1 // Upgrade NOTE: replaced '_World2Object' with 'unity_WorldToObject'

 2

 3 // Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'

 4

 5 Shader "Custom/RoleMaskShader"

 6 {

 7     Properties

 8     {

 9         _MainTex ("Texture", 2D) = "white" {}

10         _MainColor("MainColor", COLOR) = (1,1,1,1)

11         _ShadowColor("Color", COLOR) = (1,1,1,1)

12         _DiffuseScale("DiffuseScale", float) = 0.5

13     }

14     SubShader

15     {

16         //Tags { "RenderType"="Opaque" }

17         //LOD 100

18

19         Pass//第一个pass

20         {

21             Tags{"RenderType" = "Transparent" "Queue" = "Transparent"}

22             ZWrite off//关掉深度写入

23             ZTest greater//深度大于的通过,这里直接关掉也行

24             Blend SrcAlpha OneMinusSrcAlpha//混合,必须要开

25             CGPROGRAM

26             #pragma vertex vert

27             #pragma fragment frag

28             #include "UnityCg.cginc"

29

30             v2f_img vert(appdata_base a2v)

31             {

32                 v2f_img o;

33                 o.pos = UnityObjectToClipPos(a2v.vertex);

34                 o.uv = a2v.texcoord;

35                 return o;

36             }

37             fixed4 _ShadowColor;

38             fixed4 frag(v2f_img i) : SV_TARGET0

39             {

40                 return _ShadowColor;//被挡住可以做描边等等

41             }

42

43             ENDCG

44         }

45         Pass//第二个pass,随意,这里写的是一个halfLambert

46         {

47             Tags{"RenderType" = "Transparent" "Queue" = "Transparent"}

48             CGPROGRAM

49             #pragma vertex vert

50             #pragma fragment frag

51             #include "UnityCg.cginc"

52             #include "Lighting.cginc"

53

54             struct v2f

55             {

56                 float4 pos : POSITION;

57                 fixed2 uv : TEXCOORD0;

58                 float3 normal : TEXCOORD1;

59             };

60

61             v2f vert(appdata_base a2v)

62             {

63                 v2f o;

64                 o.pos = UnityObjectToClipPos(a2v.vertex);

65                 o.uv = a2v.texcoord;

66                 o.normal = mul(a2v.normal, (float3x3)unity_WorldToObject).xyz;

67                 return o;

68             }

69             fixed4 _MainColor;

70             sampler2D _MainTex;

71             float _DiffuseScale;

72             fixed4 frag(v2f i) : SV_TARGET0

73             {

74                 fixed4 texColor = tex2D(_MainTex, i.uv);

75                 float halfLambert = saturate(dot(normalize(i.normal), normalize(_WorldSpaceLightPos0.xyz))) * _DiffuseScale + (1 - _DiffuseScale);

76                 fixed3 diffuseColor = _LightColor0.rgb * texColor.rgb * halfLambert * _MainColor;

77                 return fixed4(diffuseColor, 1);

78             }

79

80             ENDCG

81         }

82     }

83

84     FallBack "VertexLit"//影子,和unity渲染阴影机制有关,shadowCaster

85

86 }