Comments on: Loading multiple 3D objects from an Obj file (min3D for Android)

By: Chris

Chris — Tue, 02 Aug 2011 10:34:07 +0000

EDIT: The export options for OBJ are now located in the Blender file selector window to the left. Did not find them on first look..

There you can have normals exported, too.

By: Chris

Chris — Tue, 02 Aug 2011 10:08:36 +0000

rather old post, but leaving answer

Blender OBJ export does not export the faces’ normals.
Without normals shading won’t work.

You can export from Blender as COLLADA .dae and import this to MeshLab.
MeshLab then exports .obj with normals.
The resulting text file has to be modified manually cause MeshLab uses “,” instead of “.” for float values. Min3d crashes if floats have “,”

Additionally you could add a light source in min3d like this:

_lightRed = new Light();
_lightRed.ambient.setAll(0×88110000);
_lightRed.diffuse.setAll(0xffff0000);
// _lightRed.diffuse.setAll(255, 0, 0, 0); // RGBA 0..255
_lightRed.type(LightType.POSITIONAL);
_lightRed.type(LightType.DIRECTIONAL);
_lightRed.position.setAll(0, 0, 0);
scene.lights().add(_lightRed);

By: Tjerk

Tjerk — Sun, 03 Oct 2010 22:43:18 +0000

I’m using min3d and it works fine. However the colors of my blender models are somehow not saved in the .obj files and are not loaded into min3d. The model is totally black.. how can i make it look nice?

I also have a model with textures however i dont know how to get those texture out of blender.. and i think it has two textures. Its this model file: http://www.blendswap.com/3D-models/weapons/colt/

Thanks for your hard work on min3d!

By: Dennis

Dennis — Tue, 13 Jul 2010 07:07:51 +0000

@Michael: Hopefully soon. I just need some time to do it

By: Michael Cox

Michael Cox — Sun, 11 Jul 2010 14:07:24 +0000

This is great, I have it integrated in my code and it soooo almost works. Please don’t take this as being pushy but is there any kind of target date for adding group support?