- Use a library to load OBJ models dynamically at runtime, Quick googling resulted this one:
Most probably there are other implementation that does this in several languages.
- The other way is to convert the OBJ model to vertices in a C header file, but in this case you have to pre-convert the model before compiling your application. This might be helpful if you have limited models and you don't want to load arbitrary model at run time.
Here is a link to a script that does this.
Note that I haven't tested those specifically, so I cannot help if they didn't work as advertised.
I'm curious why you selected the OBJ format specifically?