> For the complete documentation index, see [llms.txt](https://docs.timeinpixels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.timeinpixels.com/nobe-omniscope/features/pipeline-overview.md).

# Pipeline Overview

Available from version **1.11.25**.

Pipeline Overview is a live diagnostic view that shows exactly what OmniScope is doing with your signal — from the moment a frame arrives to the scopes that display it. Open it to verify at a glance which preprocessing steps, color transforms, and QC analyses are active for each connected input.

<figure><img src="/files/MKvKnlPC52xGosG29zSM" alt=""><figcaption><p>Pipeline Overview window</p></figcaption></figure>

## Opening Pipeline Overview

**Help > Pipeline Overview**

The window stays open until you close it, and its visibility is remembered across application restarts.

## Reading the Graph

Each connected input gets its own horizontal lane with four nodes, connected left to right in processing order:

| Node             | Description                                                                                                                      |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| **Input Source** | The connected source and its incoming signal: resolution, frame rate, pixel format, color space, and signal range (Video / Full) |
| **Preprocess**   | Every transform applied to the frame before analysis — crop, input LUT, flips, scaling, and color space conversion               |
| **Compute / QC** | The analysis passes currently running on the GPU — gamut check, HDR statistics, histograms, signal statistics, and more          |
| **Scopes**       | The scopes in your current layout that display this input                                                                        |

If multiple inputs are connected, the lanes are stacked vertically — one per input. When no input is connected, the window shows *No connected inputs*.

## What Each Node Shows

### Input Source

Displays the source name (e.g. *DeckLink*, *NDI*, *Video File*) followed by the properties of the incoming signal. Before the first frame arrives, the node shows *Awaiting frames*.

### Preprocess

Lists only the steps that are actually active, so you can immediately spot unintended processing:

* **Crop** — a [crop region](/nobe-omniscope/features/crop.md) is applied
* **Input LUT** — an input [3D LUT](/nobe-omniscope/features/3d-lut.md) is loaded
* **Flip H / Flip V** — horizontal or vertical flip
* **Snapshot Blend** — a [snapshot](/nobe-omniscope/features/snapshots.md) is blended over the live signal
* **Lanczos** — high-quality Lanczos scaling is in use
* **Scale** — the frame is being resized (with the scale factor)
* **CSC** — active color space conversion mode (DaVinci Wide Gamut or OCIO)
* **In / Work / Display** — the OCIO input, working, and display color spaces when [color management](/nobe-omniscope/features/3d-lut.md) is active

If nothing is applied, the node reads *Pass-through* — the signal reaches the scopes untouched.

### Compute / QC

Shows which analysis passes are running for this input:

* **Gamut Check** — [gamut error detection](/nobe-omniscope/qc/gamut-check.md)
* **HDR Stats** — [MaxFALL & MaxCLL accumulation](/nobe-omniscope/qc/hdr-statistics-maxfall-and-maxcll.md)
* **Blanking** — [blanking detection](/nobe-omniscope/qc/blanking-detection.md)
* **Signal Stats** — min/max and signal statistics
* **Histogram** — active histogram channels (Y, RGB, Hue, Sat)
* **EBU R103** — EBU R 103 legality checking
* **Chroma** — chroma analysis
* **Color Picker** — active color picker probes (with the number of points)

### Scopes

Lists every scope in the current layout that is fed by this input — for example *Waveform*, *Vectorscope*, *CIE Plot*. Scopes assigned to other inputs are not listed in this lane.

## Use Cases

* **"Why does my signal look different in OmniScope?"** — check the Preprocess node; an input LUT, color space conversion, or scale step explains discrepancies immediately
* **Verifying a QC setup** — confirm that gamut check, HDR statistics, or blanking detection are actually enabled for the right input before starting a QC pass
* **Multi-input sessions** — see at a glance which scopes are attached to which input, and which processing chain each signal goes through
* **Performance troubleshooting** — a quick inventory of every compute pass currently running on the GPU

## Related

* [3D LUT & Color Management](/nobe-omniscope/features/3d-lut.md)
* [Crop](/nobe-omniscope/features/crop.md)
* [Performance settings](/nobe-omniscope/settings-and-preferences/performance-settings.md)