Hi,
I want to make a screenshot of a osgShadow::ShadowScene.
I have created an osg::Camera this way :
Code:
camera->setClearColor(osg::Vec4(0.8f,0.8f,0.8f,1.0f));
camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setProjectionMatrixAsPerspective(90,1.0,x,2*x);
camera->setViewMatrixAsLookAt(_position,
_lookAt,
osg::Vec3f(0.0f,0.0f,1.0f)
);
camera->setViewport(0,0, xres, yres);
camera->setRenderOrder(osg::Camera::POST_RENDER);
camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
camera->attach(osg::Camera::COLOR_BUFFER, myImage);
camera->setFinalDrawCallback(new WriteCallback(filename, camera, myImage));
camera->addChild(_originalModel);
[\code]
If I make
viewer.realize();
viewer.frame();
I will not see my 3D model.
If I do viewer.frame() once more I will see my 3D model but no shadow on it.
I know the problem is coming from the camera because if i create a viewer and
run it with the same _originalModel before entering my screenshot procedure
there is no problem.
Someone could explain me the logic behind it ? I mean do I have to make a trick
for having shadow on my screenshot. I have read about 2 cameras on another
topic but not sure about.
Thank you all :)
Cheers,
Benoît
------------------------
--
Benoît Bayol
benoit.ba...@gmail.com
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=19891#19891
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