Statistics

A reference for understanding scene Statistics in Twinmotion.

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Twinmotion is a real-time rendering application. This means that you can interact with, modify, and navigate models and scenes, then view the results immediately, without having to wait for a long rendering process. As this requires a lot of computing power, it can be useful to monitor your machine's performance and view statistics about various aspects of the scene you are working in.

Viewing statistics can help you troubleshoot and identify where problems might be occurring. For example, if the frame rate is too low and navigation in the Viewport is slow, it might be because of too many textures or objects in the scene. This information, and more, can be found in the Statistics, which are located in the bottom area of the Scene graph panel.

The Statistics

Statistics in the Scene graph panel

Opening Statistics

  1. Open the Scene graph panel by clicking the Arrow icon in the upper-right corner of the Viewport.

  2. Click the title of the lower section to open the menu, and select Statistics.

Statistics Reference

The following table provides a description of the statistics.

Statistic

Description

FPS

Specifies the frame rate of the scene in the Viewport in frames per second (fps).

The frame rate measures the number of frames displayed on the screen each second to render the scene in the Viewport. Higher frame rates result in smoother navigation, but require more computer power consumption. Lower frame rates require less power consumption, but can result in delays and lags when navigating in the scene.

Values above 30 fps are optimal for smooth navigation. If the fps value is between 25 and 30, navigation can become laggy. Values below 25 fps most likely result in laggy navigation

To improve performance and lower power consumption, you can limit the frame rate to match your screen's refresh rate. To do this, in Preferences > Settings, select the Activate checkbox under Vsync.

GPU

The usage percentage of the Graphics Processing Unit (GPU).

Lowering the rendering Quality settings (in Preferences > Quality) can help reduce the GPU usage percentage. However, lowering the Quality settings also lowers the rendering quality of the scene in the Viewport.

Notifications about the memory usage of the GPU are also provided. For more information, refer to GPU RAM Diagnostics.

CPU

The usage percentage of the Central Processing Unit (CPU).

As Twinmotion is a GPU-based application, the CPU's usage percentage should be lower than the GPU's usage percentage. However, if the usage percentage of the CPU is close to 70%, performance issues in Twinmotion can arise.

File loading time

The time it took for Twinmotion to open the scene.

Loading times can vary depending on the complexity of the scene.

Values are expressed in seconds.

Polygons

The total number of polygons used for all models and objects in the scene.

A lower polygon count requires less computing power to render the scene in the Viewport.

Objects

The total number of objects in the scene.

The Starting Ground in the Twinmotion scene is counted as an object.

Textures

The global size of all the textures used in the scene.

This includes the textures added manually to objects in the scene, and any textures included in imported assets or already present in the model or scene.

Values are expressed in gigabytes (GB).

Last image render time

The time it took to render the last image exported.

Rendering time can vary depending on the complexity of the scene and the Renderer settings.

Values are expressed in seconds.

Last video render time

The time it took to render the last video exported.

Rendering time can vary depending on the complexity of the scene and the Renderer settings.

Values are expressed in seconds.

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