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Reality 4.27
Reality 4.27
  • Reality 4.27
    • What's New
    • Introduction to Reality
    • Reality Walkthrough
      • Reality Examples Project
      • Tracking Calibration and Fine Tuning
      • Real-Time Ray Tracing
      • Raw Input
      • Augmented Reality Virtual Studio
      • Green Screen Virtual Studio
      • Setting up Realtime Video I/O
      • Projection Cube
      • Cyclorama Setup
      • Reality Keyer and Fine Tuning
        • Keyer FOV Softness
    • Reality Editor Guide
      • How Reality Editor Works?
      • Exporting UE4 Actors to RealityHub API
        • ZDActor Component
        • Exporting Blueprint Functions
        • Texture Pins on ZDActors
        • Exporting Properties
          • Directly Readable Variable Types
          • Property Update Callbacks
            • OnChanged_Event Callback
            • OnLengthChanged_Event Callback
            • OnChanged_ Function Callback
            • OnLengthChanged_ Function Callback
      • Exporting Assets to Reality API
        • Exporting Actors
        • Exporting Custom Blueprint Node
        • Exporting Custom Material Node
        • Exporting Lens Calibration
        • Exporting Post Process Material
        • Exporting Projection Material
        • Exporting Static Mesh
        • Exporting Unreal Motion Graphics
        • Exporting Unreal Texture Assets
      • Reality Custom Material Nodes
        • Defining the Variables in Material Definition
        • Custom Material Node
      • Using UMG in Reality
        • How to Use UMG with Reality
        • UMG Animations
        • Texture Brush
        • Asset Brush
        • Exporting Custom Events in UMG to Reality API
      • Additional ZD Components
        • ZDPieChart
        • ZDText
      • Helpful Links
      • Reality Editor Settings
        • Enabling DX12 and Ray Tracing
        • Hardware Accelerated Video Decoding
        • Enabling HAP Codec
    • Reality Setup Application
      • Audio
        • Audio Delay Node
        • Virtual Set Audio
        • Audio Mixer
      • Bypass Post Process
      • Fill and Key
        • Fill and Key using Dual-link
        • Fill and Key using Quad-link
      • Crop Function
      • Level Sequencer
      • Color Matrix Node
      • Media Playback
      • Preset for H.264 in Adobe Media Encoder
      • HAP Video Codec
      • Flow Control
      • GPUDirect Technology
    • Installation and Configuration Guide
      • Hardware Platforms
        • Legacy HP Z4G4 Configuration
          • Fan and Front Card Kit
          • Certified Power Supply
          • Video I/O Card Installation
            • Mellanox ConnectX®-5 Card Installation
            • AJA Video I/O Card Installation
          • GPU installation
            • Certified GPUs
            • Connecting GPU to 1000 watts power supply
              • GPU RTX 6000 installation (8+6 pin)
            • Connecting GPU to 750 watts power supply
              • GPU RTX 6000 installation (8+6 pin) Needs 6 to 8 Pin Adapter
          • Installing RAM
          • HP Performance Advisor
      • Adding Reality User to Windows
      • Downloading Distributions
      • Installing Steps
        • Upgrading
        • Installation
      • Configuration Steps
        • NVIDIA Configuration
        • AJA Video Card Configuration
        • R Drive Mapping
        • Internet Options
      • Updating RealityEngine AMPERE
    • Licensing Guide
      • Hardware Licensing
    • Reality Tutorials and Examples
      • Reality Editor Tutorials
        • Open/Close Door
        • Exporting UE Actor to ZD API (a.k.a ZDActor)
        • Custom Blueprint Node Tutorials
          • Using Event Tick Functions and Properties
          • Adding Custom Blueprint Nodes
        • Redirection of the Reality Engine Content
        • Creating Dynamic Materials
        • Changing ZDText with Dynamic String
        • Activating Destructible Mesh
        • Reality Texture Input
        • Activating Fire During Runtime
        • Asset Migration to Another Project
        • Rotating Door by Using Function Parameters
        • Creating Custom Cyclorama
      • Nodegraph Tutorials
        • Portal Window Setup
          • Adding Clipping Plane
          • How to Position Videowall
          • Setting Portal Window and Calibration
          • Creating the Augmented Part
    • Appendices
      • A - Camera Tracking and Lens Calibration
        • Camera Tracking Information
        • Tracking Device, Physical Connections
        • Lens Calibration
      • B - Standard Unreal Engine Post Processing Pipeline
      • C - Reality Keyer
        • What is Image Based Keying?
        • Reality Keyer Pipeline
        • Physical Factors Affecting the Key
      • D - Viewing Videomask
      • E - CLASS setting for Broadcast Cameras
      • F - ZD Blueprint Node Pin Reference
      • G - Utilizing TRAXIS talentS FreeD Data
    • Knowledge Base
    • Known Issues and Limitations
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  1. Reality 4.27
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Color Matrix Node

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Last updated 2 years ago

Color matrix is a form of picture profile in the camera, the color matrix defines the way Red, Green and Blue signals from the sensors are combined. But this results in drastic change in color tint of the cyclorama area which may generate undesirable keying results. To get the best keying output, the color matrix node is introduced to create a post keying color matrix which can be matched with the original camera matrix profiles. The end result is you achieve the best keying while preserving the desired camera matrix profile.

Color matrix such as BBC, EBU, 1:1 are some examples. Color matrix 1:1 is neutral and does not affect the basic color matrix that the camera generates. Since the nature of Reality virtual studio production is sensitively based on how the cyclorama color is captured by the camera and sent to Reality Engine for keying process, any color matrix applied (except 1:1) in the camera may result in non appropriate cyclorama (commonly green) color which may affect keying quality.

To cater to this problem, introducing the COLOR MATRIX node which has the properties to set RGB color matrix.

Let's see below, how to use color matrix on node graph and achieve the desired color matrix of the camera.

  • First set the broadcast camera to desired color matrix (other than 1:1), you will notice change in the color balance.

  • Place some colorful object which includes red, green and blue shares and compose the broadcast camera to fit these objects.

  • Add a STILL STORE node and take a still store of the camera output, see below: