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| Shader "HHF/Tutorial/Translucent"
{
Properties
{
_BaseColor("Base Color",color) = (1,1,1,1)
_BaseMap("BaseMap", 2D) = "white" {}
_Specular("Specular",float) = 1
_Shininess("Shininess",float) = 1
[Header(Translucent)]
_ThicknessMap("ThicknessMap",2D) = "white"{}
_Thickness("Thickness",range(0,1)) = 0.5
_NormalDistortion("Normal Distortion",range(0,1)) = 0.5
_Attenuation("Attenuation",float) = 0
_Strength("Strength",float) = 1
}
SubShader
{
Tags { "Queue"="Geometry" "RenderType" = "Opaque" "IgnoreProjector" = "True" "RenderPipeline" = "UniversalPipeline" }
Pass
{
HLSLPROGRAM
#pragma prefer_hlslcc gles
#pragma exclude_renderers d3d11_9x
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile _ _ADDITIONAL_LIGHTS
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
struct appdata
{
float4 positionOS : POSITION;
float2 uv : TEXCOORD0;
float3 normalOS : NORMAL;
};
struct v2f
{
float4 positionCS : SV_POSITION;
float2 uv : TEXCOORD0;
float3 normalWS : TEXCOORD1;
float3 viewWS : TEXCOORD2;
float3 positionWS : TEXCOORD3;
};
CBUFFER_START(UnityPerMaterial)
half4 _BaseColor;
float4 _BaseMap_ST;
half _Specular,_Shininess;
half _NormalDistortion,_Attenuation,_Strength,_Thickness;
CBUFFER_END
TEXTURE2D (_BaseMap);SAMPLER(sampler_BaseMap);
TEXTURE2D (_ThicknessMap);SAMPLER(sampler_ThicknessMap);
half3 LightingTranslucent(float3 lightDir, float3 viewDir, half3 normalWS, half3 color, half thickness)
{
half3 L = lightDir;
half3 V = viewDir;
half3 N = normalWS;
half3 H = L + N * _NormalDistortion;
half _LdotV = dot(-H,V);
half3 I = pow(saturate(_LdotV), _Attenuation) * _Strength;
I *= thickness;
I *= color;
return I;
}
v2f vert(appdata v)
{
v2f o = (v2f)0;
o.positionCS = TransformObjectToHClip(v.positionOS.xyz);
o.uv = TRANSFORM_TEX(v.uv, _BaseMap);
o.normalWS = TransformObjectToWorldNormal(v.normalOS);
o.positionWS = TransformObjectToWorld(v.positionOS.xyz);
o.viewWS = normalize(_WorldSpaceCameraPos - o.positionWS);
return o;
}
half4 frag(v2f i) : SV_Target
{
half4 c = 0;
half4 baseMap = SAMPLE_TEXTURE2D(_BaseMap, sampler_BaseMap, i.uv);
c = baseMap * _BaseColor;
float3 N = normalize(i.normalWS);
Light mainLight = GetMainLight();
float3 L = mainLight.direction;
float3 V = i.viewWS;
float3 H = normalize(L + V);
half diffuse = max(0.3,dot(N,L));
c *= diffuse;
half NdotH = saturate(dot(N,H));
half specular = _Specular * pow(NdotH, _Shininess);
c += specular;
half thicknessMap = 1 - SAMPLE_TEXTURE2D(_ThicknessMap, sampler_ThicknessMap, i.uv).r;
half thickness = lerp(1,thicknessMap,_Thickness);
c.rgb += LightingTranslucent(L, i.viewWS,N, mainLight.color, thickness);
#ifdef _ADDITIONAL_LIGHTS
uint pixelLightCount = GetAdditionalLightsCount();
for (uint lightIndex = 0u; lightIndex < pixelLightCount; ++lightIndex)
{
Light light = GetAdditionalLight(lightIndex, i.positionWS);
half3 attenuatedLightColor = light.color * (light.distanceAttenuation * light.shadowAttenuation);
c.rgb += LightingTranslucent(light.direction,i.viewWS,N,light.color,thickness) * attenuatedLightColor;
}
#endif
return c;
}
ENDHLSL
}
}
SubShader
{
Pass
{
Tags { "Queue"="Geometry" "RenderType" = "Opaque" "IgnoreProjector" = "True" "LightMode" = "ForwardBase"}
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_fwdbase
