Access the Mapstore Interface

Oct 13, 2025 by wbrum.org 130 views

3dtiles Loading Speed Regression Since 2023.02: A Comprehensive Analysis

In recent updates to the 3dtiles project, a significant regression has been observed in the loading speed of 3dtiles datasets. This issue has been reported by users since the update from 2023.02 to 2024.02, with the latest build from fe581a2. In this article, we will delve into the details of this regression, its expected behavior, and the steps to reproduce the issue.

The regression in question involves a noticeable decrease in the loading speed of 3dtiles datasets. Specifically, with the 2024.02 release, loading a 3dtiles dataset takes approximately 60 seconds, resulting in around 2,000 requests for a total size of approximately 27 megabytes. In contrast, the same dataset loads in approximately 40 seconds with the 2023.02 release, with around 2,300 requests for a total size of approximately 30 megabytes.

To reproduce this issue, follow these steps:

Access the Mapstore Interface: Navigate to the Mapstore interface at https://ids.craig.fr/mapstore/.
Add 3dtiles Service: Add the 3dtiles service from the URL https://3d.craig.fr/datasets/bati3d_aura/63_clermont_auvergne_metropole/2024_building_part6/tileset.json.
Switch to 3D Mode: Switch to 3D mode in the Mapstore interface.
Add Layer: Add a layer to the Mapstore interface.
Zoom to Dataset Extent: Click on the "Zoom to dataset extent" button to load the 3dtiles dataset.

The expected behavior for the 3dtiles dataset loading process is to load the dataset in approximately 40 seconds, with around 2,300 requests for a total size of approximately 30 megabytes. This is the observed behavior with the 2023.02 release.

Desktop (Please Complete the Following Information)

Browser: Firefox 136 on Windows

The regression in 3dtiles loading speed since 2023.02 is a significant issue that affects the performance of the 3dtiles project. The observed behavior with the 2024.02 release is slower than expected, with a noticeable increase in loading time and requests. This issue has been reported by users since the update from 2023.02 to 2024.02, with the latest build from fe581a2.

To address this issue, further analysis and testing are required to identify the root cause of the regression. This may involve reviewing the code changes between the 2023.02 and 2024.02 releases, as well as testing with different browsers and environments.

Based on the analysis, the following recommendations are made:

Investigate Code Changes: Review the code changes between the 2023.02 and 2024.02 releases to identify potential causes of the regression.
Test with Different Browsers and Environments: Test the 3dtiles project with different browsers and environments to ensure that the issue is not specific to a particular setup.
Optimize 3dtiles Loading Process: Optimize the 3dtiles loading process to improve performance and reduce loading time.

By following these recommendations, it is possible to identify and address the root cause of the regression, resulting in improved performance and a better user experience for the 3dtiles project.
3dtiles Loading Speed Regression Since 2023.02: Q&A

In our previous article, we discussed the 3dtiles loading speed regression since 2023.02, a significant issue that affects the performance of the 3dtiles project. In this article, we will address some of the frequently asked questions (FAQs) related to this issue.

A: The 3dtiles loading speed regression refers to the noticeable decrease in the loading speed of 3dtiles datasets since the update from 2023.02 to 2024.02. Specifically, with the 2024.02 release, loading a 3dtiles dataset takes approximately 60 seconds, resulting in around 2,000 requests for a total size of approximately 27 megabytes.

A: The expected behavior for 3dtiles dataset loading is to load the dataset in approximately 40 seconds, with around 2,300 requests for a total size of approximately 30 megabytes. This is the observed behavior with the 2023.02 release.

A: To reproduce the issue, follow these steps:

Access the Mapstore Interface: Navigate to the Mapstore interface at https://ids.craig.fr/mapstore/.
Add 3dtiles Service: Add the 3dtiles service from the URL https://3d.craig.fr/datasets/bati3d_aura/63_clermont_auvergne_metropole/2024_building_part6/tileset.json.
Switch to 3D Mode: Switch to 3D mode in the Mapstore interface.
Add Layer: Add a layer to the Mapstore interface.
Zoom to Dataset Extent: Click on the "Zoom to dataset extent" button to load the 3dtiles dataset.

A: The system requirements for reproducing the issue are:

Browser: Firefox 136 on Windows
Mapstore Interface: Access to the Mapstore interface at https://ids.craig.fr/mapstore/
3dtiles Service: Access to the 3dtiles service from the URL https://3d.craig.fr/datasets/bati3d_aura/63_clermont_auvergne_metropole/2024_building_part6/tileset.json

A: The possible causes of the regression are:

Code Changes: Review the code changes between the 2023.02 and 2024.02 releases to identify potential causes of the regression.
Browser Issues: Test the 3dtiles project with different browsers and environments to ensure that the issue is not specific to a particular setup.
Optimization Issues: Optimize the 3dtiles loading process to improve performance and reduce loading time.

A: If you have encountered the 3dtiles loading speed regression issue, please report it to the project maintainers. You can provide detailed information about the issue, including the steps to reproduce it, the system requirements, and any relevant screenshots or logs.

The 3dtiles loading speed regression since 2023.02 is a significant issue that affects the performance of the 3dtiles project. By understanding the issue, its causes, and the steps to reproduce it, we can work together to resolve the issue and improve the performance of the 3dtiles project.