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Creating normal maps


Superabound

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Can anyone explain to me the exact process for creating/saving normal maps for Dragon Age?

 

Every time i save i get a weird gif-like dithering in the image and it makes the character it's applied to look blotchy. Im not sure how exactly i should be saving the image or what settings i should be using.

 

 

[edit]Im using Photoshop with the NVIDIA dds plug-in if that helps.

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For Dragon Age, generate the normal maps like you would normally, but make sure you save the .dds as a DXT5_NM the first time you save your normal map, which will put the colour channels in the correct sequence. If you need to edit the map manually after that (e.g to blur an area), save it as a standard DXT5 so that Photoshop doesn't rejigger the channels again.

 

Hope this helps.

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