Useful for materials such as cloth or vegetation.

Author: przemyslawzaworski

Diff for: transmission.shader

@@ -0,0 +1,59 @@
+//Shader controls how much light is passed through object when the light source is behind the surface currently being rendered. 
+//This can be useful for materials such as cloth or vegetation.
+
+Shader "Transmission" 
+{
+	Properties 
+	{
+		_MainTex ("Diffuse map", 2D) = "white" {}
+		_Range ("Range", Range(0, 3)) = 1
+	}
+	SubShader 
+	{
+		Cull Off
+		Tags {"RenderType"="Opaque"}
+		Pass 
+		{
+			Tags {"LightMode"="ForwardBase"}                      
+			CGPROGRAM
+			#pragma vertex vertex_shader
+			#pragma fragment pixel_shader
+			#pragma target 3.0
+			
+			float4 _LightColor0, _MainTex_ST;
+			sampler2D _MainTex;
+			float _Range;
+			
+			struct structure 
+			{
+				float4 vertex : SV_POSITION;
+				float2 uv : TEXCOORD0;
+				float3 normal : TEXCOORD1;
+			};
+			
+			structure vertex_shader (float4 vertex:POSITION,float3 normal:NORMAL,float2 uv:TEXCOORD0) 
+			{
+				structure vs;
+				vs.vertex = UnityObjectToClipPos( vertex );
+				vs.normal = normalize(mul(unity_ObjectToWorld,normal));				
+				vs.uv = uv;
+				return vs;
+			}
+			
+			float4 pixel_shader(structure ps) : COLOR 
+			{
+				float3 AmbientLight = UNITY_LIGHTMODEL_AMBIENT.rgb; 			
+				float3 NormalDirection = ps.normal;
+				float3 LightDirection = normalize(_WorldSpaceLightPos0.xyz);
+				float3 LightColor = _LightColor0.rgb;
+				float NdotL = dot( NormalDirection, LightDirection );
+				float3 ForwardLight = max(0.0, NdotL);
+				float3 BackLight = max(0.0, -NdotL ) * float3(_Range,_Range,_Range);
+				float3 DiffuseColor = (ForwardLight+BackLight) * LightColor + AmbientLight;
+				float3 DiffuseMap = tex2D(_MainTex,ps.uv*_MainTex_ST.xy+_MainTex_ST.zw).rgb;
+				return float4(DiffuseColor*DiffuseMap,1.0);
+			}
+			ENDCG
+		}
+	}
+}