Hello,
I'm trying to implement a geoserver terrain provider. I made a image Pyramid with gdal_retile.py (gdal_retile.py -v -r lanczos -levels 6 -ps 2048 2048 -co "TILED=YES" -co "COMPRESS=DEFLATE" -co "ZLEVEL=4" -ot Int16 -targetDir pyramid *.tif) from SRTM 250meters.
My git repository is : https://github.com/kaktus40/cesium
Problems: I can't above level 4 without glitches