CutOut diffuse shader visible from both sides on a plane?

Questions & Answers
1

Hi! I am using cut out diffuse shader to make people and trees. For this I imported a plane as an FBX model and used the PSD textures with alpha channels.

However, the people/trees are visible only from one side on the plane, which I believe is the direction in the which the normal is pointing. I want it to be visible from front and back both.

How can I do that? Can I do that? Or I’ll have to keep two planes close to each other an facing in opposite directions so that they look like a single surface and together are visible from front and back?

Thanks for reading!

2

You need to make your own shader based on Transparent/Cutout/Diffuse with culling set to off. You can get the source of the built-in shaders here.

EDIT:
Original Transparent/Cutout/Diffuse is:

Shader "Transparent/Cutout/Diffuse" {
Properties {
	_Color ("Main Color", Color) = (1,1,1,1)
	_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
	_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
}

SubShader {
	Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}
	LOD 200
	
CGPROGRAM
#pragma surface surf Lambert alphatest:_Cutoff

sampler2D _MainTex;
fixed4 _Color;

struct Input {
	float2 uv_MainTex;
};

void surf (Input IN, inout SurfaceOutput o) {
	fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
	o.Albedo = c.rgb;
	o.Alpha = c.a;
}
ENDCG
}

Fallback "Transparent/Cutout/VertexLit"
}

Modified version with culling off:

Shader "Transparent/Cutout/Diffuse" {
Properties {
	_Color ("Main Color", Color) = (1,1,1,1)
	_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
	_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
}

SubShader {
	Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}
	LOD 200
	Cull Off
	
CGPROGRAM
#pragma surface surf Lambert alphatest:_Cutoff

sampler2D _MainTex;
fixed4 _Color;

struct Input {
	float2 uv_MainTex;
};

void surf (Input IN, inout SurfaceOutput o) {
	fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
	o.Albedo = c.rgb;
	o.Alpha = c.a;
}
ENDCG
}

Fallback "Transparent/Cutout/VertexLit"
}