I have problem using normal maps created in Substance Designer. It ignores the small details of the normal map texture. There is a node “normal to height” in SD and I used it as a bump texture.
The bump texture is good for small details but the look of the stones are not right, however with normal map the stones are just what it should be.
Here is the node setup. (Check “uber shader tutorial” to see how the “Reflection” node was made but its not important)
Using the bump node:
Using the Normal Map node:
If I could combine the two somehow would be the best. Generally using the bump with black and white image has better results with other textures so I don’t really know what to do.