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===== Related to textures =====

==== Creating textures ====

The favorite texture format the ''.dds'' (DirectDraw Surface); it can be uncompressed or compressed with or without alpha.

==== Textures Names ====

Some part of the material texture are just free files:

| X | diffuse |
| X_n | normal |
| X_nh | normal (rbg) + displacement (in the alpha channel) |
| X_spec | specular |

Other needs ''.nif'' model edit, the name is then freeform. But usually are called as the first column.

| X_ao | detail map in the nif |
| X_glow | glow map in the nif |

==== ImageMagick to create textures ====

Uncompressed: ''$ convert input.png -define 'dds:compression=none' output.dds''

Compressed without alpha: ''$ convert input.png -define 'dds:compression=dx1' output.dds''

Compressed with alpha: ''$ convert input.png -define 'dds:compression=dx5' output.dds''

To make the ''nh'' we need to combine normal and displacement, one can do:

''convert normal.png displacement.png  -compose copy-opacity -composite  'dds:compression=dx5' output_nh.dds''

One has to be sure that ''displacement.png'' is grayscale mode without alpha channel.

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