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    Size of Map increased dramatically

    hey all,

    I have been playing arround with a map for some time now. It was pretty stable in size (approx. 198MB to 240MB) now I wanted to reduce the size of the map and shrinked the level as much as possible.

    Additionally I shrinked the light mass volume (resp. made more precise).

    After I rendered it, it suddenly increased in size by additional 110MB.

    I also played arround with DOF for the first time... Has somebody an idea what kind of factor can increase the size such strongly?

    Additionally I changed the skydome...

    It was always rendered with the same settings.

    Any idea would be great.

    Kind regards,

    dK

    #2
    Increasing the resolution of your lightmap's will increase your levels size by quite a bit. I know on my other level, I wanted to see what it would look like with most of my assets at 512 and the BSP at 2, it went up from 30mb to 90mb.

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      #3
      When you say 'rendered', I'm assuming you mean 'built'. If that's the case, the additonal size is the lightmaps that hadn't been generated before.

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        #4
        Thanks for the answers so far.

        Yes, I mean build. My problem is, that I do not understand why it increased, even so the terrain is smaller then before. I have build the previouse version with the same settings.

        And now my optimized package is suddenly that much bigger...

        I did two major changes in the map: Exchange of the skybox into one with moving clouds and exchange of a the static mesh for showing water with an BSP.

        Do you think that one of those could be the reason?

        dK

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          #5
          Well the thing you can always do is change the things the way they were before (skybox, water) and see if the size stais the same.

          But I doubt that skybox could be the source of your problem. If I understand you correctly you replaced the "water" static mesh with a BSP surface or rectangle - now here we could have a possible offender for your 100MB increase in map size - Let me ask you how big the BSP is in editor units and what is the Lightmap resolution of that BSP - Rightclick on the BSP surface> Surface Properties - Lightmap Resolution (watch out - the smaller number here means a bigger resolution - default is 32)

          If you want to check deeper what is eating your memory size check out the primitive stats of your level along inside with content browser:
          Or goto View dropdown menu > Browser Windows > Primitive Stats.
          Check out the Resource Size, Lightmap and Shadowmap rows to se what static meshes or terrain or BSP (refered as "Model" here) eats your memory.

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            #6
            Hey Nathillien,

            thanks for the hint with the Primitive Stats. Thats really helpful in general :-)

            However, I replaced yesterday night the water surface BSP again with a static mesh (in fact I just converted it) and there you go. This morning the size of the map was reduced by 100MB.

            So the issue is solved. I did underestimate how much more a BSP swallows against a static mesh if it goes to large objects.

            Here are a few screens of the level so far :-)



            dK

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