Exclude collections from layers

Oct 13, 2025 by talynt.org 31 views

Introduction

Debugging low FPS issues in 3D applications can be a challenging task, especially when the viewport appears to be empty. In this article, we will explore the steps to identify and resolve low FPS issues even when the viewport seems to be empty. We will cover the process of isolating the problem, identifying the culprit, and implementing solutions to improve performance.

Understanding the Problem

When you notice a drastic change in viewport performance, it's essential to understand that the issue might not be directly related to the visible objects in the scene. The problem could be caused by various factors, such as:

Hidden objects: Objects that are not visible in the viewport might still be affecting performance.
Complex geometry: Even if an object is not visible, its complex geometry can still cause performance issues.
Materials and textures: Materials and textures applied to objects can also impact performance.
Scripts and animations: Scripts and animations running in the background can consume system resources and cause performance issues.

Step 1: Isolate the Problem

To debug low FPS issues, you need to isolate the problem and identify the specific area of the scene that's causing the issue. Here are the steps to follow:

1.1 Exclude Collections from Layers

As you mentioned, try excluding every collection from the layer and all the objects within it. This will help you determine if the issue is related to a specific collection or layer.

1.2 Disable Materials and Textures

Disable all materials and textures applied to objects in the scene. This will help you determine if the issue is related to materials or textures.

1.3 Disable Scripts and Animations

Disable all scripts and animations running in the scene. This will help you determine if the issue is related to scripts or animations.

1.4 Check for Complex Geometry

Check if there are any complex geometries in the scene that might be causing performance issues.

Step 2: Identify the Culprit

Once you've isolated the problem, it's time to identify the specific object or collection that's causing the issue. Here are the steps to follow:

2.1 Use the Profiler

Use the profiler to identify the object or collection that's consuming the most resources. The profiler will help you identify the specific object or collection that's causing the issue.

2.2 Use the Hierarchy Panel

Use the hierarchy panel to identify the object or collection that's causing the issue. The hierarchy panel will help you visualize the scene and identify the specific object or collection that's causing the issue.

2.3 Use the Outliner

Use the outliner to identify the object or collection that's causing the issue. The outliner will help you identify the specific object or collection that's causing the issue.

Step 3: Implement Solutions

Once you've identified the culprit, it's time to implement solutions to improve performance. Here are the steps to follow:

3.1 Simplify Complex Geometry

Simplify complex geometry by reducing the number of polygons or using a more efficient mesh.

3.2 Optimize Materials and Textures

Optimize materials and textures by reducing the number of textures or using a more efficient texture format.

3.3 Disable Scripts and Animations

Disable scripts and animations that are not necessary for the scene.

3.4 Use Level of Detail

Use level of detail to reduce the complexity of objects as they move away from the camera.

Conclusion

Debugging low FPS issues with an empty viewport can be a challenging task, but by following the steps outlined in this article, you can identify and resolve the issue. Remember to isolate the problem, identify the culprit, and implement solutions to improve performance. By following these steps, you can create a more efficient and performant 3D application.

Additional Tips

Here are some additional tips to help you debug low FPS issues:

Use the GPU Profiler: The GPU profiler will help you identify the specific object or collection that's causing the issue.
Use the CPU Profiler: The CPU profiler will help you identify the specific object or collection that's causing the issue.
Use the Memory Profiler: The memory profiler will help you identify the specific object or collection that's causing the issue.
Use the Network Profiler: The network profiler will help you identify the specific object or collection that's causing the issue.

Q: What are the most common causes of low FPS with an empty viewport?

A: The most common causes of low FPS with an empty viewport include:

Hidden objects: Objects that are not visible in the viewport might still be affecting performance.
Complex geometry: Even if an object is not visible, its complex geometry can still cause performance issues.
Materials and textures: Materials and textures applied to objects can also impact performance.
Scripts and animations: Scripts and animations running in the background can consume system resources and cause performance issues.

Q: How can I isolate the problem and identify the specific object or collection that's causing the issue?

A: To isolate the problem and identify the specific object or collection that's causing the issue, follow these steps:

Exclude collections from layers: Try excluding every collection from the layer and all the objects within it.
Disable materials and textures: Disable all materials and textures applied to objects in the scene.
Disable scripts and animations: Disable all scripts and animations running in the scene.
Check for complex geometry: Check if there are any complex geometries in the scene that might be causing performance issues.

Q: What tools can I use to identify the specific object or collection that's causing the issue?

A: You can use the following tools to identify the specific object or collection that's causing the issue:

Profiler: Use the profiler to identify the object or collection that's consuming the most resources.
Hierarchy panel: Use the hierarchy panel to visualize the scene and identify the specific object or collection that's causing the issue.
Outliner: Use the outliner to identify the specific object or collection that's causing the issue.

Q: What are some common solutions to improve performance and reduce low FPS issues?

A: Some common solutions to improve performance and reduce low FPS issues include:

Simplifying complex geometry: Reduce the number of polygons or use a more efficient mesh.
Optimizing materials and textures: Reduce the number of textures or use a more efficient texture format.
Disabling scripts and animations: Disable scripts and animations that are not necessary for the scene.
Using level of detail: Reduce the complexity of objects as they move away from the camera.

Q: How can I use the GPU Profiler to identify the specific object or collection that's causing the issue?

A: To use the GPU Profiler to identify the specific object or collection that's causing the issue, follow these steps:

Launch the GPU Profiler: Launch the GPU Profiler and select the scene you want to profile.
Select the object or collection: Select the object or collection you want to profile.
Analyze the results: Analyze the results to identify the specific object or collection that's causing the issue.

Q: How can I use the CPU Profiler to identify the specific object or collection that's causing the issue?

A: To use the CPU Profiler to identify the specific object or collection that's causing the issue, follow these steps:

Launch the CPU Profiler: Launch the CPU Profiler and select the scene you want to profile.
Select the object or collection: Select the object or collection you want to profile.
Analyze the results: Analyze the results to identify the specific object or collection that's causing the issue.

Q: How can I use the Memory Profiler to identify the specific object or collection that's causing the issue?

A: To use the Memory Profiler to identify the specific object or collection that's causing the issue, follow these steps:

Launch the Memory Profiler: Launch the Memory Profiler and select the scene you want to profile.
Select the object or collection: Select the object or collection you want to profile.
Analyze the results: Analyze the results to identify the specific object or collection that's causing the issue.

Q: How can I use the Network Profiler to identify the specific object or collection that's causing the issue?

A: To use the Network Profiler to identify the specific object or collection that's causing the issue, follow these steps:

Launch the Network Profiler: Launch the Network Profiler and select the scene you want to profile.
Select the object or collection: Select the object or collection you want to profile.
Analyze the results: Analyze the results to identify the specific object or collection that's causing the issue.

Conclusion

Debugging low FPS issues with an empty viewport can be a challenging task, but by following the steps outlined in this article and using the tools and techniques described, you can identify and resolve the issue. Remember to isolate the problem, identify the culprit, and implement solutions to improve performance. By following these steps, you can create a more efficient and performant 3D application.