If i have a metal texture, whats the right way to make a specular map out of it ?
i know its a b/w image of the same texture but how should i do it ?
just desatirate ?
and for the normal texture , does gimp have a plug for this ?
i just found that to make specular maps , the white is the bright anf the black is not bright at all.
Also i founfthis tuto on making normal maps out of difuse maps
, but is there a plug or software to make real normal maps ( the ones with more colors not just b/w ) ?
Normal maps are colored, whereas bump maps are just B&W, like specular ones.
I guess there is a plugin for normal maps with Gimp.
Also you can bake your own normal maps with Blender.
For GIMP:
download NormalMap GIMP Plugin from here
and follow this guide to create your first normal map: tutorial
For Photoshop:
download nvidia plugin.
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