FAQ

General: How do I apply for a trial?
There are two ways to apply for a trial:
1. Go to the DJI Modify page on the DJI official website, click "Free Public Beta," follow the instructions for filling in the information, and then submit your application.
2. Visit the following link, follow the instructions for filling in the information, and submit your application.; How do I activate the DJI Modify license?
For First use:
1. When you launch DJI Modify for the first time and log into your DJI account, an activation pop-up will appear.
2. Enter the activation code in the pop-up to activate DJI Modify.

For Second Use:
1. Click on the avatar (User Center) in the upper right corner of the DJI Modify interface, then click "License Manager".
2. In the license manager pop-up, click "Activate More," and the activation pop-up will appear.
3. Enter the activation code in the pop-up to activate.; What are the system requirements for using DJI Modify?
1. Minimum Requirements: Windows 10 or later (64-bit) operating system with at least 32GB RAM. An NVIDIA graphics card with compute capability 6.1 or higher is required, with at least 4GB GPU memory and overall performance equivalent to or better than the NVIDIA GeForce GTX 1050Ti. The GPU driver version must be 522.25 or above.
2. Recommended requirements: Windows 10 or later (64-bit) operating system with at least 64GB RAM. An NVIDIA graphics card with compute capability of 7.0 or higher is required, with at least 8GB GPU memory and overall performance equivalent to or better than the NVIDIA GeForce RTX 2070. The GPU driver version should be 522.25 or above.
3. Additional notes: Please ensure that your display is connected to the NVIDIA graphics card when using DJI Modify; otherwise, the software may lag or not perform optimally. If you are using a laptop where the default display is set to the integrated GPU, please configure your system to prioritize the discrete graphics card in the official NVIDIA driver settings.
4. Currently, DJI Modify is not compatible with operating systems other than Windows, such as macOS and Chinese domestic operating systems. It is also not compatible with non-NVIDIA graphics cards, such as AMD or Chinese domestic graphics cards.; Can DJI Modify be used without an internet connection?
No. Using DJI Modify requires a network license, so a constant network connection is needed during the operation.; Does the DJI Modify license allow for unbinding?
The paid version of DJI Modify supports unbinding. For a license that supports only one device, one unbind is allowed per calendar year. For a license that supports multiple devices, two unbinds are allowed per calendar year. Each unbinding operation will unbind all devices associated with the license, so please proceed with caution.
The trial version of DJI Modify does not support unbinding.; Does DJI Modify support models from third-party modeling software?
Currently, no. DJI Modify can only edit visible light 3D models reconstructed with DJI Terra V4.0.0 or higher.; After creating a new project in DJI Modify, can I move, copy, or rename the modelling result folders created by DJI Terra?
Currently, no. Renaming the modeling results in DJI Terra will prevent DJI Modify from being able to edit the model.; After creating a new project in DJI Modify, can I move the project's folder?
Yes, but the moved project will not be displayed in the project list. You will need to import the project into DJI Modify again.; Why do I get a file missing notification when importing a renamed task created by DJI Terra into DJI Modify?
Please avoid changing the task names in DJI Terra to prevent inaccessible models and other files.
3D Mesh Editing: What are high-quality and low-quality models?
High-quality models, typically in ply or obj formats, are used for small-area adjustments such as flattening, hole filling, and texture repair.
Low-quality models, often in b3dm or osgb formats, are used for large-region adjustments like floating parts removal and water surface repair.; What should I do if a prompt about insufficient memory or video memory appears when loading high-quality models?
The prompt implies that the computer's capacity is limited and cannot load an unlimited number of high-quality models. It will appear when too many blocks are loaded. Consider the following measures:
1. It is recommended to use DJI Terra's block splitting function, and customize the edge lengths up 300×300 m.
2. Unload some of the loaded high-quality model blocks before loading new ones.
3. Save the current operation, exit the software and reopen it. Then try loading new blocks.; Why do new floating parts appear after I select and delete visible ones and then zoom in on the model?
The floating part removal function currently operates on a “what you see is what you get” basis, which only eliminates the floating parts that are visible in the current view. As you zoom in on the model, model blocks get updated, and previously unseen floating parts will then be displayed.
