// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
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// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
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// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
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// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
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// Copyright Mechanist Games
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Shader "Environment/Flag"
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{
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Properties
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{
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_MainTex ("Color Texture", 2D) = "white" { }
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_WindSpd ("Wind Speed (25)", Float) = 25
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_WindAmt ("Wind Amount (1)", Float) = 1
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_WindStr ("Wind Distance (0.2)", Float) = 0.2
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_Side ("Sideways Offset", Range(0, 2)) = 1
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_RippSpd ("Ripple Speed", Float) = 100
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_RippAmt ("Ripple Amount (4.0)", Float) = 4
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_RippStr ("Ripple Distance (0.1)", Float) = 0.1
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_RippBrt ("Ripple Brightness", Range(0.2, 2)) = 1
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_ClothVector ("Cloth Vector", Vector) = (1, 1, 1, 1)
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_TransparencyLM ("Lightmap Transparency", 2D) = "black" { }
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}
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Subshader
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{
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LOD 100
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Tags
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{ "Queue" = "Geometry"
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// "RenderType" = "Opaque" "IgnoreProjector" = "True" "LightMode" = "Always"
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}
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Pass
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{
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Cull Back
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Lighting Off
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//Fog{ Mode Off }
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CGPROGRAM
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#pragma target 3.0
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#pragma vertex vert
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#pragma fragment frag
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#pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
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#pragma multi_compile QUALITY_LOW QUALITY_MED QUALITY_HGH
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma exclude_renderers flash
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#pragma multi_compile_fog
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#include "UnityCG.cginc"
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#include "SnxxzCG.cginc"
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struct VertInput
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{
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half4 vertex: POSITION;
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half3 normal: NORMAL;
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half4 color: COLOR;
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half2 texcoord0: TEXCOORD0;
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half2 texcoord1: TEXCOORD1;
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};
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struct vertShader
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{
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half4 pos: SV_POSITION;
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half2 uv1: TEXCOORD0;
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half2 uv2: TEXCOORD1;
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fixed shn: TEXCOORD2;
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UNITY_FOG_COORDS(n)
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};
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// resources
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uniform sampler2D _MainTex;
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// properties
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uniform float _WindSpd;
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uniform float _WindAmt;
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uniform float _WindStr;
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uniform float _RippSpd;
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uniform float _RippAmt;
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uniform float _RippStr;
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uniform float _RippBrt;
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uniform float _Side;
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uniform float3 _ClothVector;
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vertShader vert(VertInput v)
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{
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vertShader o;
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float3 worldVertex = mul(unity_ObjectToWorld, v.vertex).xyz;
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// wind
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float Coef = _WindSpd * _Time.x + worldVertex.y * _WindAmt + (worldVertex.x + worldVertex.z) * _Side;
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float2 clothWind = float2(sin(Coef), cos(Coef)) * v.color.a * _WindStr;
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// rippling
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Coef = _RippSpd * _Time.x + worldVertex.y * _RippAmt - (worldVertex.x + worldVertex.z) * _Side;
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float2 clothRipp = float2(sin(Coef), cos(Coef)) * v.color.a * _RippStr;
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// apply animations
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float2 clothMove = clothWind + clothRipp;
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float3 clothTotal = float3(clothMove.x, clothMove.x, clothMove.y) * _ClothVector;
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v.vertex.xyz += clothTotal;
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// ripple shine
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o.shn = _RippBrt * smoothstep(-0.2, 0.2, clothRipp.x + clothRipp.y);
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// pos and uv tex coord
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o.pos = UnityObjectToClipPos(v.vertex);
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o.uv1 = v.texcoord0;
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o.uv2 = inlineLightmapTransform(v.texcoord1);
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UNITY_TRANSFER_FOG(o, o.pos);
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return o;
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}
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fixed4 frag(vertShader i): SV_Target
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{
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fixed3 lightmap = inlineLightmapBasic(i.uv2);
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fixed4 baseTex = tex2D(_MainTex, i.uv1);
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fixed3 outcolor = baseTex.rgb;
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outcolor *= lightmap;
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outcolor *= 0.8 + i.shn * baseTex.a;
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UNITY_APPLY_FOG(i.fogCoord, outcolor);
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return float4(outcolor.rgb, 1);
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}
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ENDCG
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}
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}
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}
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