Whether you want to create an immersive world, establish your portfolio, or bring fresh ideas to life, optimized material workflows can help you accomplish your goals quickly. That’s why we’ve teamed up with Adobe to present the new Adobe Substance 3D plug-in on the Unity Asset Store. With the Adobe Substance 3D plug-in, artists can save time typically spent switching between tools. This works by leveraging exposed parameters on a Substance material (.SBSAR file) right in Unity, to achieve a wide variety of looks for stronger overall visuals.
Substance parameters enable real-time texture updates in-Editor and at runtime. Such parametric materials can be created either through Substance 3D Designer, which supports both Unity Standard and Standard (specular) shaders, or online via Substance 3D Assets and Community Assets libraries.
Source: Unity Technologies Blog