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Showing content from https://docs.unity3d.com/Manual/urp/features/rendering-debugger-reference.html below:

Manual: Rendering Debugger window reference for URP

Add controls to the Rendering Debugger in URP

Graphics performance and profiling in the Built-In Render Pipeline

The Rendering Debugger contains the following sections:

• Display Stats
• Frequently Used
• Rendering
• MaterialAn asset that defines how a surface should be rendered. More info
  See in Glossary
• Lighting
• Render Graph
• Probe Volume

The Display Stats panel shows statistics relevant to debugging performance issues in your project. You can only view this section of the Rendering Debugger in Play Mode. Refer to Open the Rendering Debugger for more information.

The Frame Stats section displays the average, minimum, and maximum value of each property. URP calculates each Frame Stat value over the 30 most recent frames.

A bottleneck is a condition that occurs when one process performs significantly slower than other components, and other components depend on it.

The Bottlenecks section describes the distribution of the last 60 frames across the CPU and GPU. You can only check the Bottleneck information when you build your player on a device.

Note: Vsync limits the Frame Rate based on the refresh rate of your device’s screen. This means when you enable Vsync, the Present Limited category is 100% in most cases. To turn Vsync off, go to Edit > Project settings > Quality > Current Active Quality Level and set the Vsync Count set to Don’t Sync.

• Vertical Sync (Vsync): Vsync synchronizes rendering to the refresh rate of your display.
• Target framerate: A function that you can use to manually limit the frame rate of an application. If a frame is ready before the time you specify in targetFrameRate, Unity waits before presenting the frame.

If VsyncVertical synchronization (VSync) is a display setting that caps a game’s frame rate to match the refresh rate of a monitor, to prevent image tearing.
See in Glossary limited 20 of the 60 most recent frames, the Bottleneck section might appear as follows:

• CPU 0.0%: This indicates that URP did not render any of the last 60 frames on the CPU.
• GPU 66.6%: This indicates that the GPU limited 66.6% of the 60 most recent frames rendered by URP.
• Present Limited 33.3%: This indicates that presentation constraints (Vsync or the target framerate) limited 33.3% of the last 60 frames.
• Balanced 0.0%: This indicates that in the last 60 frames, there were 0 frames where the CPU processing time and GPU processing time were the same.

In this example, the bottleneck is the GPU.

The Detailed Stats section displays the amount of time in milliseconds that each rendering step takes on the CPU and GPU. URP updates these values once every frame based on the previous frame.

This section contains a selection of properties that users use often. The properties are from the other sections in the Rendering Debugger window. For information about the properties, refer to the sections Material, Lighting, and Rendering.

The properties in this section let you visualize different rendering features.

• None: Renders the scene normally without a texture overlay.
• Depth: Overlays the camera’s depth texture on the screen.
• Additional Lights Shadow Map: Overlays the shadow map that contains shadows cast by lights other than the main directional light.
• Main Light Shadow Map: Overlays the shadow map that contains shadows cast by the main directional light.

• You set Anti Aliasing (MSAA) to a value other than Disabled in your URP Asset.
• You use the Game View. MSAA has no effect in the Scene View.

• Disabled: Disables post-processing.
• Auto: Unity enables or disables post-processing depending on the currently active debug modes. If color changes from post-processing would change the meaning of a debug mode’s pixel, Unity disables post-processing. If no debug modes are active, or if color changes from post-processing don’t change the meaning of the active debug modes’ pixels, Unity enables post-processing.
• Enabled: Applies post-processing to the image that the camera captures.

• None: Doesn’t render wireframes.
• Wireframe: Exclusively renders edges for meshes in your scene. In this mode, you can see the wireframe for meshes through the wireframe for closer meshes.
• Solid Wireframe: Exclusively renders edges and faces for meshes in your scene. In this mode, the faces of each wireframe mesh hide edges behind them.
• Shaded Wireframe: Renders edges for meshes as an overlay. In this mode, Unity renders the scene in color and overlays the wireframe over the top.

• None: Display the normal view.
• Mip Streaming Performance: Use color to indicate which textures use mipmap streaming, and whether mipmap streaming limits the number of mipmap levels Unity loads.
• Mip Streaming Status: Use color on materials to indicate whether their textures use mipmap streaming. Diagonal stripes mean some of the textures use a requestedMipmapLevel that overrides mipmap streaming. Yellow means Unity can’t stream the texture, or the texture is assigned to terrain.
• Mip Streaming Activity: Use color to indicate whether Unity recently streamed the textures.
• Mip Streaming Priority: Use color to indicate the streaming priority of the textures. Set streaming priority for a texture in the Texture Import Settings window.
• Mip Count: Display the number of mipmap levels Unity loads for the textures.
• Mip Ratio: Use color to indicate the pixel density of the highest-resolution mipmap levels Unity uploads for the textures.

