Experiences using Physics Engines with Qt 3D programs?

matti- · wrote on 29 Sept 2011, 12:36

I've been trying to evaluate different physics engines to be used in a Qt based OpenGL game. BulletPhysics would be my first choice if I was building a Desktop game, however I am wondering whether a mobile device will have sufficient CPU power to run it. Another worry is building the engine for various platforms. If I want to deploy the Qt software for Harmattan/Android, the best solution I see would be to just include all the engine source in my own project (since there - according to a quick googling - doesnt seem to be a .pro build file for it) to be able to compile it anywhere..

Any experiences on using these things in (embedded) Qt projects?

sierdzio · wrote on 30 Sept 2011, 11:04

AFAIK, "Box2D":http://box2d.org/index.html is quite popular, and available for many platforms.

matti- · wrote on 2 Oct 2011, 09:10

As the name implies, I believe that box2D is a, well, 2D physics engine :)

sierdzio · wrote on 2 Oct 2011, 09:22

doh, I missed the 3D in the subject, sorry :)

tomato · wrote on 6 Oct 2011, 06:45

Hi matti-

About the integration of physics engine, I only know that few 3D games have the support of PhysX (Nvidia property, so it's quite limitative to tegra device only...) so it could be possible with other libs (in a near future?).

From my personal experience, the best strategy could be to separate the 3D/game engine from the other parts. As so the developpment to multiplatform is much easier, you can keep your engine as it and just modify the input/thread part. In addition, you are not stuck with the Qt OpenGL integration (With almost the same engine code I can use OGL ES 2.0 for iphone/android or OGL 4.0 on linux or core profile 3.2 on mac lion).

madil · wrote on 20 Oct 2011, 05:40

hi
i want to make the game like Angry Bird so any one of you providing me help on it or provide sample code for me thanks.

tomato · wrote on 20 Oct 2011, 09:30

hi madil,

I think your request should be a little more specific that "I want to do a angry bird-like game, how can I do" if you want some help.

So could you precise your need??

madil · wrote on 20 Oct 2011, 12:23

hi tomato,
yes i want do a angry bird like game but i can't get the correct way ,i also try "Box 2D " ,so if you know any thing about it kindly provide it to me thanks.

sasmaster · wrote on 23 Oct 2011, 12:50

I don't understand why you would want using Qt for AngryBirds style game dev.I think it is complete overkill and waste of time.Such games you can create easily with tools like Unity3D and some more game oriented engines/frameworks available out there may of which are free and easy to use.

matti- · wrote on 11 Nov 2011, 17:03

i got bullet physics working nicely with my opengl app, see the link in my sig for a demo on n9/meego harmattan.