Robert, I just read your reply after I had sent my email response to Chris. This helps me understand why my approach wasn't working in the first place.
I will take your advice and explore this further. I will probably have more questions as I proceed to find a solution to meet my needs... Thanks, -Shayne -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Osfield Sent: Monday, January 25, 2010 12:42 PM To: OpenSceneGraph Users Subject: Re: [osg-users] altering terrain texture... Hi Shane, There are a couple of texture policy settings in the osgDB::DatabasePager that can tweak things a bit, but not generally: /** Set whether newly loaded textures should have their UnrefImageDataAfterApply set to a specified value.*/ void setUnrefImageDataAfterApplyPolicy(bool changeAutoUnRef, bool valueAutoUnRef) { _changeAutoUnRef = changeAutoUnRef; _valueAutoUnRef = valueAutoUnRef; } /** Get whether newly loaded textures should have their UnrefImageDataAfterApply set to a specified value.*/ void getUnrefImageDataAfterApplyPolicy(bool& changeAutoUnRef, bool& valueAutoUnRef) const { changeAutoUnRef = _changeAutoUnRef; valueAutoUnRef = _valueAutoUnRef; } /** Set whether newly loaded textures should have their MaxAnisotopy set to a specified value.*/ void setMaxAnisotropyPolicy(bool changeAnisotropy, float valueAnisotropy) { _changeAnisotropy = changeAnisotropy; _valueAnisotropy = valueAnisotropy; } /** Set whether newly loaded textures should have their MaxAnisotopy set to a specified value.*/ void getMaxAnisotropyPolicy(bool& changeAnisotropy, float& valueAnisotropy) const { changeAnisotropy = _changeAnisotropy; valueAnisotropy = _valueAnisotropy; } In the case osgTerrain::TerrainTile based paged database the above settings won't work as it's osgTerrain that creates the osg::Texture objects, so instead you'd need to modify the osgTerrain::ImageLayer settings on the TerrainTiles. A custom Registry::ReadFileCallback could probably be implemented to do this for you. Beyond this you could write a pre-processing tool to modify the .ive files on disk. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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