Photogrammetry

Dozens of cones arranged in a sphere around a cube in the centre.

This session demonstrates how to use a series of photos to generate a 3D model. Through photogrammetry we will output 3D models of an Object / Interior space / Exterior space.

Commands and links

scandy.co

agisoft.com

Photogrammetry checklist

‍

Agisoft Metashape Workflow

1. Add Photos - Keep these in one labelled folder.
2. Align Photos - This process estimates camera locations within a 3D space.
3. Build Dense Cloud - Adds further data to the cloud of points.
4. Build mesh - Connects points of our dense cloud to create a mesh.
5. Build Texture - The original images are merged and wrapped around our mesh to create a photorealistic model/space. 6. Export – .obj format
7. Import – Rhino

‍

Rhino Commands for editing the mesh

Scale
‍Scales in all directions uniformly‍

Rotate3d
Rotates along our desired pivot point

Rotate
Rotates in the orientation of our current Cplane

Mesh
Turns a Surface/Polysurface into a mesh

MeshSplit
Splits a mesh (You can split a mesh with another mesh)

MeshRepair
An automation tool for fixing errors in meshes within Rhino

‍

‍Agisoft & Scandy output supporting file ‘Giraffe_Photogrammetry_OUTPUT’

Full list of commands available at McNeel.com