 Gradients with position map Gradients in substance painter can be complex to do if we don't use the right tool, for this example we are going to make a gradient from red to gray in this character's pants. To start we will need to have the position map baked, If it isn't, you can bake it directly in substance painter. We start by creating a fill layer on top of the base color layer.  We create a mask on the gradient layer and add a 3d linear gradient generator.  Inside the generator we have the options of 3d position start and 3d position end, for the gradient to work correctly we have to pick the color of the model's position map.  When we return to the material display mode you will see the result of the gradient.  Bake lighting Baking lighting is a very simple and very useful process that can help us to highlight parts of the model and if the final model is not going to be affected by real lighting it can provide a more realistic touch. We will start by creating a fill layer with the properties that we want to give the light to which we will add a light generator.  Inside the generator we will find the properties of the generator such as the direction and the height or the intensity. Once we have everything configured to our liking we will have to change the layer fusion option in case the light can work well with overlay, soft light although the best way is to try which one best matches the result we are looking for.
Anchor points The anchor points are used for the intelligent masks to detect deformations of normals made in other layers that are not mapped to the normals map. In this example we have a layer with height and we want the mask that we are going to create next to paint the borders automatically. 
To solve it we must enter the options of the smart mask and modify some attributes. The first is in microdetails change the first two parameters to true the second is at the bottom, in Micro height, there we select anchor points and look for ours (its recommended to name the anchor points correctly) after doing this everything should work correctly.
 Work the roughness The roughness map is one of the necessary ones in a PBR material, and also one of the most important when it comes to giving detail to a model, so it is important that in the PBR models the roughness has work and detail. In the first image we have a model with a practically flat roughness, in the second image we have the same model with a much more worked roughness.
To achieve these results we can use smart masks, occlusion and curvature masks and of course textured brushes to give wear details. Although it may seem very basic, the brightness changes of a material are what help to give a model realism. Layer blending mode
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