The initial unprocessed raw point cloud from the scan is a collection of individual data sets or frames. To create a high-quality 3D model, it must be fused, meshed, and textured (optional). This can be done using One-click Editing or manually editing the raw data.
¶ 1. One-click Edit
Revo Scan 5 MetroX has a powerful one-click processing feature that automatically performs fusion, meshing, and texturing (if a color scan was done) based on the best detected setting for the point cloud. Tap the “Apply” button to perform the “One-Click Edit” function. Click the “Cancel” button to cancel the process.
¶ 2. Manual Edit
In Manual editing, you can fully edit your raw point cloud data during every step of the process or edit imported 3D models from other sources.
¶ 2.1 Point Cloud Edit
Fusion
Fusion is fusing the raw scan data captured by the scanner into a unified point cloud model.
• Point Distance: The average distance between the adjacent points in a fused model. The software will suggest an optimal point distance for each scan, but different values can be specified depending on your requirements.
• Fusion Optimize: For objects with geometric features, detail performance can be significantly enhanced through fusion optimization. If you need to undo the optimization, click the undo button in the bottom right corner. Tap the “Apply” button to perform the “Fusion” function, and click the “Cancel” button to cancel it.
Point Cloud Isolation
 |
Detects and removes the isolated point cloud data disconnected from the main point cloud model (see the red area in the figure). Isolation Rate: The percentage of points within isolated point clouds relative to the total number of points. Setting a higher rate will detect more isolated point clouds. |
Point Cloud Overlap Detection
 |
Identifies and deletes overlapping data in the point cloud for a more consistent model. It can be used repeatedly to simplify point cloud data. Vertical Distance: The distance between the overlapped point cloud noise and the captured surface area. If it's less than the set value, it's considered noise and removed. If it exceeds the set value, it's not removed. |
Point Cloud Smooth
Removes noise from the point cloud to make it smoother.
To use it, select its strength and the number of times it applies smoothing consecutively.
Note: For feature-rich models, excessive smoothing may result in loss of details (see the figure below).
Point Cloud Simplify
Reduces the density of the point cloud and the amount of data for more manageable processing, storage, and sharing. There are two different downsampling methods:
• Uniform: Removes the set percentage of points across the model evenly.
• Geometric: Intelligently identifies flat or plain surfaces in the point cloud and will remove the set percentage of points from these areas while leaving more complex areas alone to maintain the details.
Ratio: The percentage of simplified point cloud data to the total amount of data. Setting a higher ratio will delete more point cloud data from the model.
Note： Selecting a too large ratio may impact the model's quality.
¶ 2.2 Mesh Edit
Mesh
A mesh is created by constructing triangles from the points in the point cloud to create a solid surface. The point cloud must be meshed before being used in most 3D modeling or slicing software.
• Quality: The mesh model’s density and level of detail. Setting a higher value results in a denser and more detailed mesh model but spends more time.
• Hole Filling (Auto): Revo Scan automatically identifies and fills all the holes on the mesh model.
• Ratio: The percentage of the hole diameter to the overall mesh size. The holes smaller than this ratio will be filled.
Note: The Hole Filling (Auto) function is for small holes. Use the Fill Holes tool in the mesh editing tab to fill larger holes.
Tap the “Apply” button to perform the “Mesh” function.
Mesh Isolation
Detects and removes the isolated mesh data disconnected from the main mesh.
Isolation Rate: The percentage of an isolated mesh relative to the total number of meshes. Setting a higher value will detect more isolated mesh data.
Fill Holes
Detects all holes on the model’s surface. Select the holes and fill them with a Plane or Curved surface.
Mesh Smooth
Removes noise from the mesh model to make it smoother.
To use it, select its strength and the number of times it applies smoothing consecutively.
Mesh Simplify
Reduces the mesh data in the model for more manageable processing, storage, and sharing.