Recommended workflow: select all floating parts> deselect the ones to keep > delete, so as to keep the larger visible floating parts and remove the others.; Is it possible to customize the water surface texture?
Currently, no. You can fine-tune the water surface texture in Repair mode following the water surface repair.; Why are flattened meshes not parallel to the ground after using the flattening function?
The current flattening function flattens the selected region based on the surrounding meshes, creating an approximately flat surface, rather than flattening them to the ground.; Why are some vehicles in the model not recognized?
Vehicle recognition works best at a near-top-down view at an appropriate height. For optimal vehicle selection, adjust the view to an approximately top-down angle. You can also adjust the selected region using the Add to Selection and Subtract from Selection tools.; Why are there sometimes gaps at the edges when performing cross-block flattening?
When DJI Modify flattens multiple blocks, it processes each block independently, which might result in height discrepancies between blocks.; How can I quickly cancel a selection?
While drawing a selection, you can click the Unselect button on the interface or press the ESC key to cancel the current selection.; Can hole fill be done across multiple blocks?
For closed holes, hole filling can span across blocks.
For non-closed holes, which refer to partial areas of a hole manually selected by the user, cross-block filling is not supported.; Why is the texture a solid color after hole filling?
DJI Modify will use a solid color for the hole filling when it cannot access the aerial images from aerotriangulation results of the region ensuring that the aerial images from aerotriangulation results are readable for texture repair.; What should I do if the texture after hole filling doesn't meet my expectations?
You can modify the texture using the Repair tool.; Why are some holes in the walls not recognized? How should I handle this?
Holes in wall surfaces might structurally resemble “tunnels” in mesh topology, which are not recognized as holes by DJI Modify.
To address this, use the Custom tool in conjunction with the Subtract from Selection function to select the surface of the tunnel-like structure for hole filling.; What does render mean?
Different editing tools in DJI Modify apply to either high-quality or low-quality models, and the process called “rendering” in modeling and film industries is essentially synchronizing the modifications across both types of models in DJI Modify.; Why does the model export speed vary, being quick sometimes and slow other times?
The export speed depends on whether you've performed model editing operations. If so, DJI Modify needs to perform a rendering process; if not, it directly exports the model, which is faster than rendering.; Why am I getting an automatic save notification if I never manually saved?
DJI Modify uses an auto-save strategy, which executes auto-saves upon exiting a project, unloading high-quality models, and before rendering and exporting model to be exported to prevent potential progress loss.; Why can I sometimes perform multiple undos, and other times only one?
DJI Modify supports multiple undos for low-quality models, with a default maximum of 30 undos that adjust according to available computer memory.
For high-quality models, if no mesh adjustment has been made, the rules for undos are the same as for low-quality models; however, if any mesh adjustments have been made, the default number of undos is one.; What is a historical version in Version History?
A historical version is a backup of your current project at a particular point in time.; When does DJI Modify create a historical version?
DJI Modify automatically saves a version before rendering whenever the user starts a rendering process.; Which model formats does DJI Modify support for export?
Upon clicking export, DJI Modify defaults to exporting the 3D model in b3dm, osgb, ply, obj, and s3mb formats.; What coordinate system do models exported from DJI Modify use?
The coordinate system of a model exported from DJI Modify is consistent with that upon import. However, DJI Modify does not currently support 3D models that had their coordinate systems adjusted through seven-parameter transformations.; Is it possible to extend the cloud storage space offered by DJI Modify?
Currently, no.; Where are the models stored after being uploaded to the cloud by DJI Modify?
Model data from the Chinese mainland is stored on servers located within the Chinese mainland. Model data from other countries/regions is stored on US servers.; Does DJI Modify include coordinate information when uploading models to the cloud?
Coordinate information is removed before uploading models to the cloud through DJI Modify.; What block settings should I use when modeling in DJI Terra for the optimal model editing results?
For ordinary scenarios, it's recommended to customize the block size under the settings “3D Model > Advanced Settings > Region of Interest (ROI)/Block > Block Splitting Options” with sides smaller than 300×300 m.
