|
Shader "UTK/StandardSample"
{
Properties {
_TintColor("TintColor", Color) = (1,1,1,1)
_MainTex("Albedo(RGB)", 2D) = "white" {}
[Normal][NoScaleOffset]_BumpMap("Normal Texture", 2D) = "Bump" {}
_NormalInten("Noraml Intensity", Range(0,2)) = 0
_Metallic("Metallic", Range(0,1)) = 0
_Smoothness("Smoothness", Range(0,1)) = 0.5
_Occlusion("Occlusion", 2D) = "white" {}
_OcInten("Occlusion Intensity", Range(0,1)) = 1
[Space(15)][Enum(UnityEngine.Rendering.CullMode)]_CullMode("CullMode", Float) = 0
[KeywordEnum(BRDF1, BRDF2, BRDF3)] _BRDF("Unity BRDF select", Float) = 0
}
SubShader
{
Tags{"IgnoreProjector" = "True" "Render Type" = "Opaque" "Queue" = "Geometry"}
Blend off
Cull[_CullMode]
CGPROGRAM
#pragma surface surf StandardCustom fullforwardshadows
#pragma target 3.0
#pragma shader_feature _BRDF_BRDF1 _BRDF_BRDF2 _BRDF_BRDF3
#include "UnityPBSLighting.cginc"
#include "AutoLight.cginc"
sampler2D _MainTex;
sampler2D _BumpMap;
sampler2D _Occlusion;
half _NormalInten;
half _Metallic, _Smoothness, _OcInten;
fixed4 _TintColor;
struct Input
{
float2 uv_MainTex;
};
void surf(Input IN, inout SurfaceOutputStandard o)
{
fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
o.Albedo = c.rgb * _TintColor;
o.Normal = UnpackScaleNormal(tex2D(_BumpMap, IN.uv_MainTex), _NormalInten);
o.Metallic = _Metallic;
o.Smoothness = _Metallic;
o.Occlusion = tex2D(_Occlusion, IN.uv_MainTex).r * _OcInten;
o.Alpha = 1;
}
inline half4 LightingStandardCustom(SurfaceOutputStandard s, half3 viewDir, UnityGI gi)
{
s.Normal = normalize(s.Normal);
half oneMinusReflectivity;
half3 specColor;
s.Albedo = DiffuseAndSpecularFromMetallic (s.Albedo, s.Metallic, /*out*/ specColor, /*out*/ oneMinusReflectivity);
// shader relies on pre-multiply alpha-blend (_SrcBlend = One, _DstBlend = OneMinusSrcAlpha)
// this is necessary to handle transparency in physically correct way - only diffuse component gets affected by alpha
half outputAlpha;
s.Albedo = PreMultiplyAlpha (s.Albedo, s.Alpha, oneMinusReflectivity, /*out*/ outputAlpha);
// half3 lightData = half3(0, 0, 0);
#if _BRDF_BRDF1
half4 c = BRDF1_Unity_PBS(s.Albedo, specColor, oneMinusReflectivity, s.Smoothness, s.Normal, viewDir, gi.light, gi.indirect);
#elif _BRDF_BRDF2
half4 c = BRDF2_Unity_PBS(s.Albedo, specColor, oneMinusReflectivity, s.Smoothness, s.Normal, viewDir, gi.light, gi.indirect);
#elif _BRDF_BRDF3
half4 c = BRDF3_Unity_PBS(s.Albedo, specColor, oneMinusReflectivity, s.Smoothness, s.Normal, viewDir, gi.light, gi.indirect);
#endif
// half3 lighting = saturate(lightData);
// c.rgb = c.rgb + gi.light.color * lighting;
c.a = outputAlpha;
return c;
}
inline void LightingStandardCustom_GI(SurfaceOutputStandard s, UnityGIInput data, inout UnityGI gi)
{
gi = UnityGlobalIllumination(data, s.Occlusion, s.Normal);
}
ENDCG
}
Fallback "Standard"
}
|
