How to Convert Multiple RAW Images to U3D?
1. Download and Install reaConverter
reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Built-in editing tools let you resize, crop, or watermark as you convert.
2. Load your RAW files
Add your RAW files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.
3. Select U3D as output format
Set U3D as output format and select where to save your converted files. Customize quality settings if needed.
4. Start RAW to U3D conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.
When finished, your new .u3d files will be waiting in the destination folder.
RAW to U3D: what carries over and what does not
RAW files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to U3D bakes those decisions into the pixels, and highlight recovery is no longer available afterwards. Set white balance and exposure before the run rather than after. RAW is made of pixels and U3D is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a U3D container, and that determines whether a CAD or design tool can work with it.
