Re: [gl4java-usergroup] glVertexPointer question

[Andy L. <do...@ya...>]

Thanks, it was indeed the byte order. :)

Andy

--- "Kenneth B. Russell" <kbr...@al...>
wrote:
> 
> > From: Andy Lubbers <do...@ya...>
> > 
> > Has anyone sucessfully used a direct
> > java.nio.ByteBuffer in a glVertexPointer
> > statement.  I have been able to get something
> > drawn on the screen if i pass a float[] into
> > glVertexPointer, but nothing shows up if I
> pass a
> > Buffer into it.
> 
> Yes. See
>
http://java.sun.com/products/jfc/tsc/articles/jcanyon/
> ;
> links to the source code are near the bottom of
> the page.
> 
> It's probably the byte ordering; you need to
> call
> ByteBuffer.order(ByteOrder.nativeOrder()) when
> your ByteBuffer is
> first created. I have made this mistake in 100%
> of my own
> java.nio programs which is why I recommend
> making a
> BufferFactory class which does it up front; see
> the slides of
>
http://servlet.java.sun.com/javaone/sf2002/conf/sessions/display-3167.en.jsp
> 
> -Ken
> 
> 
>
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