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Re: Poor Performance with glVertexAttribPointer

Posted by Sven Gothel on Jan 15, 2014; 1:41am
URL: https://forum.jogamp.org/Poor-Performance-with-glVertexAttribPointer-tp4031170p4031226.html

On 01/15/2014 01:59 AM, bgroenks96 [via jogamp] wrote:
> It is/was.
>
> Leaks can cause performance degradation right?
There is no simple yes/no answer to this question, sorry.

>
> It's the only thing I can think of to explain the FPS drop over time.

Since I currently work on
  Bug 942 https://jogamp.org/bugzilla/show_bug.cgi?id=942
  Bug 943 https://jogamp.org/bugzilla/show_bug.cgi?id=943

it may help if you can produce a small unit test demonstrating some
use of BufferData etc .. in a shader based environment (core profile).

We can use this one for some measurements .. leak detections.

If MapBuffer is involved and issued multiple times,
especially w/ multiple BufferData (new mapped buffers)
there are chances for a leak - working on it.

~Sven



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