13 May 2016
Friday fold: 3D syncline in Macigno Formation
Posted by Callan Bentley
Alan Pitts is the source of today’s fold, a beautiful 3D model of a differentially-weathered sycline in the Late Oligocene to Early Miocene deep water Macigno Formation from western Tuscany, Italy. Here’s a photo:
Now for the 3D model, hosted by Sketchfab; After it loads, use your mouse to grab this thing and finesse it around.
What an outcrop! What a great 3D model! Thanks for sharing this, Alan!
Be great to have a bit more info on how this model was created. Structure from Motion? Or laser scan with a photo drape?
Hi Doug – It’s generated in Agisoft Photoscan, with only a series of regular photos as inputs.
Hi Callan, following up on this: how many photos did you use? and any ground-control points?
Hi Doug –
I didn’t make it; Alan Pitts did. We use a process called photogrammetry, which relies only on a series of photos as inputs. No ‘ground control points’ are needed. I’m guessing Alan used about 30 photos.