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

// Shader created with Shader Forge v1.27 
// Shader Forge (c) Neat Corporation / Joachim Holmer - http://www.acegikmo.com/shaderforge/
// Optimized by Blastom
Shader "Zhanyou/Particles/Niuqu" {
    Properties {
        _dif ("dif", 2D) = "white" {}
        _niuqu_qiangdu ("niuqu_qiangdu", Range(0, 3)) = 0
        _wenli ("wenli", 2D) = "white" {}
        _wenli_qiangdu ("wenli_qiangdu", Range(0, 3)) = 0
        _alpha ("alpha", 2D) = "white" {}
		_uvSpeed ("UvSpeed (xy for node_4447, zw for node_6494)", Vector) = (0.2, 0.2, 0, 0)
    }
    SubShader {
        Tags {
            "IgnoreProjector"="True"
            "Queue"="AlphaTest+60"
			// 防止Shader Replace渲染这个东西
	        "RenderType"="NoReplace"
        }
		GrabPass{"_DistortionTex"}
		Lighting Off
		LOD 600
        Pass {
            Name "FORWARD"
            Tags {
                "LightMode"="ForwardBase"
            }
            //Blend SrcAlpha OneMinusSrcAlpha
            Cull Off
            ZWrite Off
            
            CGPROGRAM
			#include "UnityCG.cginc"
            #pragma vertex vert
            #pragma fragment frag
			#pragma target 3.0
            uniform sampler2D _DistortionTex;
            //uniform sampler2D _GrabTexture;
			uniform float4 _TimeEditor;
            uniform sampler2D _dif;
			uniform float4 _dif_ST;
            uniform float _niuqu_qiangdu;
            uniform sampler2D _wenli;
			uniform float4 _wenli_ST;
            uniform float _wenli_qiangdu;
            uniform sampler2D _alpha;
			uniform float4 _alpha_ST;
			uniform half4 _uvSpeed;
            struct VertexInput {
                float4 vertex : POSITION;
                float2 texcoord0 : TEXCOORD0;
                float4 vertexColor : COLOR;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float2 uv0 : TEXCOORD0;
                float4 screenPos : TEXCOORD1;
                float4 vertexColor : COLOR;
            };
            VertexOutput vert (VertexInput v) {
				VertexOutput o;
				UNITY_INITIALIZE_OUTPUT(VertexOutput, o);
                o.uv0 = v.texcoord0;
                o.vertexColor = v.vertexColor;
                o.pos = UnityObjectToClipPos(v.vertex);
                o.screenPos = o.pos;
                return o;
            }
            float4 frag(VertexOutput i) : SV_TARGET {
                #if UNITY_UV_STARTS_AT_TOP
                    float grabSign = -_ProjectionParams.x;
                #else
                    float grabSign = _ProjectionParams.x;
                #endif
                i.screenPos = float4( i.screenPos.xy / i.screenPos.w, 0, 0 );
                i.screenPos.y *= _ProjectionParams.x;
				float4 node_3916 = _Time + _TimeEditor;
                float2 node_4447 = i.uv0 + node_3916.g * _uvSpeed.xy;
                float4 _wenli_var = tex2D(_wenli, TRANSFORM_TEX(node_4447, _wenli));
                float2 node_6494 = _wenli_var.b * _wenli_qiangdu + i.uv0 + node_3916.g * _uvSpeed.zw;
                float4 _dif_var = tex2D(_dif, TRANSFORM_TEX(node_6494, _dif));
                float4 _alpha_var = tex2D(_alpha, TRANSFORM_TEX(i.uv0, _alpha));
                float2 sceneUVs = float2(1, grabSign) * i.screenPos.xy * 0.5 + 0.5 + float2(_dif_var.r, _dif_var.g) * _dif_var.a * _niuqu_qiangdu * i.vertexColor.a * _alpha_var.a;
                //float4 sceneColor = tex2D(_GrabTexture, sceneUVs);
				float4 sceneColor = tex2D(_DistortionTex, sceneUVs);
				fixed4 c = fixed4(sceneColor.rgb, 1);
                return c;
            }
            ENDCG
        }
    }
	// SM3.0以下或者其他不兼容机子回滚到不渲染Shader
	SubShader
	{
		Tags {
	        "IgnoreProjector"="True"
            "Queue"="AlphaTest+60"
			// 防止Shader Replace渲染这个东西
	        "RenderType"="NoReplace"
		}
		Pass {
			ColorMask 0
			ZWrite Off
		}
	}
}