How do you render data into your texture? If you do not use shaders (so using of fixed function pipeline) for rendering output to your texture, then the result will be clamped to [0,1].
Art --- Benoit bossavit <[EMAIL PROTECTED]> schrieb: > thanks for your answer but I have tried and this is > don't work :s > have you other suggestion? I'm surprise that don't > work !!! > > thanks you > > bnua > > 2007/9/12, Art Tevs <[EMAIL PROTECTED]>: > > > > Try to use GL_LUMINANCE16F_ARB (and source format > > GL_LUMINANCE) instead of GL_INTENSITY16F_ARB. > > > > Art > > > > --- Benoit bossavit <[EMAIL PROTECTED]> schrieb: > > > > > Hi all, > > > > > > I want to do RTT with HDR saving only one > component > > > (GL_LUMINANCE or > > > GL_INTENSITY) > > > There is my code : > > > > > > > > > myHDRTexture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR); > > > > > > myHDRTexture->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR); > > > > > > myHDRTexture->setInternalFormat(GL_INTENSITY16F_ARB); > > > myHDRTexture->setSourceFormat(GL_INTENSITY); > > > myHDRTexture->setSourceType(GL_FLOAT); > > > > > > > > > > > myCameraHDR->setRenderTargetImplementation(osg::CameraNode::FRAME_BUFFER_OBJECT); > > > > > > myCameraHDR->setRenderOrder(osg::CameraNode::PRE_RENDER); > > > > > > myCameraHDR->attach(osg::CameraNode::COLOR_BUFFER,myRenderHDRTexture); > > > > > > when I look values on my texture they are > clamped at > > > 1 and if I put : > > > myHDRTexture->setInternalFormat(GL_RGBA16F_ARB); > > > myHDRTexture->setSourceFormat(GL_RBA); > > > > > > my texture contains values upper than 1 > > > > > > Someone have an idea? (I don't need saving three > > > component because they are > > > the same) > > > > > > thanks in advance > > > > > > bnua > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > __________________________________ > > Kennt man wirklich jeden über 3 Ecken? Die > Antworten gibt's bei Yahoo! > > Clever. www.yahoo.de/clever > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > Machen Sie Yahoo! zu Ihrer Startseite. Los geht's: http://de.yahoo.com/set _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
