Re: [android-developers] openGL not removing all lines/points

Hi,

I think you're rendering too many elements in your onDrawFrame -method.

buffer.position(0);
gl.glVertexPointer(2, GL10.GL_FLOAT, 0, buffer);
gl.glDrawArrays(GL10.GL_POINTS, 0, counter);

Here counter seems to be number of values within buffer while you should render only number of vertice elements. Meaning, if I read your source code correctly, you should render counter/2 points (or line strip vertices).

--
H

On Oct 24, 2012, at 5:03 PM, Karl Geerts <karl.geerts@gmail.com> wrote:

> Hello,
>
> I've been looking all over the internet but I cant figure out what I did wrong. So I'm trying to graphicly show the audio recording. So it has to be realtime. I checked all my points and they are normal. But I get a lot of lines (if I use the GL10.GL_LINES) or a lot of static points (when using GL10.GL_POINTS). Now I don't know where the lines come from and why they're not removed. Anyone that has an idea? Or a great example with a refreshing of the vertex array every ondraw method.
>
> I added my renderer class and a screenshot from my phone when testing (made with GL_LINES, points is a bit hard to see).
>
> Any help would be great.
> Thanks,
> Karl

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