I know of 3 ways:
1, multiple photos synthesized three-dimensional model. Autodesk's 123DCatch, with about 20 photos can be synthesized out of the three-dimensional model out. Above cherrychen (can not @ to you, sorry, the same name is too much) mentioned 3DCloud should be a similar principle.
2, a single photo to generate three-dimensional model. Unintentionally found today, there is a fee-based software called Faceshop, (with a 15-day free trial) can be taken manually with a photo point, modeling to generate a 3D model, mainly face can be better restored out. The method of operation is, according to the software prompts, in your photo specified glasses, nose, mouth and other parts of the location, and then outline your face, eyebrows, nose, the software will be based on these features to generate a model, and then the texture of your face mapping to the model.
3, with ordinary bmp, jpg format photos to generate relief. This is relatively simple, slicing software Cura has this function, the approximate method should be, the software to convert the photo into black and white, and then according to the different points of the grayscale is different, generating different points of the depth of the value, so that you can generate an embossed effect of the model. Now there have been a variety of software to convert photos into 3D models, but generally need to be taken from different angles of more than two photos. For example, Autodesk's Catch123D is said to be Tsinghua University developed only a photo can be 3D modeling software, but it is also a flash in the pan, not after the article. Tsinghua University to develop 3D software modeling only a photo is currently on the market, there is no software that can be perfectly converted into a 3D model of the photo, but this is the trend, there are a lot of cattle B companies have been in the research. The best way is to find a good ability to modeling 3D modeling staff, according to the picture directly out. About 3D printing models have 3D printing modeling standards.
How is 3D printing modeled?Currently no matter what kind of 3D printing, basically are used in the STL format files, STL files, to put it bluntly, is the use of triangles to represent the entity of a file format, this format is the very beginning of the invention of the 3D printing of the definition of the people, has now become the default industry standard in the field of image processing. Now there are a group of people in foreign countries to push a 3D printing file called AMF format, mainly to increase the model of the material, texture, color and other information, may be technological advances in the future, color printing has become the mainstream, this file format will gradually replace the STL. but, for the time being, should be STL format files will be the mainstream.
1, CAD design (parametric modeling)
2, CG modeling
3, amateur software
4, portrait DIY applications, etc.
5, to the model download site to download other people's well-designed models
How to make 3D printing model?This question is relatively simple, there are several ways to do it
One of the simplest ways to go to the model site to download the model or scanner to scan the original three-dimensional model
The most commonly used is the use of professional software modeling, such as CAD modeling, etc.
Of course, you can also use some of the online tools to generate 3D printing model, such as the Magic Monkey Network! The website has an online toolbox, you can realize the graffiti into 3D, 2D to 3D format and other functions
I hope my answer can help you