#pragma surface surf Standard fullforwardshadows vertex vert

#pragma surface surf Standard fullforwardshadows
#pragma vertex vert

#pragma vertex vert
#pragma fragment frag

struct Input {
  float2 uv_MainTex;
  float2 uv_BumpMap;
};

struct v2f {
    half3 worldRefl : TEXCOORD0;
    float4 pos : SV_POSITION;
};

void vert (inout appdata_full v) {
    v.vertex.xyz += v.normal * _Amount;
}

void myvert (inout appdata_full v, out Input data)
{
    UNITY_INITIALIZE_OUTPUT(Input,data);
    float4 hpos = UnityObjectToClipPos(v.vertex);
    hpos.xy/=hpos.w;
    data.fog = min (1, dot (hpos.xy, hpos.xy)*0.5);
}

v2f vert (appdata v)
{
    v2f o;
    o.vertex = UnityObjectToClipPos(v.vertex);
    o.uv = TRANSFORM_TEX(v.uv, _MainTex);
    UNITY_TRANSFER_FOG(o,o.vertex);
    return o;
}

v2f vert (float4 vertex : POSITION, float3 normal : NORMAL)
{
    v2f o;
    o.pos = UnityObjectToClipPos(vertex);
    o.worldPos = mul(_Object2World, vertex).xyz;
    o.worldNormal = UnityObjectToWorldNormal(normal);
    return o;
}

void surf (Input IN, inout SurfaceOutput o) {
    o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
}

void surf (Input IN, inout SurfaceOutput o) {
    clip (frac((IN.worldPos.y+IN.worldPos.z*0.1) * 5) - 0.5);
    o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
    o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
}

fixed4 frag (v2f i) : SV_Target
{
    fixed4 col = tex2D(_MainTex, i.uv);
    col *= i.diff;
    return col;
}

fixed4 frag (v2f i) : SV_Target
{
    fixed4 col = tex2D(_MainTex, i.uv);
    fixed shadow = SHADOW_ATTENUATION(i);
    fixed3 lighting = i.diff * shadow + i.ambient;
    col.rgb *= lighting;
    return col;
}

#pragma surface surf SimpleLambert

half4 LightingSimpleLambert (SurfaceOutput s, half3 lightDir, half atten) {
    half NdotL = dot (s.Normal, lightDir);
    half4 c;
    c.rgb = s.Albedo * _LightColor0.rgb * (NdotL * atten);
    c.a = s.Alpha;
    return c;
}