Hi All, Has anyone come across a scenario where they wished to have PagedLOD that instead of handling Nodes, handle images ?
Essentially I find myself in a position where I have a model that references a texture, but that texture is quite large, and even with reducing the texture size with little compromise in quality, the time to stream over the web is too large. So, what I'm considering is replacing the image load call, with a similar concept to that of PagedLOD's whereby I could give the "PagedImageLOD" object a list of ordered image file names that I want it to progressively load - in much the same way that apps like google map appears to work. The first image file could be a 2x2 pixel image, whilst the nth image file would be the full-on image. I would want the "PagedImageLOD" to return a valid Image node immediately - perhaps a hard coded small default image - whilst in the background the specified image filesnames are being downloaded, and replace the content of the created image node. The reason for this sort of functionality would be that I could then intercept all image load requests via my own callback handler, replace with a PagedImageLOD request, and still permit most plugins to work happily on the assumption that a model plugin that loads an image is probably only trying to reference that image in some stateset context. Sorry for the thought dump, but has anyone tried/needed to do a similar thing, and if so is there an example available ? Alternatively, if you can think of a better way that would be good as well. Most obvious alternative - that of have an LOD node on the model - would be fine if I only had one or two models. However, I have thousands of different models, so can't really ask our modellers to redo all these. Many thanks for any help/thoughts. Kind regards Neil. .to whose content was progressively replaced by the downloaded images. In this way I could _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
