javascript - Unable to serve.terrain files in cesium sandcastle -


i learning 3d terrain generation using cesiumjs. generated .terrain files usind cesium terrain builder , kept them in 'cesium/apps' directory testing purposes , avoid cors issues. whenever, try generate terrain error tile @ x:0 y:0 level 0 tile @ x:1 y:0 level 0 not found though added empty files @ specified locations.

this older question, stumbled upon throughout research i'll detail bit.

after you've managed generate terrain tiles, obvious @ time option serve them https://github.com/geo-data/cesium-terrain-server. server written in go requires go present on system. build intention ease development , testing of terrain tiles created cesium terrain builder tools.

my own objective serve .terrain tiles apache server , turned out pretty easy, after inspecting in fiddler cesium-terrain-server serving , after finding exchange of messages (look kevin ring's reply).

besides cors, terrain files need have mime type application/octet-stream , if gzipped content-encoding: gzip. careful, pass gzip header don't gzip files served again if gzipped.

in .htaccess have following new lines in place:

<ifmodule mod_headers.c>     header set access-control-allow-origin "*" </ifmodule> <filesmatch "(.*)\.terrain$">     forcetype application/octet-stream     header set content-disposition attachment     header set content-encoding: gzip </filesmatch>

what needed add layer.json file in root of terrain folder, following content:

{   "tilejson": "2.1.0",   "format": "heightmap-1.0",   "version": "1.0.0",   "scheme": "tms",   "tiles": ["{z}/{x}/{y}.terrain"] }

now works intended.


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