Comment 4 for bug 912280

hi,Rogelio.
Thank you for your help.You modified app it work fine.
But, sometimes applications need to repeated set bufferdata , the same problem will appear.
For example, rendering process is as follows:
1. painting triangle
2. Painting textures
3. Painting rectangular
4. Painting circle
The same problem still happen，it will missing some picture

Best regards!
junxiong
At 2012-01-13 07:17:50,"Rogelio Garcia" <email address hidden> wrote:
>Hello Jun,
>After having a deeper look at your program I noticed a mistake in the execution. I'm no expert in writing 3D apps but here's the issue.
>
>With the current implementation of your program you are creating 3 FBO
>(frame buffer objects), one for each triangle for every frame. The
>problem is that this is a gpu consuming operation that should be done
>before the rendering and only once.
>
>Find attached the modified app that will create the same 3 triangles
>using 1 FBO and initialized only once.
>
>Rogelio
>
>** Attachment added: "hello_triangle_rogelio.cpp"
> https://bugs.launchpad.net/ubuntu-omap4-extras-graphics/+bug/912280/+attachment/2670889/+files/hello_triangle_rogelio.cpp
>
>--
>You received this bug notification because you are subscribed to the bug
>report.
>https://bugs.launchpad.net/bugs/912280
>
>Title:
> my program run in ubuntu 11.10 try draw three non-texture triangles
> but only two triangles show.
>
>Status in Ubuntu OMAP4 graphics addons:
> New
>
>Bug description:
> my pvr driver and lib come from "http://ppa.launchpad.net/tiomap-dev
> /omap-trunk/ubuntu/"
>
>  my program run in ubuntu 11.10,program try draw three non-texture
> triangles, but only two triangles show.
>
>  if the program run in ubuntu 10.10,it is normal.
>
>   code as follows: http://paste.ubuntu.com/798047/
>
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