Hologram Shader

Using Unity Shader Lab (HLSL(CG))

Implementing Rim Lighting Effect then Setting the Alpha to fade.

Fewer depth details Might be Produced by turning by Including a pass and getting the Z-Buffer calculation

Hologram CG program

CGPROGRAM
    
         #pragma surface surf Lambert alpha:fade
 
         #pragma target 3.0
 
         float4 _RimColor;
         half _RimRange;
         struct Input
         {
        
             float3 viewDir;
         };
 
         void surf (Input IN, inout SurfaceOutput o)
         {
             half rim=1- saturate(dot(normalize(IN.viewDir),o.Normal));
             o.Emission=_RimColor.rgb*pow(rim,_RimRange)*10;
             o.Alpha=pow(rim,_RimRange);
 
         }
         ENDCG

For Turning Depth Details off use a pass before your CG Program

Pass{
         ZWrite on
         ColorMask 0 
       
       }

For Unity App Performance Optimization :

Unity Performance Optimization