关于在Autodesk Forge中转换并查看Recap RCP文件的问询

Great question—let's break this down clearly, since Recap's file structure can be tricky with Forge:

First, the short answer: Yes, Forge does support Recap point cloud formats, but you need to package your files correctly because RCP files alone aren't the actual point cloud data.

Why Your Attempts Failed #

The Extractor error code -1 (TranslationWorker-InternalFailure) usually means the Forge converter can't properly parse your input. Here's why your two attempts didn't work:

• Single RCP file: As you suspected, RCP is just a project/index file—it references the actual point cloud data stored in RCS files. Without those RCS files, the converter has no data to process.
• Packaged folder: If you zipped a folder containing both RCP and RCS files, the converter might not be able to find the RCP file if it's nested inside a subfolder. Forge expects the main RCP file to be at the root of the ZIP archive, not inside a subdirectory.

Correct Steps to Convert RCP/RCS Files in Forge #

Follow these steps to get it working:

1. Gather all related files: Make sure you have the RCP file and all associated RCS files (there might be multiple RCS files if your point cloud is large). Don't miss any auxiliary files that Recap generated alongside them.
2. Zip the files correctly: Place the RCP file directly in the root of the ZIP, with all RCS files alongside it (no nested folders). For example, your ZIP should look like this when opened:

   my_project.rcp
   my_project_part1.rcs
   my_project_part2.rcs
   ...
   

3. Validate the RCP file first: Open the RCP in Autodesk Recap locally to confirm it loads properly and all point cloud data is accessible. If it's corrupted locally, Forge won't be able to process it either.
4. Use ZIP format: Stick to standard ZIP compression—avoid RAR or other formats, as Forge's converter has best support for ZIP.

If You Still Encounter Issues #

• Double-check your API calls: Ensure you're using the correct URN for the uploaded ZIP, and that your Forge app has the necessary permissions for the Model Derivative service.
• Verify file sizes: If your point cloud is extremely large, you might need to check Forge's file size limits and consider splitting the point cloud if needed.

内容的提问来源于stack exchange，提问作者Jason Kroll