i guess i spoke too fast. I get transparency no, but it´s not exactly what i
want
how do i know what kind of FBO i´m using???
From: [EMAIL PROTECTED]
To: osg-users@lists.openscenegraph.org
Date: Thu, 24 Jul 2008 14:00:56 +0200
Subject: Re: [osg-users] Render to texture and ClearColor
ok, i solved it with this instruction
camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
don´t know what it exactly does, but it´s working now as i want it to.
An explanation of what this isntruction do will be welcome
thanks
> Date: Thu, 24 Jul 2008 12:53:07 +0100
> From: [EMAIL PROTECTED]
> To: osg-users@lists.openscenegraph.org
> Subject: Re: [osg-users] Render to texture and ClearColor
>
> Dous you FBO have an alpha channel????
>
> On Thu, Jul 24, 2008 at 12:42 PM, David _ <[EMAIL PROTECTED]> wrote:
> > Hi
> >
> > i´m currently rendering to a texture using a slave camera
> >
> > my problem is that i can´t set the clear color to alpha. Each time the slave
> > camera renders a new frame i get a nice blue background instead of the
> > transparent background i´m looking for
> >
> > i´ve tried with values of 0.0, 0.5 add 1.0 for alpha
> >
> > camera->setClearMask( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
> > camera->setClearColor(osg::Vec4(0.0f,0.0f,1.0f,0.0f));
> > camera->setColorMask(true, true, true, true);
> >
> > i´ve created the texture2d attached to the camera from and osg::image with
> > GL_RGBA and GL_UNSIGNED_BYTE formats and also i´ve tried by creating the
> > texture2d with no parameters and setting later the
> > texture->setInternalFormat(GL_RGBA)
> >
> > any idea of what i´m doing wrong???
> >
> > thanks in advance
> >
> >
> >
> >
> >
> >
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