• None: Renders the scene normally and doesn’t validate any pixels.
• Highlight NaN, Inf and Negative Values: Highlights pixels that have color values that are NaN, Inf, or negative.
• Highlight Values Outside Range: Highlights pixels that have color values outside a particular range. Use Value Range Min and Value Range Max.

• RGB: Validates the pixel using the luminance value calculated from the red, green, and blue color channels.
• R: Validates the pixel using the value from the red color channel.
• G: Validates the pixel using the value from the green color channel.
• B: Validates the pixel using the value from the blue color channel.
• A: Validates the pixel using the value from the alpha channel.

This property only appears if you set Pixel Validation Mode to Highlight Values Outside Range.

This property only appears if you set Pixel Validation Mode to Highlight Values Outside Range.

The properties in this section let you visualize different Material properties.

• Albedo
• Specular
• Alpha
• Smoothness
• AmbientOcclusion
• Emission
• NormalWorldSpace
• NormalTangentSpace
• LightingComplexity
• Metallic
• SpriteMask
• RenderingLayerMasks

• Texcoord0
• Texcoord1
• Texcoord2
• Texcoord3
• Color
• Tangent
• Normal

The properties in this section let you visualize different settings and elements related to the lighting system, such as shadow cascades, reflections, contributions of the Main and the Additional Lights, and so on.

• None: Renders the scene normally without a debug overlay.
• Shadow Cascades: Overlays shadow cascade information so you can determine which shadow cascade each pixel uses. Use this to debug shadow cascade distances. For information on which color represents which shadow cascade, refer to the Shadows section of the URP Asset.
• Lighting Without Normal Maps: Renders the scene to visualize lighting. This mode uses neutral materials and disables normal maps. This and the Lighting With Normal Maps mode are useful for debugging lighting issues caused by normal maps.
• Lighting With Normal Maps: Renders the scene to visualize lighting. This mode uses neutral materials and allows normal maps.
• Reflections: Renders the scene to visualize reflections. This mode applies perfectly smooth, reflective materials to every Mesh Renderer.
• Reflections With Smoothness: Renders the scene to visualize reflections. This mode applies reflective materials without an overridden smoothness to every GameObject.

• Nothing: Shortcut to disable all flags.
• Everything: Shortcut to enable all flags.
• Global Illumination: Indicates whether to render global illuminationA group of techniques that model both direct and indirect lighting to provide realistic lighting results.
  See in Glossary.
• Main Light: Indicates whether the main directional Light contributes to lighting.
• Additional Lights: Indicates whether lights other than the main directional light contribute to lighting.
• Vertex Lighting: Indicates whether additional lights that use per-vertex lighting contribute to lighting.
• Emission: Indicates whether emissive materials contribute to lighting.
• Ambient Occlusion: Indicates whether ambient occlusionA method to approximate how much ambient light (light not coming from a specific direction) can hit a point on a surface.
  See in Glossary contributes to lighting.

The properties in this section let you change how the render graph system works.

These settings make it possible for you to visualize Adaptive Probe Volumes in your Scene, and configure the visualization.

• SH: Display the spherical harmonics (SH) lighting data for the final color calculation. The number of bands depends on the SH Bands setting in the active URP Asset.
• SHL0: Display the spherical harmonics (SH) lighting data with only the first band.
• SHL0L1: Display the spherical Harmonics (SH) lighting data with the first two bands.
• Validity: Display whether probes are valid, based on the number of backfaces the probe samples. Refer to Fix issues with Adaptive Probe Volumes for more information about probe validity.
• Probe Validity Over Dilation Threshold: Display red if a probe samples too many backfaces, based on the Validity Threshold set in the Adaptive Probe Volumes panel. This means the probe can’t be baked or sampled.
• Invalidated By Adjustment Volumes: Display probes that a Probe Adjustment Volume component has made invalid.
• Size: Display a different color for each size of brick.
• Sky Occlusion SH: If you enable sky occlusion, this setting displays the amount of indirect light the probe receives from the sky that bounced off static GameObjects. The value is a scalar, so it displays as a shade of gray.
• Sky Direction: Display a green circle that represents the direction from the probe to the sky. This setting displays a red circle if Unity can’t calculate the direction, or Sky Direction in the Adaptive Probe Volumes panel is disabled.
• Probe Occlusion: Displays whether probes are affected by lights that have their Light ModeA Light property that defines the use of the Light. Can be set to Realtime, Baked and Mixed. More info
  See in Glossary set to Mixed, if you set Lighting Mode to Shadowmask. Each probe displays up to four overlapping lights.

Use the following properties to control how URP streams Adaptive Probe Volumes. Refer to Optimize loading Adaptive Probe Volume data for more information.

Use the following properties to control how URP blends Lighting Scenarios. Refer to Bake different lighting setups with Lighting Scenarios for more information.

Add controls to the Rendering Debugger in URP

Graphics performance and profiling in the Built-In Render Pipeline

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