I just downloaded the free trial of Substance Designer and am now playing around with it. There is something that I find frustrating about it, however. If I put a grayscale image into the height map output node, it ignores it, even when I right click and choose "View outputs in 3D View". It works if I convert it to a normal map and plug it into the normal output node, but I want a displacement map, not a normal map. How do I fix this?
I don't know if you already figured this out but the effect of the height map shuould be visible if you go to Meterials-Default-Edit in your 3D View and turn up the slider of the scale for the height map. If you run into another problem with Substance softwares I think you get a quicker answer if you use the the Allegorithmic Forum on their website. Don't know it a lot of people on here actually use Designer. 
williamatics What does not work? How does your node-setup and height map look?
bbsdwerbeagentur The diffuse, specular, and glossiness nodes are solid black, the normal node has a plain normal color, and the height node has a grayscale noise. What doesn't work is that it acts as if there is no displacement.
williamatics Try to use any Noises texture like BnW Spots or Grunge Map and plug it in the Normal output node with a Normal or Normal Sobel node in between. Now you should see a difference when you increase the value of the Height scale. It seems that a Normal Color node isn't enough and that you need any greyscale texture in combination with a Normal Node. Try something like this in the picture. Does it work for you now?
That works, but I want a displacement map, not a normal map. Normal maps aren't good for larger details, only smaller ones. I want displacement.