正反面都正确接受光源的双面材质

Shader "Transparent/Diffuse DoubleSided" {

Properties {

_Color ("Main Color", Color) = (1,1,1,1)

_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}

}

SubShader {

Tags { "RenderType"="Opaque" }

LOD 300

Pass {

Tags { "LightMode" = "Vertex" }

Cull Back

ZWrite On

Lighting On

CGPROGRAM

#pragma vertex vert

#pragma fragment frag

#include "UnityCG.cginc"

sampler _MainTex;

float4 _MainTex_ST;

float4 _Color;

struct a2v {

float4 vertex : POSITION;

float3 normal : NORMAL;

float4 texcoord : TEXCOORD0;

};

struct v2f {

float4 pos : POSITION;

float2 uv : TEXCOORD0;

float3 color : TEXCOORD1;

};

v2f vert(a2v v) {

v2f o;o.pos = mul(UNITY_MATRIX_MVP, v.vertex);

o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);

o.color = ShadeVertexLights(v.vertex, v.normal);

return o;

}

float4 frag(v2f i) : COLOR {

float4 c = tex2D(_MainTex, i.uv)*_Color;

clip(c.a-0.9);

c.rgb = c.rgb * i.color * 2;

return c;

}

ENDCG

}

Pass {

Tags { "LightMode" = "Vertex" }

Cull Front

ZWrite On

Lighting On

CGPROGRAM

#pragma vertex vert

#pragma fragment frag

#include "UnityCG.cginc"

sampler _MainTex;

float4 _MainTex_ST;

float4 _Color;

struct a2v {

float4 vertex : POSITION;

float3 normal : NORMAL;

float4 texcoord : TEXCOORD0;

};

struct v2f {

float4 pos : POSITION;

float2 uv : TEXCOORD0;

float3 color : TEXCOORD1;

};

v2f vert(a2v v) {

v2f o;o.pos = mul(UNITY_MATRIX_MVP, v.vertex);

o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);

o.color = ShadeVertexLights(v.vertex, -v.normal);

return o;

}

float4 frag(v2f i) : COLOR {

float4 c = tex2D(_MainTex, i.uv)*_Color;

clip(c.a-0.9);

c.rgb = c.rgb * i.color * 2;

return c;

}

ENDCG

}

}

FallBack "Diffuse"

}