Hi,

I don't see any image except a blank screen. There may be, and quite
likely, more reasons why your figure is not showing (if it is not showing).
You may want to check your eye positioning, check your view port, check
your frustum etc. More importantly close trace your sample that works and
the one that doesn't.

Now coming to winding I believe the following triangles are would in the
opposite to the rest

The wrong ones are:

7,6,3
7,4,5
0,1,5
2,6,5


Because if you spin a right hand screw in that order the screw needs to
go-in or come-out facing the outside of the cube's surface. By that
logic they are likely
7,3,6
7,5,4
0,5,1
2,5,6

But again even if they were wrong you would have seen something on the
screen.

Here is a quick note on winding and hiding a hidden surface
http://satyakomatineni.com/item/4230

Here is how to hide hidden surfaces
http://satyakomatineni.com/item/4192

Here are my notes on as I have been working through OpenGL
http://satyakomatineni.com/item/opengl

If it helps here is a free chapter on OpenGL 1.1 and a bit on ES 2.0
http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=4060&downerUserId=satya


Hope that helps
Satya
http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni

On Sun, Aug 19, 2012 at 7:57 PM, Braindrool <cawehk...@gmail.com> wrote:

> I have returned to this group, once again. In search of assistance.
> Dealing with OpenGL ES 1.0, I'm having trouble getting back face culling to
> work. I have been following a variety of random tutorials that I've found
> for OpenGL, but this 
> one<http://www.droidnova.com/android-3d-game-tutorial-part-v,376.html>in 
> particular. The sample code works fine, but I'm not sure what I'm doing
> wrong. All I know is that it is about how I wind the vertices into the
> index buffer.
>
> For instance, I try to create a cube. I get this.
>
> <http://imgur.com/07nbH.png>
>
>
> The vertices / indices for that would be:
>
> [code]float[] coords = {
> -0.5f, 0.5f, -0.5f,
> -0.5f, -0.5f, -0.5f,
> 0.5f, -0.5f, -0.5f,
> 0.5f, 0.5f, -0.5f,
> -0.5f, 0.5f, 0.5f,
> -0.5f, -0.5f, 0.5f,
> 0.5f, -0.5f, 0.5f,
> 0.5f, 0.5f, 0.5f,
>
> };
>
> short[] indices = new short[] {
>  //Front
> 0,1,2,
> 2,3,0,
>  //Right
> 3,2,6,
> 7,6,3,
>  //Back
> 7,6,5,
> 7,4,5,
>  //Left
> 0,1,5,
> 0,4,5,
>  //Bottom
> 1,5,2,
> 2,6,5,
>  //Top
> 0,3,4,
> 3,7,0,
>
> };[/code]
>
>
> No idea what I'm doing wrong, help greatly appreciated!
>
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