3D Scanning for Architects

Kieran
Sagar
Parikh

date
summer + Fall 2020
info
Summer Project at Columbia GSAPP
tech
Photogrammetry, Rhino, Illustrator

How can photogrammetry be used as a tool for digital sketching in 3D? In this project, I use photogrammetry combined with human gesture to develop a sculptural form for an entryway to Kent Hall at Columbia University.

Introduction

Photogrammetry is a computational process whereby photos of an object taken from different angles can be used to reconstruct a 3D model of the object.

While a typical architectural design process might involve creating 2D sketches and building 3D models off of them, I wanted to experiment with sketching directly in 3D.

Design Problem

Kent Hall is a building on Columbia’s campus, directly adjacent to Amsterdam Avenue. However, to access the building from Amsterdam Ave, you would have to walk past the building, through the Columbia gates, and completely around the building to arrive at the front door.

My goal was to build a sculptural entryway and addition to the East Asian Library in Kent Hall, enabling direct access from Amsterdam Ave.

plan
isometric

Process

I envisioned this entryway as a rip in the fabric of Columbia’s deliberately exclusionary architecture, so I fabricated a severely distressed article of clothing using cotton and denim to use as a basis for the investigation of architectural form.

front view distressed clothes

Using Photogrammetry, I was able to create a 3D digital model of myself wearing the distressed article.

result of photogrammetry 3d scan

I used operations in Rhino to dissect and warp the model, ultimately settling on a form to use in my design.

process
process-2

Using Rhino, I inserted the form in my site model and transformed it to meet site requirements.

upclose
isometric

Once I was happy with the 3D model of my design, I was able to create 2D drawings.

Conclusion

In this project, I put myself in the shoes of an architect and explored how photogrammetry could be used as a creative tool in existing workflows.

This experience taught me that the best way to find applications for new technologies is by taking an empathetic approach, meeting users where they are and experimenting within existing workflows and paradigms.

upclose

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