I also use:
gl.glEnable(gl.GL_COLOR_MATERIAL);
On Oct 29, 6:31 pm, Steff <[EMAIL PROTECTED]> wrote:
> Hi
>
> I am playing with OpenGL and especially light in OpenGL. I have tried
> to set light in the GLSurfaceView application in ApiDemos (Under
> Graphics / OpenGL ES).
>
> I just try to set the light as simple as I can. Therefore I just add a
> few lines to CubeRenderer.drawFrase so that it looks as shown below. I
> get some light effect, but it does not look like the light is
> constantly comming from one direction. I looks like the light source
> is also flying around. Why is that?
>
> public void drawFrame(GL10 gl) {
> /*
> * Usually, the first thing one might want to do is to clear
> * the screen. The most efficient way of doing this is to use
> * glClear().
> */
>
> gl.glClear(GL10.GL_COLOR_BUFFER_BIT |
> GL10.GL_DEPTH_BUFFER_BIT);
>
> /*
> * Now we're ready to draw some 3D objects
> */
>
> gl.glMatrixMode(GL10.GL_MODELVIEW);
> gl.glLoadIdentity();
>
> // Here start of lines I have added to get "light"
> gl.glEnable(gl.GL_LIGHTING);
> gl.glEnable(gl.GL_LIGHT0);
>
> float ambientLight[] = { 0.0f, 0.0f, 0.0f, 1.0f };
> float diffuseLight[] = { 1.0f, 1.0f, 1.0f, 1.0f };
> float specularLight[] = { 1.0f, 1.0f, 1.0f, 1.0f };
> float position[] = { 3.0f, 3.0f, 3.0f };
>
> gl.glLightfv(gl.GL_LIGHT0, gl.GL_POSITION, position, 0);
> gl.glLightfv(gl.GL_LIGHT0, gl.GL_AMBIENT, ambientLight, 0);
> gl.glLightfv(gl.GL_LIGHT0, gl.GL_DIFFUSE, diffuseLight, 0);
> gl.glLightfv(gl.GL_LIGHT0, gl.GL_SPECULAR, specularLight, 0);
> // Here end of lines I have added to get "light"
>
> gl.glTranslatef(0, 0, -3.0f);
> gl.glRotatef(mAngle, 0, 1, 0);
> gl.glRotatef(mAngle*0.25f, 1, 0, 0);
>
> gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
> gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
>
> mCube.draw(gl);
>
> gl.glRotatef(mAngle*2.0f, 0, 1, 1);
> gl.glTranslatef(0.5f, 0.5f, 0.5f);
>
> mCube.draw(gl);
>
> mAngle += 1.2f;
> }
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---
