Shader(7)_溶解

效果图：

原理：
现在状态不佳，等状态好再详细写

代码：

Shader "Hidden/NewImageEffectShader"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
		_Noise ("Noise", 2D) = "white"{}
		_Crl ("Crl",Range(0,1)) = 0.5
    }
    SubShader
    {
        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float2 uv : TEXCOORD0;
				float2 uv1 : TEXCOORD1;
                float4 vertex : SV_POSITION;
            };

            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.uv = v.uv;
				o.uv1 = v.uv;
                return o;
            }

            sampler2D _MainTex;
			sampler2D _Noise;
			float _Crl;

            fixed4 frag (v2f i) : SV_Target
            {
                fixed4 col = tex2D(_MainTex, i.uv);
                fixed noise = tex2D(_Noise,i.uv1).b;

				clip(noise - _Crl);

				if(noise-_Crl<0.1)
				{
					return lerp(fixed4(1,0,0,1), fixed4(0,0,0,1),(noise - _Crl)*10);
				}

                return col;
            }
            ENDCG
        }
    }
}

来源：CSDN

作者：unity热爱者

链接：https://blog.csdn.net/weixin_43933605/article/details/103821478