How to Make two different property material in one shader Blend one snow (opaque and second having Ice (Translucent)
Set the shader to translucent and then adjust the opacity from 1 for opaque and lower it until it becomes sufficiently transparent for your ice.
You cannot switch between a true opaque shader and a true translucent shader in a single material. You can have a translucent material with a high opacity value, but it will not behave like a true opaque materials for technical reasons.
Because of this and many other reasons related to the limitations of translucent materials, most ice in games is actually made with a fully opaque shader. Ben Cloward has a YouTube video showing one way to do this. Ice Shader Part 2 - Advanced Materials - Episode 6 - YouTube
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