Some semi-transparent presets, such as those with water or glass, may require one or more media inputs to be added manually. This is done so that the Substance node and attached maps can correctly create a plausible effect. When you load a Substance Texture preset that requires media input, one or more input nodes are attached to the Substance node in the schematic.
To specify media as the input source:
Select the Input node in the schematic.
Select the appropriate media in the Media list.
Click Apply.
Double-click the Input node in the schematic to access the Input menu.