unl-digifab
Week 8 - 3D Scanning
| Tuesday | Thursday |
Tuesday
- Artist of the Day
- 3D Scanning
- 3D Scans in Rhino
- Rhino for 3DP
- Bonus: Meshmixer
- Homework
- Office Hours this Week
Artist of the Day
Paul McCarthy
- White Snow
- Heigh-Ho, Heigh-Ho, I Mistrust Paul McCarthy’s Snow White Sculptures (But I’m Not Saying Don’t Go), The Stranger, Seattle, WA 2016.
3d Scanning
- Two main techniques: photogrammetry and LIDAR
- Photogrammetry
- LIDAR / 3d scanning (with laser)
- ArTec scanner at NIS.
- Examples of room scans (Twomey)
- Simple solution, phone/tablet apps.
- Polycam https://poly.cam - does both photogrammetry and LIDAR
- Scandy Pro https://www.scandy.co/apps/scandy-pro - can use the front facing lidar camera (FaceID) on iphone/tablet to do detailed scan.
- Other approaches?
- Strengths and limitations of various approaches.
- Hands-on.
3D Scans in Rhino
- Really just working with Meshes.
Homework
** Project 2 Proposal **
Office Hours
Thursday
Agenda
Artist of the Day 2
Robert Twomey and Mike McCrea, Rover
OR
Tivon Rice Environment Built for Absence
Photogrammetry
- Autodesk ReCap: https://www.autodesk.com/products/recap/
- Agisoft Metashape: https://www.agisoft.com/
- Colmap: https://colmap.github.io/
- OpenDroneMap: https://www.opendronemap.org/
Cleaning Meshes
- MeshMixer
- Mac download link
- replaced by Fusion 360 as of 2021.
- MeshLab - hardcore research grade
Homework 2
Scan Big Print Small Using the ipad pro with Polycam or your own device, digitize a real world object. Think big: the rear camera LIDAR is best body to room scale. Photogrammetry is ok for a range of sizes. Here we will play with scale:
- Scan something big
- Share the mesh with yourself (AirDrop, email, or some other means to get it off of the iPad)
- Clean up the mesh in Rhino.
- Print it at (small) scale (< 3x3x3”)
Submission
- Document the scan with screenshots in Rhino.
- Document the printed object with photographs.
- Add these materials to your digital sketchbook and upload the new pages as a pdf.
Reference
- [TK]