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91 lines
2.0 KiB
91 lines
2.0 KiB
Shader "SuYou/CustomTerrain"
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{
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Properties
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{
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_Splat0 ("Layer 1", 2D) = "white" {}
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_Splat1 ("Layer 2", 2D) = "white" {}
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_Splat2 ("Layer 3", 2D) = "white" {}
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_Splat3 ("Layer 4", 2D) = "white" {}
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_Control ("Control (RGBA)", 2D) = "white" {}
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}
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CGINCLUDE
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sampler2D _Splat0, _Splat1, _Splat2, _Splat3, _Control;
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ENDCG
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SubShader {
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Tags { "SplatCount" = "4" "RenderType" = "Opaque" }
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Pass {
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#pragma multi_compile_fog
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#pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
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#include "UnityCG.cginc"
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struct appdata_t
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{
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float4 vertex : POSITION;
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float2 texcoord : TEXCOORD0;
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float2 texcoord1 : TEXCOORD1;
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};
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struct v2f
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{
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half4 pos : SV_POSITION;
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half2 uv_Control : TEXCOORD0;
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half4 uv_Splat0 : TEXCOORD1;
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half4 uv_Splat1 : TEXCOORD2;
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#ifdef LIGHTMAP_ON
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half2 lmuv : TEXCOORD3;
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#endif
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UNITY_FOG_COORDS(4)
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};
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half4 _Splat0_ST, _Splat1_ST, _Splat2_ST, _Splat3_ST;
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v2f vert (appdata_t v)
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{
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v2f o;
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o.pos = UnityObjectToClipPos (v.vertex);
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o.uv_Control = v.texcoord;
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o.uv_Splat0.xy = TRANSFORM_TEX(v.texcoord, _Splat0);
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o.uv_Splat0.zw = TRANSFORM_TEX(v.texcoord, _Splat1);
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o.uv_Splat1.xy = TRANSFORM_TEX(v.texcoord, _Splat2);
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o.uv_Splat1.zw = TRANSFORM_TEX(v.texcoord, _Splat3);
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#ifdef LIGHTMAP_ON
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o.lmuv = v.texcoord1 * unity_LightmapST.xy + unity_LightmapST.zw;
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#endif
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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 (v2f i) : COLOR0
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{
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fixed4 splat_control = tex2D (_Control, i.uv_Control).rgba;
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fixed3 lay1 = tex2D (_Splat0, i.uv_Splat0.xy);
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fixed3 lay2 = tex2D (_Splat1, i.uv_Splat0.zw);
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fixed3 lay3 = tex2D (_Splat2, i.uv_Splat1.xy);
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fixed3 lay4 = tex2D (_Splat3, i.uv_Splat1.zw);
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fixed4 resultColor;
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resultColor.rgb = (lay1 * splat_control.r + lay2 * splat_control.g + lay3 * splat_control.b + lay4 * splat_control.a);
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#ifdef LIGHTMAP_ON
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fixed3 lm = DecodeLightmap(UNITY_SAMPLE_TEX2D(unity_Lightmap,i.lmuv));
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resultColor.rgb *= lm;
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#endif
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UNITY_APPLY_FOG(i.fogCoord, resultColor);
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return resultColor;
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}
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ENDCG
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}
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}
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Fallback Off
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}
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