During the 3D scanning process, the material and surface characteristics of an object directly affect both scanning success rate and data accuracy. In particular, black, reflective, and transparent objects require targeted scanning strategies in order to obtain high-quality 3D data.

1. Black Objects

Black materials have very strong light absorption properties. This means that when the laser is projected onto the object surface, most of the light is absorbed rather than reflected back to the scanner. As a result, the reflected signal becomes weak, making it difficult for the scanner to capture sufficient point cloud data.

• Light Source Mode Selection: When high accuracy is required, it is recommended with [Blue Laser or Infrared Laser + Markers] scanning modes to improve scanning efficiency and data quality. If data accuracy requirements are relatively low — for example, when scanning car floor mats or trunk interiors — the [Infrared Speckle + Hybrid Alignment] mode is recommended for better scanning performance.
• Scanning Parameter Adjustment: Increase the laser brightness appropriately to strengthen the reflected signal. A recommended laser brightness setting is 7 or higher.

(When the laser brightness is set to 2, the laser lines in the depth camera appear underexposed.)

(When the laser brightness is set to 7, the laser lines in the depth camera appear overexposed.)

• Additional Method: Apply a thin and even layer of matte scanning spray to the object surface.

2. Reflective Objects

Reflective objects (such as metal surfaces or glossy painted parts) tend to reflect laser light directly back to the scanner. Excessively strong laser brightness can easily cause severe noise, stray points, and flying lines, which negatively affect scan quality.

• Light Source Mode Selection: It is recommended to prioritize the [Blue Laser + Markers] scanning mode to improve scanning efficiency and data quality.
• Scanning Parameter Adjustment: Increase the laser brightness appropriately to enhance the reflected signal, while monitoring the laser line brightness displayed in the depth camera and adjusting it in real time to avoid excessive brightness.

(When the laser brightness is set to 2, the laser lines in the depth camera appear relatively dim.)

(When the laser brightness is set to 7, the laser lines in the depth camera appear at an appropriate brightness level.)

(When the laser brightness is set to 15, the laser lines in the depth camera become excessively bright, and stray points and flying lines begin to appear in the scan data.)

3. Transparent Objects

Transparent materials such as glass, acrylic, resin, and crystal have high light transmittance. Since the laser can easily pass through the surface without forming effective reflections, the scanner is unable to capture stable point cloud data.

• Operation Method: Apply an evaporative scanning spray to the object surface (examples of scanning spray types are shown below and can be selected according to actual needs), temporarily turning the transparent surface opaque for scanning.
• Precautions: The scanning spray should be applied evenly to avoid excessive thickness that may cover fine details. Scanning should be performed immediately after spraying and before the coating evaporates. Spraying should also be carried out in a well-ventilated environment.

(Comparison of the transparent water bottle before and after applying scanning spray.)

approximately 4h   approximately 24h   approximately 12–24h

(Comparison of evaporation times for different types of scanning sprays.)