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osgEarth 2.1.1
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/home/cube/sources/osgearth/src/osgEarthDrivers/engine_seamless/doc/README
Go to the documentation of this file.
00001 seamless 00002 00003 seamless is a terrain engine for osgEarth. It takes over rendering of 00004 the map from internal map engine of osgEarth. It uses the LOD 00005 algorithm described in "Seamless Patches for GPU-Based Terrain 00006 Rendering" by Livny, Kogan and El-Sana. A copy of the paper can be 00007 downloaded from http://wscg.zcu.cz/wscg2007/Papers_2007/full/C43-full.pdf. 00008 00009 The engine works for both projected terrain and geographic, 00010 whole-earth maps. For the whole-earth case, the faces of a cube are 00011 projected on the earth; the grid lines on each face are great 00012 circles. The file euler.kml illustrates this projection. 00013 00014 Use 00015 00016 Once installed, specify osgearth_engine_seamless as a 00017 pseudo-plugin. For example: 00018 00019 osgviewer multiple_heightfields.earth.osgearth_engine_seamless 00020 00021 Limitations. 00022 00023 The engine renders the height field and the first image layer from the 00024 map. It ignores all engine parameters for now.
