Hello,

sorry for the delay.

On Tue, 2012-08-21 at 05:56 -0700, Mirko Oertle wrote:
> Hello,
> 
> thanks for your answer.
> When we have the worst case, than all numbers happen :-).
> Performance and memory foot print are major issues on embedded devices. 

hmm, unfortunately OpenSG definitely has some overhead here, some of 
which we have to address also for the desktop version but I haven't
had time to do a thorough profiling so far.

> You cant compare it to any desktop environments. So the memory and 
> performance overhead of the library is important. It seems that we have to 
> look deeper into it with a test app.
> What do you think how difficult a port of the library to EC7 or CE 6 could be?

Recently I only tried IOS and and least a simple model came out ok. As
for embedded Windows, I haven't looked at the latest version and the
quick glance left me more confused trying to make sense of all the
variants ;(. It also looks like the SDKs are not as freely available
as before, so a quick test seems to be not as straight forward as
with earlier ce versions. I'll see if I can get access to one of the
SDKs. 

The main issue (which is still unsolved for OpenSG in general) is 
handling GLES2, so far what exists is more a quite basic approximation. 
I never had time do completely implement support for it. The good thing
is this is something I can look at independent of the platform, and
something I wanted to for quite some time now, so I can give support
on these parts.

The other part is boost as this is the only external library OpenSG
requires to build, all others are optional. If this is not readily
available porting will be painful.

kind regards
  gerrit







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