Category: Rhino


I have made a lot of mistakes in the last four days and learned valuable lessons about AgiSoft StereoScan, the free program I am using to convert stereo photographs into 3-D meshes. I noticed a problem that when I blended the photos in Photoshop first the floor often melded with the material and StereoScan treated it as a floor plane. Download the 3-D model.

StereoScan lessons

StereoScan lessons

After a lot of trial and error, I found a way to blend multiple photographs and build a 3D model in StereoScan. I ended up manually selecting and deleting everything except the illuminated material in each layer of the sequence. Then StereoScan could map the volumes of the multi-frame packet.

stereoScan volumes

stereoScan volumes

This is the method for converting stereo pairs of photographs into a 3D model:

  • Record synchronized stereo photographs.
  • Manually delete everything in the frame except the illuminated material.
  • Load the blended left and right images into StereoScan
  • Create a 3-D model

The models may, of course, be imported with other programs. I used Rhino with V-Ray to make a quick render of one of the simplified surfaces.

Rhino with V-Ray render of original form

Rhino with V-Ray render of original form

Rhino with V-Ray render of rebuilt surface

Rhino with V-Ray render of rebuilt surface

interrogating methods

I have been testing some modeling methods with the photographs I’ve collected so far. My classmate, Lane Rapson, developed a script in Grasshopper for Rhino that interprets photographs into 3D surfaces. I am using it to test how photographs can inform volume and surface. This is one of the first tests. This Rhino model interprets five frames that contributed to this blended photograph. I converted the original frames and used Grasshopper and Rhino to blend them.

Three point wall photos blended in Rhino

worm's eye view

perspective of five frames blended in Rhino with Grasshopper

perspective of five frames blended in Rhino with Grasshopper

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