01.05 3D Scan Reconstruction and Remix Assignment

Assignment Deliverables

1. 3D Scan Remix Blender File
   • Clean, modify, distort, duplicate, combine, and/or sculpt human scan data into an original humanoid sculpture.
   • Label file YYYY-MM-DD Lastname Firstname Remix Sculpture (.blend)
2. Render image of remix
   • Label file YYYY-MM-DD Lastname Firstname Remix Render (.png, .jpg)

Note: You can upload a single .zip archive of all your files labeled inside the archive for easier submission to Canvas.

Assignment Overview

3D capture brings information from the physical world into a digital 3D environment. This project explores different methods of 3D capture including photogrammetry, 3D scanning.

Rather than treating a 3D scan as a finished object, you will use captured human geometry and other scan data as raw material for a new sculpture. Explore repetition, distortion, scale, proportion, combination, or other transformations rather than simply printing an unchanged scan.

After scanning a human head and potentially additional parts of the body as well as objects and environments, bring the scans into Blender , briefly clean the geometry, and transform it into an original remixed form. Stretch proportions, duplicate limbs, combine multiple body parts, enlarge or shrink features, remove sections, merge forms together, or sculpt directly into the scan.

Your final sculpture should clearly move beyond simply reproducing the scanned data. Use the strange possibilities of digital modeling to make a remixed form that would be difficult or impossible to construct in the physical world. Possible approaches include:

• Multiple arms, hands, heads, faces, or legs
• Extremely long or compressed proportions
• Oversized or miniature body parts
• Repeated or mirrored anatomy
• Limbs emerging from unexpected locations
• Combined scans from different people
• Intersecting or merged bodies
• Missing or simplified anatomy
• Distorted facial features
• Stretched, twisted, inflated, or flattened forms
• Boolean cuts and additions
• Sculpted transitions between scanned parts
• Abstract forms that still retain evidence of the human body

The goal is not to create a perfectly realistic digital human. The goal is to learn how captured geometry can be cleaned, manipulated, assembled, and fabricated as a new sculptural form.

• Successfully demonstrate the required 3D capture workflows.
• Preserve usable human scan geometry while removing unnecessary scanning artifacts.
• Make substantial and intentional changes to the original scanned body.
• Consider the sculpture as a three-dimensional form from multiple viewpoints.
• Use Blender tools purposefully rather than applying effects randomly.
• Produce geometry that is appropriate for physical 3D printing.
• Submit clearly labeled and organized digital files.

Process

Import and Inspect

Import your human 3D scan into Blender.

Before making major changes:

• Inspect the mesh from all sides.
• Delete obvious unwanted scanning debris.
• Remove large disconnected fragments.
• Fill or repair major holes when necessary.
• Check the overall scale.
• Save a copy of the original scan before modifying it.

Do not spend excessive time attempting to make the scan perfect. Small scanning errors can become part of the sculpture.

Remix the 3D Scan Data

Use the scan as raw material for a new sculpture. You may duplicate entire scans or separate parts of the mesh into different objects before modifying them.

Useful Blender Techniques

• Move
• Rotate
• Scale
• Duplicate
• Mirror
• Proportional Editing
• Separate
• Join
• Extrude
• Sculpt Mode
• Grab
• Smooth
• Inflate
• Boolean Union
• Boolean Difference
• Remesh
• Decimate
• Joining and separating meshes
• Sculpt Mode

You do not need to use every tool but your sculpture should use multiple intentional transformations that substantially change the original scan.

For example, you could duplicate both arms several times, stretch the torso vertically, enlarge the head, compress the legs, and sculpt the intersections between the parts into a continuous form.

Consider the Sculpture From All Sides

This is a three-dimensional sculpture rather than a single rendered image.

Rotate around the model frequently and consider:

• Silhouette
• Balance
• Proportion
• Repetition
• Symmetry and asymmetry
• Negative space
• Relationship between body parts
• Where the sculpture touches the ground
• How the form changes when viewed from different angles

Avoid making modifications that are only noticeable from the front. A highly detailed texture is not required for the final 3D print. At this stage, the geometry of the sculpture is the primary concern.

Assignment Resources

3D Capture Resources

Photogrammetry

• Photogrammetry
• RealityScan
• Photocatch

3D Scanning

• 3D Head Scanning Guide
• EinScan H Series Scanner Quick Start Guide
• EinScan Scanning Tips
• EinScan H Series Guides
• EinScan H2 Scanner

3D Mesh Cleanup and Modeling

• Scale Photogrammetry Mesh in Blender
• Clean Up Photogrammetry Mesh in Blender

Grading Rubric

Tutorials and Guides

RealityScan Mobile Photogrammetry Guides