Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-23 Thread Alok Priyadarshi
Hi Robert,
What is the release schedule for OSG 3.0?

I would also love to showcase something based on OSG in Google IO
which is on May 19th. Can you think of an existing OSG demo that can
be ported to GLES 2.0? The motivation behind using Native Client
instead of WebGL is that in addition to rendering you have other stuff
like physics, terrain decoding, etc.

-Alok

On Fri, Mar 19, 2010 at 1:55 PM, Robert Osfield
robert.osfi...@gmail.com wrote:
 Hi Alok,

 On Fri, Mar 19, 2010 at 6:20 PM, Alok Priyadarshi al...@chromium.org wrote:
 I am one of the contributors to the ANGLE project. Feel free to send
 questions/concerns my way. I have been an old-time osg user (since my
 grad school days) and would love to help.

 Nice to see how exposure to the OSG at university pays dividends to
 the OSG project long term :-)

 As a side-project I am also porting osg to native-client. Since
 native-client only supports OpenGL ES 2.0, I have a vested interest in
 the GLES backend of OpenSceneGraph.

 It'll be great to have native-client support, it's another area that
 I'm very curious about, but alas not yet with the time to dabble.
 Please keep us update on how things progress, and if there are tweaks
 to the OSG that support native-client then just throw out your
 questions/suggestions and we'll see what we can do.

 Do you have thoughts on how long it might take to do the port to
 native-client?  I'm wondering if it'd be possible to roll support into
 OSG-3.0.

 Robert.
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Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-23 Thread Robert Osfield
Hi Alok,

On Tue, Mar 23, 2010 at 4:00 PM, Alok Priyadarshi al...@chromium.org wrote:
 What is the release schedule for OSG 3.0?

I don't have a specific schedule for OSG 3.0, I have set a couple of
feature targets for 3.0 that haven't yet been tackled - the key one
being shader composition.

 I would also love to showcase something based on OSG in Google IO
 which is on May 19th. Can you think of an existing OSG demo that can
 be ported to GLES 2.0? The motivation behind using Native Client
 instead of WebGL is that in addition to rendering you have other stuff
 like physics, terrain decoding, etc.

I don't have any sophisticated demos to hand, but I'm sure we could
put together a few technology demos together if the community pitch in
:-)

Such demos don't require OSG-3.0 though, a dev release would be
sufficient.  I would say that I'd very much like to have 3.0 done by
mid May, I don't yet know how practical this is though - it depends
upon how complex shader composition turns out to be, and how much
commercial work I take on.

Robert.
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Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-19 Thread Trajce (Nick) Nikolov
Interesting. Maybe a way to have osg on XBox :))

-Nick


On Fri, Mar 19, 2010 at 6:50 PM, Robert Osfield robert.osfi...@gmail.comwrote:

 Hi All,

 I just came across this article that talks about a google project
 called ANGLE that is developing a wrapper that maps GLES 2.0 calls to
 Direct3D 9.0.  GLES 2.0 being a pretty small subset of full OpenGL
 makes the task rather more straight forward that wrapper GL 1.x/GL
 2.x/GL 3.x, still not trivial but should be make it more likely to
 succeed.  The article is:

   http://www.theregister.co.uk/2010/03/19/google_webgl_windows_fix/

 It's an interesting development as it's well established that some
 hardware vendors don't support OpenGL well under Windows, so it might
 make a possible workaround for members of the OSG community.  It does
 mean you'll need to have a GLES 2.0 target in your app to take
 advantage of this, but this isn't too difficult now that the OSG has
 GLES 2.0 support.  Once we get more mature fixed function to shader
 pipeline setup this should become even more seamless.

 I'm no windows hack so I'll have to leave it to members of the OSG
 community to investigate further, but potentially we could adds
 support for linking against ANGLE if this project takes off.

 Robert.
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Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-19 Thread Robert Osfield
On Fri, Mar 19, 2010 at 5:06 PM, Trajce (Nick) Nikolov
nikolov.tra...@gmail.com wrote:
 Interesting. Maybe a way to have osg on XBox :))

This thought did occur to me... :-)
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Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-19 Thread Alok Priyadarshi
Hi Robert and all,
I am one of the contributors to the ANGLE project. Feel free to send
questions/concerns my way. I have been an old-time osg user (since my
grad school days) and would love to help.

As a side-project I am also porting osg to native-client. Since
native-client only supports OpenGL ES 2.0, I have a vested interest in
the GLES backend of OpenSceneGraph.

-Alok

On Fri, Mar 19, 2010 at 11:33 AM, Robert Osfield
robert.osfi...@gmail.com wrote:
 On Fri, Mar 19, 2010 at 5:06 PM, Trajce (Nick) Nikolov
 nikolov.tra...@gmail.com wrote:
 Interesting. Maybe a way to have osg on XBox :))

 This thought did occur to me... :-)
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Re: [osg-users] ANGLE - a possible helper under Windows?

2010-03-19 Thread Robert Osfield
Hi Alok,

On Fri, Mar 19, 2010 at 6:20 PM, Alok Priyadarshi al...@chromium.org wrote:
 I am one of the contributors to the ANGLE project. Feel free to send
 questions/concerns my way. I have been an old-time osg user (since my
 grad school days) and would love to help.

Nice to see how exposure to the OSG at university pays dividends to
the OSG project long term :-)

 As a side-project I am also porting osg to native-client. Since
 native-client only supports OpenGL ES 2.0, I have a vested interest in
 the GLES backend of OpenSceneGraph.

It'll be great to have native-client support, it's another area that
I'm very curious about, but alas not yet with the time to dabble.
Please keep us update on how things progress, and if there are tweaks
to the OSG that support native-client then just throw out your
questions/suggestions and we'll see what we can do.

Do you have thoughts on how long it might take to do the port to
native-client?  I'm wondering if it'd be possible to roll support into
OSG-3.0.

Robert.
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