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Documentation Index

Fetch the complete documentation index at: https://docs.3dpreppro.com/llms.txt

Use this file to discover all available pages before exploring further.

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Drag and drop

The fastest way to upload is dragging your files directly onto the upload area on the home dashboard or the My Models page. You can also click Browse to open a file picker.

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Upload progress

Each file shows a progress bar during upload. You can cancel individual uploads by clicking the X button on the progress card. When uploading multiple files, they process in parallel.

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Archives

Upload ZIP, RAR, or 7Z archives and we automatically extract them. We find and process the 3D files inside, including any associated texture and material files.
For OBJ files, the best approach is to ZIP the .obj file together with the .mtl file and all texture images (.png, .jpg). This ensures colors and textures are preserved.

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Special file types

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Medical imaging (DICOM)

When you upload DICOM files (.dcm), a configuration dialog appears after upload.
DICOM configuration dialog with segmentation presets
You can configure:
  • Segmentation preset — Choose from Standard, Head, Simple, or Dense Only
  • Segment definitions — Add or remove body segments with custom names, colors, and density ranges
  • Density threshold — Control what tissue density appears in the reconstruction
Click Start Analysis to begin converting the DICOM data into a 3D mesh.
Maximum file size is 8 million polygons per upload. For larger models, reduce the polygon count in your modeling software before uploading.