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效果和参数
参数功能
| MainTex | 主贴图 |
| MainU | 主贴图U动画 |
| MainV | 主贴图V动画 |
| ShapeTex | 形状贴图。和遮罩同功能 |
| MaskTex | 遮罩图，一条直线，考虑改成UV算法。少一张贴图 |
| MaskDistance | 遮罩比例。0是完全遮住，1是完全显示。 |
| FlowTex | 流光贴图，让水更逼真。使用该贴图的UV流动叠加在主贴图上的效果。 |
| FlowU | 流光贴图的U动画 |
| FlowV | 流光贴图的V动画 |
| LineTex | 波浪线贴图 |
| LineColor | 波浪线颜色 |
| LineMask | 波浪线遮罩偏移 |
| LineU | 波浪线U动画 |
| LineV | 波浪线V动画 |
源码
Shader "MyMobile/Energy Sink" {
Properties {
_MainTex ("MainTex", 2D) = "white" {}
_MainU ("MainU", Range(-0.5, 0.5)) = 0
_MainV ("MainV", Range(-0.5, 0.5)) = 0
_ShapeTex ("ShapeTex", 2D) = "white" {}
_MaskTex ("MaskTex", 2D) = "white" {}
_MaskDistance ("MaskDistance", Range(0, 1)) = 0
_FlowTex ("FlowTex", 2D) = "white" {}
_FlowU ("FlowU", Range(-0.5, 0.5)) = 0
_FlowV ("FlowV", Range(-0.5, 0.5)) = 0
_LineTex ("LineTex", 2D) = "white" {}
_LineColor ("LineColor", Color) = (0.5,0.5,0.5,1)
_LineMask ("LineMask", Range(-0.2, 0.2)) = 0
_LineU ("LineU", Range(-1, 1)) = -0.13
_LineV ("LineV", Range(-1, 1)) = 0
[HideInInspector]_Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
}
SubShader {
Tags {
"IgnoreProjector"="True"
"Queue"="Transparent"
"RenderType"="Transparent"
}
Pass {
Name "FORWARD"
Tags {
"LightMode"="ForwardBase"
}
Blend SrcAlpha OneMinusSrcAlpha
ZWrite Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#define UNITY_PASS_FORWARDBASE
#include "UnityCG.cginc"
#pragma multi_compile_fwdbase
sampler2D _MainTex; float4 _MainTex_ST;
sampler2D _FlowTex; float4 _FlowTex_ST;
sampler2D _LineTex; float4 _LineTex_ST;
sampler2D _MaskTex; float4 _MaskTex_ST;
sampler2D _ShapeTex; float4 _ShapeTex_ST;
float _MaskDistance,_LineMask;
float _FlowU,_FlowV,_MainU,_MainV,_LineU,_LineV;
float4 _LineColor;
struct a2v {
float4 vertex : POSITION;
float2 texcoord0 : TEXCOORD0;
float4 vertexColor : COLOR;
};
struct v2f {
float4 pos : SV_POSITION;
float2 uv0 : TEXCOORD0;
float4 vertexColor : COLOR;
};
v2f vert (a2v v) {
v2f o ;
o.uv0 = v.texcoord0;
o.vertexColor = v.vertexColor;
o.pos = mul(UNITY_MATRIX_MVP, v.vertex );
return o;
}
float4 frag(v2f i) : SV_Target {
float2 FlowUV = (i.uv0+float2((_FlowU*_Time.g),(_Time.g*_FlowV)));
float4 _FlowTex_var = tex2D(_FlowTex,TRANSFORM_TEX(FlowUV, _FlowTex));
float2 MainUV00 = (i.uv0+_FlowTex_var.r+(i.uv0+float2((_MainU*_Time.g),(_Time.g*_MainV))));
float4 _MainTex_var = tex2D(_MainTex,TRANSFORM_TEX(MainUV00, _MainTex));
float LineMaskU = 0.0;
float2 LineUV = (i.uv0+float2((_LineU*_Time.g),(_Time.g*_LineV)));
float4 _LineTex_var = tex2D(_LineTex,TRANSFORM_TEX(LineUV, _LineTex));
float2 MaskTexUV = (i.uv0+float2(LineMaskU,(1.0 - (_MaskDistance+0.5)))+float2(LineMaskU,lerp(0.01,0,_MaskDistance))+(_LineTex_var.r*_LineMask));
float4 _MaskTex_var = tex2D(_MaskTex,TRANSFORM_TEX(MaskTexUV, _MaskTex));
float3 finalColor = lerp(lerp((_MainTex_var.rgb+_LineColor.rgb),_MainTex_var.rgb,_MaskTex_var.r),float3(1,1,1),0.0);
float4 _ShapeTex_var = tex2D(_ShapeTex,TRANSFORM_TEX(i.uv0, _ShapeTex));
return fixed4(finalColor,(i.vertexColor.a*(_MaskTex_var.r+_MaskTex_var.r)*_ShapeTex_var.r));
}
ENDCG
}
}
FallBack Off
}