G4DAEView Dependencies

Dependencies Tree

• PyOpenGL
• glumpy
  • OpenGL.GLUT (PyOpenGL wrapped)
    • GLUT.framework
• ROOT, used for ChromaPhotonList deserialization

Alternatives to GLUT ?

The glumpy dependency GLUT.framework prevents going beyond OpenGL 2.1, GLSL 120. This is despite OSX 10.9 system and MBP hardware supporting OpenGL 4.1.

Implications of ancient OpenGL 2.1

1. developing against obsolete API, eg the geometry shader extension API
2. GLSL 120 (even with extensions) have very poor int/uint support so forced to do even simple things like photon selection based on flags in CUDA rather than the shader

GLFW

• Modern OpenGL support on OSX, Linux, Windows
• Not a GLUT drop in (no menu-ing)
• http://www.geeks3d.com/20121109/overview-of-opengl-support-on-os-x/
• http://stackoverflow.com/questions/19993078/looking-for-a-simple-opengl-3-2-python-example-that-uses-glfw

glfwcy with PyOpenGL and OpenGL 3.2

• https://github.com/electronut/pp/blob/master/simplegl/simpleglfw.py

glfw python wrappers

• https://pypi.python.org/pypi/glfw/1.0.1
• https://github.com/enthought/glfwpy
• https://github.com/glfw/glfw

migration from glumpy to glfw

• https://groups.google.com/forum/m/#!msg/pupil-discuss/qrxH8KGh7vU/ZvRpbg7Mnu0J
  • example of a python project making the move to GLFW