皮肤2.jpg
皮肤1.jpg
皮肤材质.jpg
brdf.jpg
Map-Deep.png
Map-Mid.png
Shader "SkinTest03" {
Properties {
_Color ("Color Tint", Color) = (1, 1, 1, 1)
_MainTex ("Main Tex", 2D) = "white" {}
_BlurTex ("Blur Tex", 2D) = "white" {}
_BumpMap ("Normal Map", 2D) = "bump" {}
_BumpMapblur ("Normal Map", 2D) = "bump" {}
_BumpMapMask ("BumpMapMask", 2D) = "white" {}
_Specular ("Specular Color", Color) = (1, 1, 1, 1)
_SpecularTex ("SpecularTex", 2D) = "white" {}
_Gloss ("Gloss", Range(0.1, 1)) = 1
_Curvature ("Curvature", Range(0.0, 1)) = 0.5
_LookUp ("LookUp", 2D) = "white" {}
_scattering ("Scattering" , vector ) = (0,0,0,0)
_Translucency_var ("Translucency_var", 2D) = "white" {}
_SubColor ("SubColor", Color) = (1, 1, 1, 1)
_Fresnel ("Fresnel", Range(0.1, 1)) = 0.5
_RimPower("RimPower", Range(0.1, 0.8)) = 0.5
_RimColor("Rim Color", Color) = (1, 1, 1, 1)
_RimTex("Rim (RGB)", 2D) = "white" {}
_FrontRimPower("Front RimPower", Range(0.1, 0.8)) = 0.5
_FrontRimColor("Front Rim Color", Color) = (1, 1, 1, 1)
_FrontRimTex("Front Rim (RGB)", 2D) = "white" {}
}
SubShader {
Tags { "RenderType"="Opaque" "Queue"="Geometry"}
Pass {
Tags { "LightMode"="ForwardBase" }
CGPROGRAM
#pragma multi_compile_fwdbase
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
fixed4 _Color;
fixed4 _SubColor;
sampler2D _MainTex;
sampler2D _BlurTex;
float4 _MainTex_ST;
sampler2D _BumpMapMask;
sampler2D _BumpMap;
sampler2D _BumpMapblur;
float4 _BumpMap_ST;
fixed4 _Specular;
float _Gloss;
sampler2D _LookUp;
float _Curvature;
float4 _scattering;
sampler2D _Translucency_var;
float _Fresnel;
float _RimPower;
float4 _RimColor;
uniform sampler2D _RimTex;
float _FrontRimPower;
float4 _FrontRimColor;
uniform sampler2D _FrontRimTex;
uniform sampler2D _SpecularTex;
struct a2v {
float4 vertex : POSITION;
float3 normal : NORMAL;
float4 tangent : TANGENT;
float4 texcoord : TEXCOORD0;
};
struct v2f {
float4 pos : SV_POSITION;
float4 uv : TEXCOORD0;
float4 TtoW0 : TEXCOORD1;
float4 TtoW1 : TEXCOORD2;
float4 TtoW2 : TEXCOORD3;
SHADOW_COORDS(4)
};
v2f vert(a2v v) {
v2f o;
o.pos = UnityObjectToClipPos(v.vertex);
o.uv.xy = v.texcoord.xy * _MainTex_ST.xy + _MainTex_ST.zw;
o.uv.zw = v.texcoord.xy * _BumpMap_ST.xy + _BumpMap_ST.zw;
TANGENT_SPACE_ROTATION;
float3 worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
fixed3 worldNormal = UnityObjectToWorldNormal(v.normal);
fixed3 worldTangent = UnityObjectToWorldDir(v.tangent.xyz);
fixed3 worldBinormal = cross(worldNormal, worldTangent) * v.tangent.w;
o.TtoW0 = float4(worldTangent.x, worldBinormal.x, worldNormal.x, worldPos.x);
o.TtoW1 = float4(worldTangent.y, worldBinormal.y, worldNormal.y, worldPos.y);
o.TtoW2 = float4(worldTangent.z, worldBinormal.z, worldNormal.z, worldPos.z);
TRANSFER_SHADOW(o);
return o;
}
fixed4 frag(v2f i) : SV_Target {
float3 worldPos = float3(i.TtoW0.w, i.TtoW1.w, i.TtoW2.w);
fixed3 lightDir = normalize(UnityWorldSpaceLightDir(worldPos));
fixed3 viewDir = normalize(UnityWorldSpaceViewDir(worldPos));
