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Cooked .UMAPs inflating in size.

Hello,

I'm having some issues with cooking a project in UE 4.13. The maps in the content folder before cooking are 3.5mb, but when cooked are jumping up to 10.5mb. This is causing some significant issues with the project as the map content folder is being blown out of it's intended size.

I'm wondering what could be causing this discrepancy in file-size and what could be done to resolve it. These map files have nothing but a single 500kb heightmap landscape file in them. Lighting is fully dynamic, as is navmesh, and WPO is not being baked into the collision. There are no actors in any of the map files, not even reflection captures, and the landscape is painted with a fill of a single layer. Distance fields are enabled.

These map files are larger than maps with twice the resolution height maps from previous builds.

I would appreciate any help in this matter, Thank you.

Product Version: UE 4.13
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asked Sep 24 '16 at 08:03 AM in Packaging & Deployment

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str-Luke
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Hi str-Luke,

This is somewhat a known issue as the process of packaging will increase your file size. See this Bug report: https://issues.unrealengine.com/issue/UE-11529

I updated the affected versions to bring attention to the report although it may stay backlogged. There are still things you can do to get around this issue though! Try out this documentation although it's for APK it can still apply to your case: https://docs.unrealengine.com/latest/INT/Platforms/Android/ReducingAPKSize/

Another thing I did was, in my packaging settings turn off "Use PAK file" this merely keeps your files separate rather than clumping them together and that may help you out depending on your project especially if there isn't a lot of content to clump.

Let me know if any of this helps,

Ed Burgess

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answered Sep 26 '16 at 08:21 PM

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