Time  Nick         Message
19:53 saschaheylik celeron55: can you tell me how much drawing code that calls irrlicht minetest has?
19:53 saschaheylik and in which files
19:54 saschaheylik i am trying to estimate the effort required to convert to ogre3d
19:55 saschaheylik "too much" is both relative and not an objective measure. if we had an estimate we could easily get enough people together to get it done farily quickly
19:56 saschaheylik but i dont know where all the drawing code is and how much of it uses irrlicht so instead of reading every single file i hope you can give me the answer
19:57 celeron55    i can't give you any answer to that
19:57 saschaheylik not even to in which files the drawing code is?
19:58 celeron55    grep for scene:: or something
19:58 celeron55    also irrlicht's containers are used in many places, those are in core::
19:58 celeron55    and other irrlicht's types
20:01 saschaheylik gives me about 11 classes for scene::
20:01 celeron55    then there is gui::
20:01 saschaheylik how do you grep for multiple words?
20:02 saschaheylik i dont think i remember regex
20:03 saschaheylik irrlicht uses the irr namespace
20:03 saschaheylik so all files must contain "irr" right?
20:06 saschaheylik thats 78 files ending in .h
20:07 saschaheylik oh which 12 are the ugly gui which would rather be rewritten anyways
20:11 saschaheylik the average class seems to be about 500 lines
20:11 saschaheylik irrlicht calls are relatively easy to translate to ogre calls, not much thinking involved
20:12 saschaheylik 500*78=39,000
20:13 saschaheylik how long would it take to go through 1000 lines and change the irrlicht calls to ogre calls?
20:13 saschaheylik 1 hour?
20:14 saschaheylik mesh.h/mesh.cpp for example could be done in about half an hour i think
20:15 VanessaE     maybe an hour to replace the calls, but how many weeks to fully debug the result?
20:15 saschaheylik well you should use a proper development process
20:16 saschaheylik so write a test if possible, change a bit, if it works repeat
20:16 saschaheylik on one class per developer
20:17 saschaheylik of course to incrementally change the drawing code you would have to still draw it in irrlicht and start _adding_ ogre calls
20:17 saschaheylik else you dont see shit...
20:18 saschaheylik then once you have everything drawing in one irrlicht window and one ogre window you can remove all the irrlicht calls
20:18 saschaheylik that could be done with a script
20:19 saschaheylik so i guess about 40 to 80 programmer-hours
20:19 saschaheylik (.5 - 1h per class)
20:21 saschaheylik assuming each programmer programs for 3 hours a day thats 21 hours a week
20:21 saschaheylik and if you have 4 programmers they together program for 84 hours a week