Hi everyone,
I'm developing an android application for my thesis and I need to load
a 3D model into it. I have decided to use the .obj file structure as
input. After some searching in the internet and also here in the
Android Developers group I found an object loader provided by the
project android-gl (http://code.google.com/p/android-gl/). Its
ObjectLoader.java file provides the following load methods:
public Model load(InputStream in)
throws IOException
public Model load(String file)
throws IOException
My problem at the moment is to correctly load the model into my
application so that I can see it on the display. I have integrated the
loader call inside the onDrawFrame method:
public void onDrawFrame(GL10 gl) {
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
gl.glFrontFace(GL10.GL_CW);
gl.glEnable(GL10.GL_CULL_FACE);
gl.glCullFace(GL10.GL_BACK);
for(int loop = 0; loop < 2; loop++) {
if(loop==0) {
gl.glViewport(0, 0, w, h);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
gl.glOrthof(-1.0f, 1.0f, -1.0f * h / w, 1.0f *
h / w, -2.0f,
10.0f);
}
if(loop==1) {
gl.glViewport(0, 65, w/2, w/2);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, 45.0f, (float) w /
(float) h, -2.0f,
10.0f);
}
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glClear(GL10.GL_DEPTH_BUFFER_BIT);
if(loop==0) {
gl.glPushMatrix();
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glBindTexture(GL10.GL_TEXTURE_2D,
textureId);
gl.glTranslatef(0.0f, 0.0f, 10.0f);
gl.glVertexPointer(2, GL10.GL_FLOAT, 0,
vertices);
gl.glEnable(GL10.GL_TEXTURE_2D);
gl.glTexCoordPointer(2, GL10.GL_FLOAT,
0, texCoords);
gl.glDrawElements(GL10.GL_TRIANGLES,
mIndices.length,
GL10.GL_UNSIGNED_SHORT, indices);
gl.glPopMatrix();
gl.glDisable(GL10.GL_TEXTURE_2D);
}
// NOW THE PART WITH THE LOADER
if(loop==1) {
gl.glPushMatrix();
gl.glTranslatef(0.0f, 0.0f, 5.0f);
// loading 3D model
try {
---------> loader.load(new
FileInputStream("sdcard/
pixbag.obj"));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
gl.glPopMatrix();
}
}
gl.glDisable(GL10.GL_CULL_FACE);
gl.glFlush();
}
Since I'm working with the android emulator I wanted to load the obj
file out of the emulated sdcard device. But when I'm trying to push a
file onto it using DDMS in eclipse the console returns the following
lines:
Failed to push the item(s).
(null)
I also tried to push the file using the command line tool without
result :( So for now without the model I'm even not sure if the loader
does what it's supposed to do.
Another way I tried was to have the obj file in the assets folder of
my eclipse project from where I also load my texture file. So I have
modified the above-mentioned lines concerning the loader to:
InputStream in = getAssets().open("pixbag.obj");
loader.load(in);
This revision neither worked. I still cannot see the 3d model. Any
help and advise on how I can load and display the 3d data in the
emulator is more than appreciated!
thanks in advance,
Sadi
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
