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Tag : 3D model

13 Jan 2015

Car scanning with Photogrammetry

A new technique we have been working on for scanning full colour reflective objects using photogrammetry.

This is our second test and there is still a lot of room for improvement, objects with multiple reflective layers such as headlights are a problem as you can see from the mesh but we should be able to solve this in the coming weeks.

For the purposes of this test we deliberately chose the hardest possible car to scan, reflective white paintwork, multicolored livery and lots of pure black shiny plastic, a photogrammetry nightmare to say the least!

CarScan01

We’re using AGI PhotoScan to process over 480 images resulting in nearly 1,000,000 Tie points and a Dense point cloud of 168,000,000 points

AGI1

AGI-2   AGI-3  AGI-5

Once the scan is processed we end up with a fully textured 3D model consisting of about 11 million triangles, As I mentioned before there are still some issues with the lights and there is a lot of noise in and around hard to scan areas such as under the arches and along the bottom of the diffuser.

CarScan02

CarScan03

CarScan04

 

22 Feb 2013

Skin shading in Modo

Or resident Modo artist Ross Mansfield has been slowly converting us all to Modo. Having always used Lightwave 3D for rendering switching over wasn’t much of a problem. One thing that is immediately noticeable is the ease of which you can get incredible looking renders in little to no time. This is our first skin shader test, bearing in mind no one in the studio has ever used it for skin shading before this test took about 2 hours from start to finished. Simply incredible software!

We used one of our full body colour scans from the scan store as a test subject. with a few simple epidermal / subdermal / spec and bump maps we managed to achieve some great results

Modo Skin shading

 

Modo Skin shading