Original Post
All, Since I've had so much help from the GDNet forums over the years, I thought I'd post up the fruits of my labour for peer review. British Landscape Explorer is a MDX based landscape system using Ordnance Survey maps and some low res aerial photography. The site is here http://www.britishlandscapeexplorer.co.uk and there is a downloadable demo. The demo is limited in scope to a few 100km but the real product can operate at 30fps showing high detail maps of the whole of GB. The marketing fluff is on the web site. Key help I've had from the GDNet forums has been ; * Understanding how to optimise MDX using mulit-threaded disk access. * Landscape tearing, mesh simplification and when and when not to use all the associated techniques (LOD, Skirts, pre-simplification). * Mesh picking (the torture I had implementing that, only to find its really sensitive to the frustum near plane setting ! ) * Multi-pass texturing (which might not be evident from the demo, but is happening in the background). Please post any comments you have here, I'd be happy to gain wisdom, or even faint praise. Cheers !