Hi Martin, Thanks for reposting, the attachments came through just fine this time. I've just did a quick review of the gta plugin and the use of c++ exceptions is something that would cause problems on some embedded platforms builds as exceptions aren't supported. The core OSG avoids use of exceptions for this reason, but some of the plugins do currently use exceptions, which is fine if those plugins that don't need to be used on the embedded platform, but the day they do they the we'd need to port them across. I'm reluctant to introduce another plugin that might need this same porting job to be done for it. Would you envisage this plugin being used on an embedded platform?
On the build front I'll need to have a think how we disable plugins that use exceptions from being built when compilers disable exceptions. Robert. On 8 February 2012 18:38, Martin Lambers <[email protected]> wrote: > Hi everyone, > > on request by Robert Osfield, I'm resubmitting this patch proposal. > > If you would like me to update it to the current SVN revisions, please > let me know. > > Best regards, > Martin > > > Begin forwarded message: > > Date: Mon, 5 Dec 2011 09:16:17 +0100 > From: Martin Lambers <[email protected]> > To: [email protected] > Subject: Enhancement: Support for floating point data in > VirtualPlanetBuilder > > > Hi all! > > I'd like to propose two patches that add support for floating point > data to VirtualPlanetBuilder. This allows e.g. to use elevation data or > temperature measurements or precipitation data or other kinds of sensor > data in the fragment shader to produce interactively adjustable > visualizations. > > The first patch (1-vpb-add-float-formats) is for VPB revision 1045. > It adds new options to choose the texture type: --RGB32F and --RGBA32F. > Furthermore, it adds support for floating point data to the GDAL import > code. > > The second patch (2-osg-add-gta-plugin) is for OSG revision 12890. > It adds a new ReaderWriter plugin for the GTA file format > (http://gta.nongnu.org). This allows to read and write floating point > image data. Unlike other formats, GTA also allows very good compression > ratios for floating point data. The compression method can be selected > with the COMPRESSION option of the plugin. > > To use these features with VirtualPlanetBuilder, build the database > with the following options: > --RGB32F --image-ext gta -O "COMPRESSION XZ" -t <YOUR-DATA> > > If you prefer, I can assign the copyright for this code to the OSG > project lead. > > Best regards, > Martin _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
