Hi Andrew,
It shouldn't make any difference whether the data is an ImageStream or
an straight Image. Try getting what you are doing working with a
normal image and then see how you get on.
Also have a look at example that use TexGenNode such as osgspotlight.
Robert.
On 7/12/07, Weitz, Andrew C. <[EMAIL PROTECTED]> wrote:
Robert,
I am not using a TextureRectangle or specifying any texture coordinates.
That is because I'm using a TexGenNode. I use the following code to
specify the projection plane, which works when projecting an Image:
tex_gen_node->getTexGen()->
setPlanesFromMatrix( osg::Matrixd::ortho2D( upper_left_x,
lower_right_x,
lower_right_y,
upper_left_y ) *
osg::Matrix::translate( 1.0, 1.0, 1.0 ) *
osg::Matrix::scale( 0.5, 0.5, 0.5 ));
Will this code have to change to accommodate the ImageStream? Or does
my problem lie elsewhere?
Thanks!
Andrew
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Osfield
Sent: Thursday, July 12, 2007 1:30 AM
To: osg users
Subject: Re: [osg-users] ImageStream Projection
HI Andrew,
Most likely its simply that your tex coords are off. If you are using
a TextureRectangle then the tex coords go from 0,0 to width,height
rather than 0,0 to 1,1 like on normal textures.
Robert.
On 7/12/07, Weitz, Andrew C. <[EMAIL PROTECTED]> wrote:
> Hi,
>
> My goal is to project an ImageStream onto some geometry. I'm using
the
> QuickTime plugin to read an AVI file as an ImageStream.
>
> I can successfully project an Image onto my geometry by using a
> TexGenNode and TexEnv. My code for projecting an ImageStream is
> identical, except that I cast the Image to an ImageStream and then
call
> play(). The problem is that I never see the movie; instead, I see a
> solid gray image projected where the movie should be.
>
> Is it possible to do what I'm attempting?
>
> Thanks,
> Andrew
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