my sim looks black and bright the mesh (resolved) :D

Hi there monas, the problem here comes from your Normal map

The alpha channel was apparently not saved (as it happens sometimes with photoshop CC, kind of a known bug) and ended up full white.
You need to manage to save the alpha channel on your normal map. Or use no normal in between if you wanna test.

I believe last time I got the issue, I opened the faulty normal map.dds I created and copied the alpha channel from the original normal map (where it was created) onto the white alpha of the "faulty normal map.dds" to save again in dtx5. This method should work I believe.

Just make sure to open your "final" normal map.dds in photoshop before importing to make sur the alpha was saved properly.

Oh boy I am getting rusty. Took me way too long to find this.

You shadow is the one at fault here.
It is too small. You made it 512/1024 instead of 1024/2048

Simply resize it and you can work on the rest (like, the normal map is not giving satisfying results and the channel you copied on the alpha is not the red one. For more info check this tut. Your specular needs to be reworked, the seams of the texture etc. But that's ok, you will learn plenty in the process :D)

Hi Monas, first of all, in the normal map the red channel is copied to the alpha and the green to the rest because it's the way to convert a "Normal map" to a "Bump map" (which is the game uses to read the effect, it uses a greyscale ranges of pixels rather than the bluish that you get directly from a normal map.

Regarding your new issue, it might be that this time the specular is the problem. You need to re-share the files in order for us to help you with that. All items for the game but particulary CAS items have a lot of maps that make the final result. Any of this maps being altered or wrong can cause a bad looking result. It just takes some time to learn it but you surely can do it! If you have problems with the tutorials and your language (that I believe it's spanish) let me know. I also speak spanish and I agree that sometimes the translator can give you rough results that are not fully understandable. However, for the forum is required for you to write in english so everyone can understand it. This doesn't mean that you cannot also include a text (a copy of the message) in your language as well.

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Hola Monas, primero que nada en la creación del normal map se utiliza el copiado del canal rojo al alpha y el verde a los demás como forma de convertir la imagen "a colores" que resulta de la creación de un "Normal map" a una que sea en escala de grises que es lo que el juego utiliza para generar el efecto de relieve. Tómalo como una forma de convertirlo, un paso necesario para tener un "bump map", no es necesario extender en los porque de eso si recién estás comenzando.

Con respecto a tu nuevo problema, es posible que sea el specular el problema en este caso. Debes compartir nuevamente tus archivos, .package y .blender para que podamos volver a verlos y ayudarte a resolverlo. Particularmente los items de CAS están compuestos por muchas imágenes y mapas que hacen el resultado final. Si alguno de estos se ve alterado el resultado final puede ser no el esperado. A veces cuesta entenderlo al principio pero es cuestión de práctica y tiempo. Seguro que lo consigues. Si tienes problemas con los tutoriales y el uso del traductor (ya que a veces no da los mejores resultados), dime y quizás pueda ayudarte en lo que sepa. También hablo español. Aunque, para el foro es necesario el uso de inglés siempre puedes incluir además un mensaje (parecido como yo he hecho aquí) en tu lengua de origen por si alguien que habla español también quiere o puede ayudarte.

Suerte!