Ratio: The percentage of simplified mesh data to the total data volume. Setting a higher ratio will remove more details, resulting in a smaller file size.
¶ 2.3 Texture
The Texture function is only available in Auto Turntable mode.
Texture is applying the color data captured by the RGB camera to the mesh to create a high-quality colored 3D model. There are two texturing methods:
Color Image
This method maps the image data captured by the scanner's RGB Camera on the mesh’s surface to create a colored model.
Vertex Coloring
This method generates textures from the mesh's vertices color.
Click the “Apply” button to perform the “Texture” function and click the “Cancel” button to cancel the process.
¶ 3. Model Merging
The merging function supports the alignment of multiple scans in a project into a new model. Please note that the scans can only be merged after they are fused. There are two alignment methods: Feature Alignment and Manual Alignment.
¶ 3.1 Feature Alignment
Select the models, and Revo Scan 5 MetroX will automatically merge them by identifying and aligning the overlapping features in multiple models. The overlapping area between any two models should be more than 10% (for best results, 40% to 50% is recommended). Up to 9 fused models can be selected and merged simultaneously.
¶ 3.2 Manual Alignment
At least 3 reference points must be manually placed in matching locations on each model. Then, Revo Scan merges the two models by identifying and aligning the reference points. Only 2 models can be merged at a time.
• The number of corresponding reference points on both models must be the same.
• Avoid grouping the markers together in a small area.
• Zoom in on the features of each model to place the marker points carefully.
¶ 4. Key Frames Edit
When using Full-field or Auto Turntable Scanning mode, use it to edit or delete the raw data before fusion. This tool can be used to go through captured point cloud data frame-by-frame and quickly find the misaligned or faulty frame for deletion.
 |
Key Frames Edit Tutorial Video Go to the project panel and click the icon or click the  icon > Key Frames Edit to enter the Key Frames Edit interface. There are two methods to edit the keyframes: |
1) Click the 
button to autoplay through the frames individually. Then, select any unwanted frames and click the 
button next to each frame’s name.
2) Enter the Key Frames Edit interface, and use any selection tool in the Tool Bar to select the unwanted data. The corresponding faulty frames will be automatically identified and selected. Click the button or the 
button to delete all the faulty frames.
¶ 5. Tool Bar
The Toolbar provides multiple tools for manually selecting unwanted local data for detailed editing or deletion.
Note: The Tool Bar can’t be used for raw data or textured models.
 |
Orbit Rotate the view in any direction. Clicking it will also de-select any previously selected areas. |
 |
Rectangular Selection Click and hold the left mouse button to draw a rectangle around any point on the model to select that area. |
 |
Polygon Selection Left-click to create anchor points to select a mesh's polygons (faces). The Polygon tool creates a straight line between each Anchor Point. Click on any edge of the area to be selected and release the mouse pointer to make an Anchor Point. |
 |
Lasso Selection Click and hold the left mouse button, then draw a shape around an area to select it. Release the mouse button, and the selection will be closed by connecting the current pointer location to the start location with a line. |
 |
Select Connection Left-click on a point or a data area, and the tool will automatically select the adjacent or connected points or areas. |
 |
Clip Position the cursor, click and hold the left mouse button, and drag. The clipping plane will appear as a line with an arrow. The portion of the model in the direction of the line’s arrow will be selected. Press <Delete> to apply the change, <Esc> to cancel. |
 |
Invert Selection Use the invert selection button to change the selected area from the currently selected area to anything that wasn’t selected. |
 |
Delete Use the invert selection button to change the selected area from the currently selected area to anything that wasn’t selected. |
 |
Select Through Used with Polygon Selection, Lasso Selection, etc. Enable it to select data right through the model. |
 |
Smooth Brush Place the cursor over a rough area (e.g., marker holes), then left-click or left-click and drag to smooth. |
 |
Undo Use to remove the scan data or revert the changes made to the model. |
 |
Redo Use to add back the scan data or the changes made to the model. |