The purpose of the normal map is to replace the existing normals per vertex of the mesh into new ones per pixel of the texture in order to fake details.

Since it provides only a direction it always has a magnitude (or length) of 1.0, and its XYZ coordinates are mapped to the RGB channels of a color image, where coordinate 0 for the vector is mapped to the value of 0.5 in the image. Normals are vectors representing the direction a part of a mesh is facing, so it is shaded accordingly by the rendering engine.

The height map needs to be processed to be converted into a usable normal map, using the Normal node as shown below.Ī normal map represents a mesh's normals per pixel of the texture. In this case, the resulting normal vectors will be incorrect and the model will be shaded incorrectly (learn more below). Double-clicking on the diffuse shows us this image.The height data is being passed directly to the Normal output. I've also downloaded the rendering texture It's interesting because we have two JPGs in there, a diffuse and a normal. If you're following along with the exercise files, you'll see this image already in your exercise files. I'll click on Download Image and save this image into my chapter six exercise files folder.

So what we can do is rather than use the image as a texture, create our own material in Substance Designer and later, add in a function to allow users What we can see here as we scroll down on the website and download a rendering texture. This is a useful workflow because a lot of the patterns we want to use are very, very complex, and we could redraw them in Substance Designer, but sometimes we need imported artwork as the website says.

A really complex fabric, using Adobe Illustrator to trace an image and then cleaning up that result and bringing it into Substance Designer.

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