Hi,
I have problem with performance when try to load a big file size in the screen.
I have 2 screen,
screen 1 have a button, when i click this button it will go to screen 2 to load object but it take 2-3 second to go next screen.
is there any way that i can go to the 2nd screen first and load the render for surfaceView later.

Hi,

I have an obj file with many object inside (about 67 object).
currently, when load from obj i made the fist object as parent and add the other as child to rotate and zoom.
the problem is when i set parent as center camera and rotate, it will rotate around the parent object, not the middle of them.
how can I rotate around the middle of them because I don't know which object is in the center of all object.

I have to rotate object around the axis


public void onDrawFrame(GL10 gl) {
....
parentObj.rotateAxis(new SimpleVector(mPquart[1],mPquart[2],mPquart[3]),mPquart[0]);
...
}

The problem is mPquart is Quaternion and get from SensorManager.
So, I need something like glPushMatrix() & glPopMatrix() to make the object stable when I don't rotate the phone.
How can I do it.

I try gl.glPushMatrix(); and gl.glPopMatrix(); but nothing happen.

Hi,

My app load object from file .obj.
Inside the .obj also contain texture


vt  1.000000 0.011329 0.000000
vt  1.000000 0.011329 0.000000
vt  1.000000 0.024390 0.000000
vt  1.000000 0.024390 0.000000
vt  1.000000 0.024390 0.000000
vt  1.000000 0.975610 0.000000
vt  1.000000 0.975610 0.000000


how can i load that texture.

Hi, my app have 2 object.
The object2 is a child of object1.

At the first time run app. I click on child and call translate, it go on the correct direction that i that my finger move.
After I rotate the parent, it go on the opposite way with my finger.

I only want the child move along with it out Axis, not in work Axis.

in pic1 it correct, in pic2 it wrong direction.

here is my code:


public void onDrawFrame(GL10 gl) {
SimpleVector dir = Interact2D.reproject2D3DWS(cam, fragment3D.fb, (int) fragment3D.xPos, (int)fragment3D.yPos).normalize();
world.calcMinDistanceAndObject3D(world.getCamera().getPosition(), dir, 10000F);

if (this.hasToCreateBuffer) {
hasToCreateBuffer = false;
fb = new FrameBuffer(w, h);
}
if (object2.wasTargetOfLastCollision()){
SimpleVector direction = new SimpleVector(dis*scale,0,0);
object1.translate(direction);
}else{
if (touchTurn != 0) {
object1.rotateY(touchTurn);
touchTurn = 0;
}
if (touchTurnUp != 0) {
object1.rotateX(touchTurnUp);
touchTurnUp = 0;
}
}
updateFrame();
}