Doll Head

2 Sense scans aligned in MeshLab

Imported into Zbrush

Use Dynamesh and ZRemesh to lower the polycount and close the holes.

File Formats

Sense For RealSense

Exports OBJ and MTL, PLY, STL, VRML

Saves as OBJ by default. You can load this into ReCap Photo and edit; save out as FBX maybe.

Autodesk ReCap Photo

Load Sense 2 Scan data into Autodesk ReCap Photo to clean up or view. But you can’t add more than one file at a time, so you can’t combine meshes.

FBX imports into Zbrush (with a Plugin) and is apparently superior to OBJ because there is no need to separately load textures.

Compare Mask Scans

Sense 2 scans save as OBJ with associated material MTL and JPG files; you can also export as PLY, STL and VRML. There are 5 Sense scans of the African mask, numbered 01, 02, 04, 05 and 07.

Photogrammetry

Recap Photo + Canon Powershot 200

Messed up geometry on the side

Sense Scan 01

01 in Sense for RealSense scanner software

01: in Zbrush without textures: weirdly cube-like scan due to bounding box issues?

Sense 2 Scan in Zbrush

Mask at MMU Special Collections

Load and Textures

Conclusions so far:

• Sense 2 OBJ file and Texture Map load directly into Zbrush
• While loading, Zbrush can eliminate hundreds of floating unattached vertices painlessly in one click.
• Unattached trash mesh objects are also painless to eliminate.
• This has no negative effect on texture data mapping to the remaining mesh object.
• Sense 2 texture map can sharpen the scan mesh effectively when imported and applied as an alpha displacement map – stamped into the geometry.
• Sense 2 texture map also work well as a colour texture map.
• But colour has not made a good conversion to Polypaint in this case (geometry coarsened presumably res issue)
• Struggling to subdivide this mesh without crashing – wasn’t intending to but Polypaint res issue raised issue, though perhaps this is not the correct response.

Load OBJ into Zbrush

The Zbrush UI is confusing. (See beginners guide tutorial below.) Click Import on the top right to import an OBJ file. If everything goes wong, Control N for new canvas.

Import the OBJ file. It will give you the option to delete vertices which are not part of the main mesh. This is a good idea. Tool palette, right, is where you’ll find your model. They call a 3D model a tool. You’ll create an object using your brush immediately just by clicking and dragging on the screen.

Raw Sense Scan into Zbrush

Compare Scanners

3D Systems Sense 2

Costing around £500, 3D Systems’ Sense 3D handheld scanner resembles a video cassette. There are different versions with different specs:

https://softwaresupport.3dsystems.com/sense2-scanner/

• Sense 1 and 2 plug directly into a laptop using USB.
• Both state a depth resolution of 1mm at a distance of 0.5 meters.
• Both use infrared depth-sensing technology: the Sense 1 contains a PrimeSense Carmine 1.09, while the Sense 2 contains Intel’s SR300 depth sensor. https://www.intelrealsense.com/coded-light/

Ours must be a Sense 2 because it’s got the Intel logo. “RS” on the label must stand for RealSense.