fixed3 bump = UnpackNormal(tex2D(_BumpMap, i.uv.zw));
bump = normalize(half3(dot(i.TtoW0.xyz, bump), dot(i.TtoW1.xyz, bump), dot(i.TtoW2.xyz, bump)));
fixed3 bump1 = UnpackNormal(tex2D(_BumpMapblur, i.uv.zw));
bump1 = normalize(half3(dot(i.TtoW0.xyz, bump1), dot(i.TtoW1.xyz, bump1), dot(i.TtoW2.xyz, bump1)));
fixed3 bump2 = tex2D(_BumpMapMask, i.uv.xy);
float3 rs = bump;
float3 rn = lerp(bump,bump1,bump2.r);
float3 gn = lerp(bump,bump1,bump2.g);
float3 bn = lerp(bump,bump1,bump2.b);
float3 nlingh = float3(dot(rn, lightDir),dot(gn, lightDir),dot(bn, lightDir));
fixed3 albedo = tex2D(_MainTex, i.uv.xy).rgb * _Color.rgb;
/*Blur*/
albedo += tex2D(_BlurTex, i.uv.xy) * 64;
albedo += tex2D(_BlurTex, i.uv.xy) * 32;
albedo += tex2D(_BlurTex, i.uv.xy) * 16;
albedo += tex2D(_BlurTex, i.uv.xy) * 8;
albedo += tex2D(_BlurTex, i.uv.xy) * 4;
albedo += tex2D(_BlurTex, i.uv.xy) * 2;
albedo /= 256;
albedo*= _Color.rgb;
fixed3 ambient = UNITY_LIGHTMODEL_AMBIENT.xyz * albedo;
fixed3 diffuse = _LightColor0.rgb * albedo * max(0, nlingh/*dot(bump, lightDir)*/);
fixed3 halfDir = normalize(lightDir + viewDir);
fixed3 specular = _LightColor0.rgb * _Specular.rgb * pow(max(0, dot(bump, halfDir)), _Gloss);
/*Specular*/
float3 SpecularTex = tex2D(_SpecularTex,i.uv.xy);
half nl = saturate(dot(bump, lightDir));
half3 halfDir1 = normalize( lightDir + viewDir);
half nh = BlinnTerm(bump, halfDir1);
half nv = saturate(dot(bump, viewDir));
half2 rlPow4AndFresnelTerm = Pow4 (half2(nh, 1-nv));
half rlPow4 = rlPow4AndFresnelTerm.x;
half fresnelTerm = rlPow4AndFresnelTerm.y;
half grazingTerm = saturate(_Gloss );
half LUT_RANGE = 16.0;
half specular1 = tex2D(unity_NHxRoughness, half2(rlPow4, _Gloss)).UNITY_ATTEN_CHANNEL * LUT_RANGE;
half3 finalspecular = specular1 * _Specular * SpecularTex ; // + o.diffColor*nl
finalspecular*= _LightColor0.rgb ;
half3 c = diffuse ;
c *= lerp (_Specular, 1, fresnelTerm * _Fresnel);
finalspecular += c;
/**/
float NdotLBlurredUnclamped = max(-0.5,dot(bump, lightDir));
half3 diffuseLookUp = tex2Dlod(_LookUp, float4((NdotLBlurredUnclamped * 0.4 + 0.5), _Curvature, 0, 0));
float attenuation = LIGHT_ATTENUATION(i);
float3 attenColor = attenuation * _LightColor0.xyz;
fixed3 Translucency_var = tex2D(_Translucency_var, i.uv.xy).rgb ;
half3 transLightDir = lightDir + bump * _scattering.y;
half transDot = dot(-transLightDir, viewDir);
transDot = exp2((saturate(transDot)-1) * _scattering.x) * Translucency_var.g * _scattering.z;
half3 lightScattering = transDot * _SubColor /** attenColor*/;
/*rim*/
float3 rim = (1 - dot(viewDir, bump))*_RimPower * _RimColor *tex2D(_RimTex, i.uv.xy);
float3 frontrim = (dot(viewDir, bump))*_FrontRimPower * _FrontRimColor *tex2D(_FrontRimTex, i.uv.xy);
UNITY_LIGHT_ATTENUATION(atten, i, worldPos);
return fixed4(ambient + diffuse /* + specular*/ + finalspecular + diffuseLookUp * albedo + lightScattering + rim + frontrim, 1.0);
//return fixed4 (specular1 * _Specular.rgb+diffuse + diffuseLookUp * albedo + lightScattering,1.0);
}
ENDCG
}