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What size should my images be when making a DDS cubemap?

When I make a skyboxes out of 1024x1024 PNGs, it looks terrible http://puu.sh/94l1J/9285049ffd.png

Anything above 1024 doesn't import, it just freezes the editor and causes it to consume all of my 12gb of ram. I'm putting 6 png files side by side in photoshop and saving as a DDS cubemap.

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asked May 28 '14 at 03:47 AM in Using UE4

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Hi 神,

I'm not sure you would want to use a cube map for the skysphere in your world. These are utilized more for getting reflections out of the world, where you wouldn't need to have as detailed an image.

If you were to open a new level, or your current project depending on if you used the starter content or not, you can look at the default example that is included. There is a mesh (SM_SkySphere), a 2048x2048 texture of the sky (t_sky_blue), and a material that was created using this sky texture (m_Sky_Panning_Clouds2).

If you look at this example it should break down how our skysphere material is done and help you with your material.

Thank you!


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answered May 29 '14 at 12:05 PM

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Tim Hobson ♦♦ STAFF
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I can't see your picture link is broken. But I have, I guess, similar problem. When I import 2048x2048 dds cubemap it imports very slowly (about 15 minutes) and then it is all blurry and not cool as it was in Photoshop. But when I changed Mip Gen Settings to NoMipmaps (it is inside created texture cube asset in UE4 under Level of Detail category) then everything got great and not blurry.

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answered Nov 10 '14 at 08:19 PM

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