For circle or close-range scenes, there's no need to adjust block splitting settings.; How do I view the model in DJI Modify?
Press and hold the scroll wheel of the mouse to rotate the model; press and hold the right mouse button, or hold down the spacebar and press and hold the left mouse button to drag the model.
Point Cloud Model Editing: Why is Quick Selection unavailable?
To enable Quick Selection, you need to perform Smart Filter. There are three ways to access Smart Filter:
1. When creating a new project;
2. After entering a project, by clicking Reclassification next to ASPRS Class;
3. Through the pop-up prompt text.; I've already classified the data. Why is Quick Selection still unavailable?
Ensure you have performed Smart Filter rather than Terrain Filter.; What do the IDs for each category mean under Smart Filter?
They are the ASPRS Class category IDs.; How do I enable the profile view?
Click Profile at the bottom of the interface.; What is the function of tolerance setting?
More points will be selected from the point cloud.; Why does nothing seem to happen when I click Single Selection?
Single Selection is designed to select a single point at a time for precise editing. You may need to zoom in to see the selection effect clearly.; What does the number next to each category in ASPRS Class represent?
It indicates the number of points in that category.; Will ground point classification overwrite existing classification results?
Yes, it will overwrite them. A pop-up warning will appear when you initiate ground point classification. Please proceed with caution.; How can I view DEM results?
Currently, DEM results cannot be displayed within DJI Modify. You can open the DEM output folder and view the results using third-party software.; Can TIN results be colorized?
Yes, you can enable the Color by Elevation option for TIN results.; What is the maximum size for a single LAS file that can be imported?
DJI Modify currently supports importing a single LAS file with up to 4.2 billion points. If your LAS file exceeds this limit, please split it into smaller files before importing.; How does the maximum supported LAS file size relate to available memory?
32GB Available RAM: Up to 15GB original point cloud editable
64GB Available RAM: Up to 30GB original point cloud editable
128GB Available RAM: Up to 60GB original point cloud editable; Why is the minimum supported point cloud density interval set to 0.5 meters?
Sparse point cloud will affect classification and smart selection.
For distance-based settings, default is 10 cm (range: 1 to 50 cm).
For percentage-based settings, default is 50% (range: 10 to 100%).
For even sparser point clouds, use the percentage-based settings.; What's the difference between Smart Filter and Terrain Filter?
Smart Filter: More suitable for city and multi-building scenes. Currently supports Ground, Vegetation, Building, Power Line, Electric Tower, Dynamic Object, and Vehicle categories. Classification results will overwrite existing classifications in point cloud file. When point cloud density is low (average distance between points is greater than 20 cm) or point cloud is too thick, classification performance may be poor. For unsatisfactory classification performances, use tools like Smart Selection to refine results.
Terrain Filter: More suitable for quickly extracting ground points and retaining more low points. For unsatisfactory classification performances, use tools like Smart Selection to refine results.; What is the function of Tolerance setting for structure selection?
Tolerance adjusts the effectiveness of smart selection. If point cloud contains excessive noise, it can impact effectiveness of smart selection
Ground, Roof, Vertical Surface: Increasing tolerance can improve the selection accuracy for uneven surfaces
Wire: Increasing tolerance can improve the selection effectiveness for sparse or thicker wires
Pole: Increasing tolerance can improve the selection effectiveness for thicker poles
Other: Increasing tolerance can improve the selection of more point clouds with similar structures. If the point cloud contains excessive noise, this type is recommended.; What is the function of Tolerance setting for color selection?
Color selection allows you to quickly select point clouds with the same or similar colors. Reducing tolerance allows for the selection of point clouds with more similar or even identical colors. Increasing tolerance allows for selection of point clouds with color differences within a certain range.; What point cloud formats can be exported?
DJI Modify supports exporting point clouds in LAS 1.2, LAS 1.4, PNTS, PLY, PCD, and S3MB formats. Note that PLY, PCD, and S3MB formats do not support ASPRS classification information.
Please note that ASPRS LAS 1.2 specification only supports classes up to 32. Point clouds with class exceeding 32 will be reset to Class 1.