what type of texture is this…again

[Joseph Bryant]

So I am trying to port witcher 2 models into neverwinter nights. I have permission from CD prodjekt red. Some of the models have normal blue-ish normal’s, others have this pinkish normal. I do not know what it is or how to apply it to the models. I think it looks like a normal and a specular, because it has a grey channel alpha. But I do not really know. If it is two maps could some one tell me how I could separate them. also these are maps from a DirectX game going to a OpenGL game. I do know you have to flip the green channel on the normal, but I do not know if I have to do that to this.

[Jonathan Gonzalez]

This looks most like a normal map, albeit it looks a bit lighter than what I’m used to seeing. Here is an article discussing it: https://blog.cgcookie.com/normal-vs-displacement-mapping-why-games-use-normals/

[plasmavoyage]

@jgonzalez My first guess was “normal map” too, but I have never seen a normal map that is completely pink like that. Guess you learn new stuff every day. q.q

[Joseph Bryant]

ok so I checked the image in gimp, and a normal blue normal has info in the red and green channels, the blue channel is just plain blue and has a black alpha. this one has info in the green channel and info in the alpha that looks like a specular and the red and blue channels are plain. I may just have to hit up cd project red’s forums, or make my own normal and spec map.

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