I need to develop an interior designing software 🙂
Much like a virtual room designing software.
There will be pre-designed 3D objects and they can dragged on to the room. You can change the room size etc… Much like a conventional home designing software 🙂 After the room is designed i should be able to to make the user walk through it…
I know that is a lot of requirements…
But are there any open source IDE’s/API’s/Engines that can i use to achieve similar results?
What you need to use depends on the level of realism you want to achieve.
For a simple(ish) start, try Google Sketchup – there is a vast array of samples online: http://sketchup.google.com/3dwarehouse/
For something more powerful (and complicated to use), try Blender
You’ll then need to use an API to render and allow user movement – for this, take a look at JMonkeyEngine
FYI – There is a more complete list of modeling apps on the jMonkeyEngine site.