Pixel Inspector

The Pixel Inspector shows you what is happening in the various parts of the GBuffer at a given pixel.

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Using the Pixel Inspector
Pixel Inspector Data Reference

The Pixel Inspector tool is a Developer Tool that will allow you to diagnose the pixels that make up the colors in your scene. If you want to know why a pixel is producing an unexpected color (or maybe what Material input is driving a pixel's color), you can use the Pixel Inspector's Inspect Mode to output information that is driving the pixel's visual result.

Using the Pixel Inspector

To enable and use the Pixel Inspector:

From the Main Editor Window go to the Window menu option under Developer Tools and select Pixel Inspector .

The Pixel Inspector Window will open.
Click the Search (magnifying glass) button to start pixel inspection.
Move the mouse over any viewport (Level, Material, Blueprint, or other) to populate the Pixel Inspector data fields in realtime.
Press Escape to stop inspection and populate the Pixel Inspector data fields with the last inspected pixel.

Pixel Inspector Data Reference

Below are the data fields that will become populated with a pixel's information during inspection:


Option	Description
Viewport ID	Displays the ID of which viewport the Pixel Inspector is drawing from.
Coordinate	Displays the X/Y coordinates from the current inspection (can be manually set).
Final Color
Context Colors	Displays the Context Colors associated with the current inspection.
Final Color	Final RGBA 8bits Color after tone mapping (default value is black).
Scene Color
Scene Color	The RGB Scene Color applied from the current inspection.
Pre-Exposure	Apply Pre-Exposure before writing to the scene color under Rendering
HDR
Luminance	HDR Luminance value for current inspection.
HDR Color	The HDR RGB Color value being applied.
GBuffer A
Normal	The Normal applied from the GBufferA channel.
Per Object GBuffer Data	The amount of per object data from the GBufferA Channel.
GBuffer B
Metallic	The Metallic value applied from the GBufferB R Channel.
Specular	The Specular value applied from the GBufferB G Channel.
Roughness	The amount of Roughness applied from the GBufferB B Channel.
Material Shading Model	The shading model from the GBufferB A Channel encoded with Selective Output Mask.
Selective Output Mask	The value for the Selective Output Mask from the GBufferB A Channel encoded with Shading Model.
GBuffer C
Base Color	The base color value applied from the GBufferC RGB Channels.
Indirect Irradiance	The value of Indirect Irradiance from the GBufferC A Channel encoded with Ambient Occlusion (AO).
Ambient Occlusion	Using GBuffer Properties and Buffer Visualization

Using GBuffer Properties and Buffer Visualization

Apply Pre-Exposure before writing to the scene color under Rendering

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