Unity shader for inside visible transparent texture.

UnlitInsideTransparentTexture.shader

Shader "Unlit/UnlitTransparentTexture"
{
	Properties {
	    _Color ("Main Color (A=Opacity)", Color) = (1,1,1,1)
	    _MainTex ("Base (A=Opacity)", 2D) = ""
	}
	 
	Category {
	    Tags {"Queue"="Transparent" "IgnoreProjector"="True"}
	    Cull front    // ADDED BY BERNIE, TO FLIP THE SURFACES
	    ZWrite Off
	    Blend SrcAlpha OneMinusSrcAlpha
	 
	    SubShader {Pass {
	        GLSLPROGRAM
	        varying mediump vec2 uv;
	       
	        #ifdef VERTEX
	        uniform mediump vec4 _MainTex_ST;
	        void main() {
	            gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
	            uv = gl_MultiTexCoord0.xy * _MainTex_ST.xy + _MainTex_ST.zw;
	        }
	        #endif
	       
	        #ifdef FRAGMENT
	        uniform lowp sampler2D _MainTex;
	        uniform lowp vec4 _Color;
	        void main() {
	            gl_FragColor = texture2D(_MainTex, uv) * _Color;
	        }
	        #endif     
	        ENDGLSL
	    }}
	   
	    SubShader {Pass {
	        SetTexture[_MainTex] {Combine texture * constant ConstantColor[_Color]}
	    }}

	}
}