Lumion 2025 introduces the Performance Center: a sleek, modernized version of the classic Performance Monitor, designed to offer deeper insights on hardware resource utilization and direct access to Editor settings.

It is a quick and intuitive way to analyze scene complexity at a glance and fine-tune performance settings on the go (based on your hardware), making sure Lumion runs as smoothly as possible for a seamless and enjoyable scene-building experience.

1. How it works:

The old Performance Monitor icon has been replaced with a color-coded speedometer that also shows the current FPS (frames displayed on screen per second). We recommend keeping the gauge as high as possible while building your Scene and setting up Photos, Clips, or Panoramas to avoid overtaxing your hardware, which can cause Lumion and your work to slow down.

Here's what each color means:

1.1: Red 

Will be displayed if the current scene is running at 0-11 FPS. This is an uncomfortable performance level to work with and means your system is running very low on memory or the Scene is too complex for your hardware. In other words, the Scene requires more memory to run than what's available in your graphics card, or from it's performance capability.

Consider closing other applications and following the article below to optimize the scene, or use a PC with more available video memory to avoid instability, crashes or very slow rendering times:

• Knowledge Base:  How can you improve performance within Lumion? 

1.2: Orange - Yellow

Will be displayed if the current scene is running at 12-21 FPS. This is a much smoother frame rate and means the system is stable. Performance can be further increased by reducing Editor Resolution settings or disabling heavy Effects. 

1.3: Green

Will be displayed if the scene is running higher than 22 FPS. We recommend keeping the gauge at this level for an optimal scene-building experience. You can achieve this by keeping the complexity of your scene to a level that is suitable for your hardware:

• Knowledge Base: How do you Determine the 'Complexity' of your Projects

2. Compact Performance Center:

Hovering the cursor over the speedometer icon on the top right of the screen will bring a compact version of the Performance Center.

Which displays the following:

2.1: GPU and CPU Utilization graph

The color-coded graph will show higher values when the CPU and GPU are busy. 
The lower grey/brown is the CPU utilization.  That should usually stay more constant as most work is done on the GPU.  Higher CPU utilization may occur when importing models, using the AI Upscaler, and some interim tasks.

The upper blue is the GPU utilization. You will notice it fluctuates when you change Modes, change camera views, or add more content to your Project.  And overall, increase the demand to run in real time.

2.2: VRAM (graphics card memory consumption)

This shows how many GB of graphics card memory are being used by Lumion with the current Project. A higher percentage means there's less memory available, which will result in a slower performance.
Upon reaching 90% or higher, Windows may have to borrow system memory (RAM) to keep things running, and performance and render times will drastically slow down. Restarting Lumion may be required to go back to a smooth performance.

If you constantly reach this level while working on your Projects, consider upgrading your hardware:

• • Knowledge Base: What kind of computer does Lumion 2025 need?
    
  • Knowledge Base: Which graphics card do you need for Lumion 2024 and 2025?

2.3: Vertex count [Vertices]

This is similar to the old 3D Point count, but is now much more accurate. A higher vertex count means the scene's models have more polygons and are more complex, requiring more video memory to render. If this number is very high, you may want to hide Objects in Layers, use Proxies, or reduce the complexity of your models to avoid slowdowns:

• • Knowledge Base: How do you reduce the complexity of a model before importing it in Lumion?
    
    
    

2.4: Scene object breakdown

Shows how many Objects of each category are on the scene. The number of Fine Detail Nature Objects is particularly important as larger quantities can impact performance greatly.

3. Expanded Performance Center:

Clicking on the gauge button in Build Mode will expand the Performance Center and show additional information, as well as provide direct access to the Image settings:

Additional information:

3.1: Editor Resolution

This shows the current size of the Lumion Window (in pixels).

3.2: Memory Usage

This shows how much system memory (RAM) your PC is currently using. While Lumion primarily relies on your GPU to render scenes in real-time, your RAM plays a crucial role when loading models, textures, and Projects into memory. The more RAM you have, the larger and more detailed your Project can be without slowdowns or crashes.
High RAM usage can also occur when multitasking, especially if you have many browser tabs open, other design software running, or background apps consuming memory. If your system runs out of available RAM, Windows will start using virtual memory (your hard drive), which significantly reduces performance.
For the best experience, we recommend having Memory usage below 90% by keeping background apps to a minimum while working in Lumion.

Settings:

3.3: Quality

These options will adjust certain visual settings to improve performance:

Low ★ (shortcut: F1 )

- All shadow types are disabled.
- Playback of video texture is paused.
- No Emissiveness glow for Materials.
- Ray Tracing resolution in real-time preview is limited to 50%.

Medium ★★ (shortcut: F2 )

- Shadows are displayed in lower quality.
- OmniShadows are disabled.
- Playback of video texture is paused.
- No Emissiveness glow for Materials.
- Ray Tracing resolution in real-time preview is limited to 60%.

High ★★★ (shortcut: F3)

- Playback of video texture is paused.
- Ray Tracing resolution in real-time preview is limited to 67%.

High ★★★ (shortcut: F4)

- Highest quality level, everything is enabled.
- Playback of video texture occurs.
- Ray Tracing resolution in real-time preview is not limited.

3.4: Resolution

This setting adjusts the resolution of the Editor. Lower settings will improve performance at the cost of visual fidelity. Resolutions lower than 100% use real-time GPU upsampling technology to reduce the amount of loss of detail but may cause ghosting. 

3.5: Use Proxies

This setting will temporarily replace models with wireframe boxes when the framerate is low to increase performance:

• On: Will replace models with proxy boxes when the FPS is low. 
• Auto: Same as above, but only while the camera moves.

See Also:

• Knowledge Base: How can you improve performance within Lumion?
• Knowledge Base: How do you Determine the 'Complexity' of your Projects
• Knowledge Base: How can you reduce rendering times?