Hi,
Vaibhav Bansal wrote:
Yes, this is what the overlay node does for me.
But I am unable to understand, why the stretching occurs only 'at' some
specific angles.
Are the transitions smooth or are you seeing jumps?
jp
Regards
Vaibhav Bansal
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of J.P.
Delport
Sent: Thursday, November 19, 2009 3:47 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Using OsgSim Overlay
Hi,
Vaibhav Bansal wrote:
Hello jp,
Thanks for the quick reply.
How do I check if the 'resolution' of ovelay geometry is changing.
imagine the following:
You want to overlay a 1024x1024 checkerboard onto the earth and you have
a 512x512 overlay texture. If you view the whole earth it obviously
would not look good - too much detail to fit into the texture. What the
view dependent modes try to do is this: When you zoom in, you only see a
piece of the checkerboard, so now the 512x512 texture can contain only a
piece of the checkerboard and so you see "more detail" of the overlayed
geometry.
I think this is the effect you are seeing when you are moving the view
around.
jp
Regards
Vaibhav Bansal
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of J.P.
Delport
Sent: Thursday, November 19, 2009 2:41 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Using OsgSim Overlay
Hi Vaibhav,
Vaibhav Bansal wrote:
Hello,
I have added a geometry as an overlay over another geometry.
The overlay texture seems to distort(stretch) under certain viewing
angles.
It seems the projected texture is generating incorrect texture
coordinates.
The texture coordinates might be OK, but the resolution of your
overlayed geometry might change in the generated overlayed texture. What
happens in OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY? Does the
resolution/stretch stay the same?
jp
The white area is the overlaySubgraph geometry, and the colored area is
the
Overlay Node (base) geometry.
The overlay mode is VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_PROJECTION.
Can anyone suggest where should I start troubleshooting.
Thanks
Vaibhav Bansal
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