[Unity] Simple Shaderlab 1 || uGui用简单shader - 流光

 1 Shader "Sprites/Default_Flowlight"
 2 {
 3     Properties
 4     {
 5         [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
 6         _Color ("Tint", Color) = (1, 1, 1, 1)
 7         [MaterialToggle] PixelSnap ("Pixel snap", float) = 0
 8         
 9         _FlowlightTex ("Flowlight Texture", 2D) = "white" {}
10         _Power ("Power", float) = 1
11         _SpeedX ("SpeedX", float) = 1
12         _SpeedY ("SpeedY", float) = 0
13     }
14 
15     SubShader
16     {
17         Tags
18         { 
19             "Queue"="Transparent" 
20             "IgnoreProjector"="True" 
21             "RenderType"="Transparent" 
22             "PreviewType"="Plane"
23             "CanUseSpriteAtlas"="True"
24         }
25 
26         Cull Off
27         Lighting Off
28         ZWrite Off
29         Blend One OneMinusSrcAlpha
30 
31         Pass
32         {
33         CGPROGRAM        
34             #pragma vertex vert
35             #pragma fragment frag
36             #pragma multi_compile _ PIXELSNAP_ON
37             #include "UnityCG.cginc"
38             
39             struct appdata_t
40             {
41                 float4 vertex : POSITION;
42                 float4 color : COLOR;
43                 float2 texcoord : TEXCOORD0;        
44             };
45 
46             struct v2f
47             {
48                 float4 vertex : SV_POSITION;
49                 fixed4 color : COLOR;
50                 half2 texcoord : TEXCOORD0;
51                 half2 texflow : TEXCOORD1;
52             };
53             
54             fixed4 _Color;
55             sampler2D _FlowlightTex;
56             fixed4 _FlowlightTex_ST;
57             fixed _SpeedX;
58             fixed _SpeedY;
59 
60             v2f vert(appdata_t IN)
61             {
62                 v2f OUT;
63                 OUT.vertex = mul(UNITY_MATRIX_MVP, IN.vertex);
64                 OUT.texcoord = IN.texcoord;
65                 OUT.texflow = TRANSFORM_TEX(IN.texcoord, _FlowlightTex);
66                 OUT.texflow.x += _Time * _SpeedX;
67                 OUT.texflow.y += _Time * _SpeedY;
68                 OUT.color = IN.color * _Color;
69                 #ifdef PIXELSNAP_ON
70                 OUT.vertex = UnityPixelSnap (OUT.vertex);
71                 #endif
72 
73                 return OUT;
74             }
75 
76             sampler2D _MainTex;
77             float _Power;
78 
79             fixed4 frag(v2f IN) : SV_Target
80             {
81                 fixed4 c = tex2D(_MainTex, IN.texcoord);
82                 fixed4 cadd = tex2D(_FlowlightTex, IN.texflow) * _Power;
83                 cadd.rgb *= c.rgb;
84                 c.rgb += cadd.rgb;
85                 c.rgb *= c.a;
86                 return c;
87             }
88         ENDCG
89         }
90     }
91 }