-video-on-a-3d-surface

[unvermuthet]

Let me know how it goes!