Simmer3D
What is Photogrammetry?
Photogrammetry is the process of using photographs to measure and map the features of an object or area. This is typically done through the use of specialized software that analyzes the images and extracts measurements and coordinates from them. Photogrammetry is used in a variety of fields, including surveying, mapping, engineering, and archaeology, to create detailed and accurate representations of objects or landscapes. It can also be used to create 3D models or virtual reality simulations.
The Photogrammetry Process
- Take as many as 250 photos of your subject from multiple angles, including close-ups and wider shots.
- Import your photos into your photogrammetry software.
- The photogrammetry software builds a point cloud from the photos. Stray points can be cropped out.
- Build a mesh from the points and correct the scale and orientation of the model
- Export the final model as an OBJ or FBX file.
Photogrammetry by Simmer3D
Photogrammetry meshes have very large files. The meshes can have millions of points and they often have surface imperfections, holes and other mesh errors. If the model is to be used in a 3D photoreal scene these meshes are imported in Blender where the imperfections are fixed and the size of the mesh is reduced. If the model is to be used as a 3D print, the textures can be removed and the surfaces can be sculpted to remove errors.