Shader "Custom/ScrollTexture" {
Properties {
[PerRendererData] _MainTex("Sprite", 2D) = "white" {}
[PerRendererData] _Color("Sprite Tint", Color) = (1,1,1,1)
_ScrollColor("Scroll Tint", Color) = (1,1,1,1)
_ScrollTex("Scroll Texture", 2D) = "black" {}
_ScrollOpacity("Scroll Opacity", Range(0, 1)) = 1
_ScrollX("Scroll X", Range(-1, 1)) = 0
_ScrollY("Scroll Y", Range(-1, 1)) = 0
}
SubShader {
Pass {
Blend SrcAlpha OneMinusSrcAlpha
Cull Off
ZWrite Off
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
uniform sampler2D _MainTex; uniform float4 _MainTex_ST;
uniform sampler2D _ScrollTex; uniform float4 _ScrollTex_ST;
uniform half _ScrollOpacity;
uniform half4 _ScrollColor;
uniform half _ScrollX;
uniform half _ScrollY;
uniform half4 _Color;
struct VertexInput {
float4 vertex : POSITION;
float3 normal : NORMAL;
float2 texcoord0 : TEXCOORD0;
float4 vertexColor : COLOR;
};
struct VertexOutput {
float4 pos : SV_POSITION;
float2 uv0 : TEXCOORD0;
float4 posWorld : TEXCOORD1;
float3 normalDir : TEXCOORD2;
float4 vertexColor : COLOR;
};
half2 Scroll(float2 uv, half x, half y) {
return half2(uv.r + _Time.y * x, uv.g + _Time.y * y);
}
half3 Blend(half4 tt, half3 tc, half3 tint) {
tt.rgb *= tint;
return lerp(tt.rgb, tc, ((tt.a - 1) * -1));
}
VertexOutput vert(VertexInput v) {
VertexOutput o = (VertexOutput)0;
o.uv0 = v.texcoord0;
o.vertexColor = v.vertexColor * _Color;
o.normalDir = UnityObjectToWorldNormal(v.normal);
o.posWorld = mul(unity_ObjectToWorld, v.vertex);
o.pos = UnityObjectToClipPos(v.vertex);
return o;
}
float4 frag(VertexOutput i) : COLOR {
half _time = _Time.w;
half2 scrollUV = Scroll(i.uv0, _ScrollX, _ScrollY);
half4 mainTexture = tex2D(_MainTex, TRANSFORM_TEX(i.uv0, _MainTex));
half3 canvas = mainTexture.rgb * i.vertexColor.rgb;
half4 scrollTex = tex2D(_ScrollTex, TRANSFORM_TEX(scrollUV, _ScrollTex));
scrollTex.rgb = Blend(scrollTex, canvas, _ScrollColor.rgb);
canvas = lerp(canvas, scrollTex.rgb, _ScrollOpacity);
half3 finalColor = canvas;
return fixed4(finalColor, (mainTexture.a * i.vertexColor.a));
}
ENDCG
}
}
FallBack "Sprites/Diffuse"
}
Добавлено: 10 июн 2018, 00:26
