[quote="mp3butcher"]seams there's a problem in camera setup,but you didn't give
it...
There's plenty of entries in osg forum concerning RTT camera setup..
hope the further code help
[code] setClearMask(GL_COLOR_BUFFER_BIT);
setClearColor(osg::Vec4(0.0f, 0, 0, 0.0f));
setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
// set the camera to render before the main camera.
setRenderOrder(osg::Camera::PRE_RENDER, 110);
// tell the camera to use OpenGL frame buffer object where supported.
setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
setProjectionResizePolicy(osg::Camera::FIXED);
setReferenceFrame(osg::Transform::ABSOLUTE_RF);
setViewMatrix(osg::Matrix::identity());
setImplicitBufferAttachmentMask(osg::Camera::IMPLICIT_COLOR_BUFFER_ATTACHMENT,
osg::Camera::IMPLICIT_COLOR_BUFFER_ATTACHMENT);
setAllowEventFocus(false);
//setReadBuffer(osg::Camera::COLOR_BUFFER);
setDrawBuffer(osg::Camera::COLOR_BUFFER0);
setViewMatrix(osg::Matrix::identity());
setProjectionMatrix(osg::Matrix::ortho2D(0, 1, 0, 1));
attach(osg::Camera::COLOR_BUFFER0, tex.get());
[/code][/quote]
Indeed that would be useful.
I have read all the RTT entries which I could find, but it didn't help me solve
the problem.
My camera code:
[code]
mainCamera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
mainCamera->setClearColor(osg::Vec4f(0.0f, 0.0f, 0.0f, 1.0f));
mainCamera->setRenderOrder(osg::Camera::PRE_RENDER);
mainCamera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER);
mainCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
[/code]
I use FRAME_BUFFER because FRAME_BUFFER_OBJECT results in a black screen.
I have tried your settings, but it doesn't make a difference and
setDrawBuffer(osg::Camera::COLOR_BUFFER0) gives an invalid enumerant error.
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=61817#61817
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