3D Studio – Computer Graphics and Visualization – Source code

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3D Studio – Computer Graphics and Visualization – Source code

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3D Studio

Computer Graphics and Visualization

Anton Eriksson (tfy12aen@cs.umu.se)

Department of Computing Science Umeå University

System design

Written in C++

GLFW for GL context

GLM for vectors/matrices

GTK for GUI. (Thought about using gtkmm.)

(Almost) no global variables! (Save for GTK objects.)

A WindowManager class effectively acts as a singleton through glfwSetWindowUserPointer. (Worse?)

Source code

  • Not a lot of code in main.cpp 
    3d-studio git/master
❯ wc -l *.{cpp,c,h}
    114 main.cpp
  [...]
   2351 total
  • Even less in the main loop 
    while (!window->shouldClose()) {
    buffer->clear();
    updateUniforms();
    buffer->draw();
    window->swapBuffers();
    gtk_main_iteration_do(0);
}

Include dependencies

Reflections

  • Would prefer OOP GUI lib GL context directly, e.g. QT, gtkmm.
  • Biggest hurdle: make GTK + GLFW not segfault on my machine. ~ 20 h of debugging.
  • Still haven't found a way to run my application under a profiler.
  • Maybe not the best situation to learn C++.
  • The incremental addition of features made the design somewhat crufty, but most of the initial design stuck.

Questions?

3D Studio Computer Graphics and Visualization Anton Eriksson (tfy12aen@cs.umu.se) Department of Computing Science Umeå University