And also this blacklist (which is being read 'cause it appears in the log):
Same project when packaged for Windows gives 82.4 mb (which I also find very big since it’s a very simple project… it uses 19.7 mb on the .pak file, 50.1 mb on the UE4Game-Shipping.exe and 14 mb with plugins that I don’t know how to get rid off since I don’t use any of them)
I have no Starter Content since my last attempt to reduce size was to begin a new clean blueprint project with no Starter Content and migrate only the level that is going to be packaged to this new clean project.
Does anyone know what can I do to make this smaller?
Thanks in advance for the help!
a) The uncompressed files should not be served (they are only there for development purposes), but the files should be gzip-compressed and those served instead. The only exceptions to this are the .data file, which can be left uncompressed since UE4 already compresses that (you can try gzip compressing it, and verify that the size will not reduce anymore), and the main .html file. The gzip-compressed files are about 20%-30% of the size of the uncompressed ones.
b) As result of above, when you have both .js and .jsgz file with the same name, the .js file is not needed, and only .jsgz should be served. You may need to flip a bool switch in the .html file that says something like “serveCompressedAssets = false/true;” to make the .html file request the .jsgz files. The *gz files need to be served on the web server with the HTTP response header “Content-Encoding: gzip”.
c) There should already be a .asm.jsgz file in the output directory, but for some reason it is not shown in your listing. For any missing *gz file, manually compress them to gzip. (This should happen automatically by UE4)
d) The presence of foo.asm.js file means you have deployed to older asm.js spec. The newer WebAssembly spec replaces this with a .wasm file, and greatly reduces the size. Make sure to have latest UE 4.17 and tick the checkbox in Project Packaging Settings to enable targeting deploying wasm. The .wasm file should be compressed as well, and served as .wasmgz.
For reference, with the above savings, the main UE4 engine file of the UE4 “Zen Garden” WebAssembly demo at http://mzl.la/webassemblydemo is 9,660,956 bytes in “wasmgz”. This is down from the 137MB of .asm.js shown in your listing.
Hey man! Thank you very much for the tips! I finally was able to make it smaller. My UE4Game-HTML5-Shipping.wasmgz now has only 13,8 mb.
I didn’t know that I had to compile the engine source code to make this new feature work. I’ve always used the engine installing the executable available in the Unreal website.
Now I need to learn how to upload this to my website to test if it will work properly online. Do you know any material about this that I can read? I’ve searched through the engine documentation but didn’t find anything.
Unfortunately the needed steps for serving the build on a web server differ for each CDN backend, since they each have different dashboard UIs and/or configuration files. Try googling for "how to enable content encoding gzip in " to find info about how to set up the needed compression header for web hosting. For example, if using Apache, the setup would look something like this:
