In Select tool, click off of the model and drag a straight line across your model. Laser select can take some practice getting used to but is pretty clever. Adjust the brush size with the scroll wheel. Click and drag on top of the model to paint with this. Paint select: Mouse over part of the mesh and you will see a circle follow your mouse on the surface. Select tool -When in "Select" tool, you can paint select or laser select. This is a common tool for anyone who works in MeshMixer so get used to how it works.
In MeshMixer, pressing " S" enters you into the Select tool.
First, learn the how to navigate inside of Meshmixer: Orbit: right click drag Zoom: scroll wheel in/out Pan: scroll wheel hold down + move
We only need the head parts, so lets see how to get rid of the neck and shoulders. Blurry Photos: Blurry photos will confuse 123D Catch Lighting: Poorly lit scenes will cause problems for 123D Catch, as well as irregular lighting (like strong back-lighting). This works great, just make sure to get plenty of overlap and top/bottom angles as you move the one loop around the person. Then I stop just short of where I started as reshooting the face causes distortions (yes they moved, even if they said they didn't). I found I get best results if I start on the side profile of the face and make my way across the face first. Then, 5-10 from top-down angle to get the top of the head. Typically 20-25 in a loop framing their chest upwards, making sure to get under their chin. When shooting a person I try balance this and shoot the least amount of photos to eliminate the chance of them moving. Don’t have too much space in between shots. Some other things to be aware of: Photo Coverage: Catch must be able to “see” everything that you want to create a Capture of. If you see your model move their face, even slightly, just start over and tell them the above points.The more context the better the model will come out. Frame your subject from just below the chest and up.(These features help 123D Catch reconstruct the model) Put pieces of masking tape around the chest, shoulders, neck, and back of head.Shoot sharp, well framed photographs, oh but quickly!.Channel their inner mannequin Things you can do:.Comfortably focus eyes on a distant point.Close jaw to avoid subtle face movements.Sit down (to eliminate balance movement).Here are some tips for capturing a live person's head: Things to tell your subject when shooting photos: The biggest challenge is having the subject remain perfectly still. Sometimes I have to reshoot them a second or third time. It can take some practice/redos, to capture a good model of a person's head. I may shoot some additional top-down angles to get the top of the head.
For example, I'll shoot 20 photos or so in small increments in a full 360 degree loop to ensure I get full coverage. Basically you shoot a sequence of overlapping photographs as you move around the person. Creating a 3D model with 123D Catch can be easy.
The benefit of using the desktop PC version is that you can use your own camera and you are not bound to the app on the device. 123D Catch is free and can be found here: It is available on iPhone/iPad, Android, Windows Phone and tablets, and as a PC version.