JASON CROSSLEY
PROGRAMMER
Process
Studio Approach
During capturing stage, I rotate the subject on the turntable via rope 16 approximately-even increments in order to get complete coverage of the object from multiple angles. Camera settings are identical on each camera and remotely set and triggered via software on a laptop.
Equipment:
-
2 Canon 5D Mk II w/ Turtle Mounts
-
2 Kino Diva Flo Daylight Light Panels
-
4 Baby C-Stands
-
1 Turntable
-
1 Diffusion Cube
Time:
-
45 Minutes - Setup and Takedown
-
15 Minutes - Calibration and Preperation
-
10 Minutes - Capturing per subject
​
 |
|---|
 |
 |
 |
 |
I learned photogrammetry through two years of personal study when I found myself with access to the Art Institutes' photography equipment after starting work as a check-out clerk with the schools equipment center.
Field Approach
Equipment:
-
1 Canon 5D Mk II
​​
Time:
-
3-15 minutes per subject
Field photogrammetry is easier to prepare for but involves more cleanup after the model is generated to remove baked environmental lighting.
​
Cleanup can be minimized by shooting on days with heavy overcast, preventing most hard shadows from baking to the texture.
​
The photo set for the subject can be somewhat arbitrary, usually making the number of photos higher than in a controlled studio environment.
 |
|---|
 |
 |
 |
 |
Baking The Assets
Software:
-
Agisoft Photoscan
​​
Time:
-
20-160 minutes depending on number of Photos
Agisoft Photoscan acts as the baking system of photo sets. First, the photos are imported and analyzed to determine their relative position to each photo.
​
​
Next, the program locates shared points on each photo pair to generate a dense point cloud that the program can then bake into a usable mesh.
​
​
The mesh and following texture bakes are usually extremely complex in form, but can easily be imported into conventional 3D modeling software for normal and diffuse baking.
