Hi
I had the same problem, and I found a solution (but can't remember where I found it). It's like this:
// Realize the Viewer
_viewer->realize();
// correct aspect ratio
double fovy,aspectRatio,z1,z2;
camera->getProjectionMatrixAsPerspective(fovy,aspectRatio,z1,z2);
aspectRatio=double(traits->width)/double(traits->height);
camera->setProjectionMatrixAsPerspective(fovy,aspectRatio,z1,z2);
Regards
Moji the Great
--- On Wed, 2/11/09, Cory Riddell <[email protected]> wrote:
From: Cory Riddell <[email protected]>
Subject: Re: [osg-users]
forcing a square aspect ratio
To: "OpenSceneGraph Users" <[email protected]>
Date: Wednesday, February 11, 2009, 12:18 AM
FWIW, I've attached a screen shot of what should be a square. The
Drawable code was taken from the quickstart guide and the vertices are:
v->push_back(osg::Vec3(-1.f, 0.f, -1.f));
v->push_back(osg::Vec3(1.f, 0.f, -1.f));
v->push_back(osg::Vec3(1.f, 0.f, 1.f));
v->push_back(osg::Vec3(-1.f, 0.f, 1.f));
Any ideas?
Cory Riddell wrote:
I've been playing with osgviewerMFC and I've noticed that when I open an
osg file (like cow.osg), the rendering is "stretched" to fit the aspect
ratio of the containing window. For example, if I resize the app to be
wide then open the cow, I get a very long cow. If I make the window
short and tall then open the cow, I get a very compressed cow. Resizing
the window does resize the cow, but the aspect ratio doesn't change.
osgviewerQT doesn't have this problem but I don't see what's different.
What controls the aspect ratio of the rendering?
BTW, my cow.osg is from 2.6. Has the osg file format changed?
Cory
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