#include "UnityCG.cginc"
#include "AutoLight.cginc"
#include "Lighting.cginc"
struct appdata
{
float4 positionOS : POSITION;
float2 uv : TEXCOORD0;
float3 normalOS : NORMAL;
};
struct v2f
{
float4 positionCS : SV_POSITION;
float2 uv : TEXCOORD0;
float3 normalWS : TEXCOORD1;
float3 viewWS : TEXCOORD2;
float3 positionWS : TEXCOORD3;
};
half4 _BaseColor;
sampler2D _BaseMap;float4 _BaseMap_ST;
half _Specular,_Shininess;
half _NormalDistortion,_Attenuation,_Strength,_Thickness;
sampler2D _ThicknessMap;float4 _ThicknessMap_ST;
half3 LightingTranslucent(float3 lightDir, float3 viewDir, half3 normalWS, half3 color, half thickness)
{
half3 L = lightDir;
half3 V = viewDir;
half3 N = normalWS;
half3 H = L + N * _NormalDistortion;
half _LdotV = dot(-H,V);
half3 I = pow(saturate(_LdotV),_Attenuation) * _Strength;
I *= thickness;
I *= color;
return I;
}
v2f vert(appdata v)
{
v2f o = (v2f)0;
o.positionCS = UnityObjectToClipPos(v.positionOS);
o.uv = TRANSFORM_TEX(v.uv, _BaseMap);
o.normalWS = UnityObjectToWorldNormal(v.normalOS);
o.positionWS = mul(unity_ObjectToWorld, v.positionOS);
o.viewWS = normalize(_WorldSpaceCameraPos - o.positionWS);
return o;
}
half4 frag(v2f i) : SV_Target
{
half4 c = 0;
half4 baseMap = tex2D(_BaseMap, i.uv);
c = baseMap * _BaseColor;
float3 N = normalize(i.normalWS);
float3 L = _WorldSpaceLightPos0;
float3 V = i.viewWS;
float3 H = normalize(L + V);
half diffuse = max(0.3,dot(N,L));
c *= diffuse;
half NdotH = saturate(dot(N,H));
half specular = _Specular * pow(NdotH, _Shininess);
c += specular;
half thicknessMap = 1 - tex2D(_ThicknessMap, i.uv).r;
half thickness = lerp(1,thicknessMap,_Thickness);
c.rgb += LightingTranslucent(L, i.viewWS,N, _LightColor0, thickness);
return c;
}
ENDCG
}
Pass
{
Tags { "Queue"="Geometry" "RenderType" = "Opaque" "IgnoreProjector" = "True" "LightMode" = "ForwardAdd"}
Blend One One
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_fwdadd
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
struct appdata
{
float4 vertex : POSITION;
float2 uv : TEXCOORD0;
half3 normal:NORMAL;
};
struct v2f
{
float2 uv : TEXCOORD0;
float4 positionCS : SV_POSITION;
half3 normalWS:TEXCOORD1;
float3 positionWS:TEXCOORD2;
float3 viewWS : TEXCOORD3;
};
half _NormalDistortion,_Attenuation,_Strength,_Thickness;
sampler2D _ThicknessMap;float4 _ThicknessMap_ST;
half3 LightingTranslucent(float3 lightDir, float3 viewDir, half3 normalWS, half3 color, half thickness)
{
half3 L = lightDir;
half3 V = viewDir;
half3 N = normalWS;
half3 H = L + N * _NormalDistortion;
half _LdotV = dot(-H,V);
half3 I = pow(saturate(_LdotV),_Attenuation) * _Strength;
I *= thickness;
I *= color;
return I;
}
v2f vert (appdata v)
{
v2f o;
o.positionCS = UnityObjectToClipPos(v.vertex);
o.uv = v.uv;
o.normalWS = UnityObjectToWorldNormal(v.normal);
o.positionWS = mul(unity_ObjectToWorld,v.vertex);
o.viewWS = normalize(_WorldSpaceCameraPos - o.positionWS);
return o;
}
fixed4 frag (v2f i) : SV_Target
{
half4 c = 0;
UNITY_LIGHT_ATTENUATION(atten, 0, i.positionWS)
half thicknessMap = 1 - tex2D(_ThicknessMap, i.uv).r;
half thickness = lerp(1, thicknessMap, _Thickness);
fixed3 N = normalize(i.normalWS);
c.rgb += LightingTranslucent(_WorldSpaceLightPos0, i.viewWS,N,_LightColor0 * atten, thickness) ;
return c;
}
ENDCG
}
}
}
|
