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JJBB/Assets/Project/Shader/MobileDiffuseSpecular.shader
2024-08-23 15:49:34 +08:00

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Shader "Zhanyou/Mobile/DiffuseSpecular" {
Properties {
_MainTex ("Base (RGB)", 2D) = "white" {}
[NoScaleOffset]_BumpMap ("Normal Map", 2D) = "white" {}
_BumpLerp ("Normal Strength", Range(0, 5)) = 1
_Emission ("Emission", Range(0, 1)) = 0
_Specular ("Specular", Range(0, 2)) = 0.25
_Gloss ("Gloss", Range(0, 2)) = 1
}
SubShader {
Tags { "RenderType"="Opaque" }
// Forward Base
Pass
{
Name "FORWARD"
Tags { "LightMode" = "ForwardBase" }
CGPROGRAM
#define UNITY_PASS_FORWARDBASE
#include "UnityGiBase.cginc"
#pragma multi_compile_fwdbase
#pragma multi_compile_fog
#pragma multi_compile __ PLAYER_HALO_ON
#pragma multi_compile __ T4M_NORMAL_OFF
#pragma multi_compile __ T4M_UNITY_GI_OFF
#pragma vertex vert_Base
#pragma fragment frag
uniform sampler2D _MainTex;
uniform float4 _MainTex_ST;
uniform half _Emission;
#if !T4M_NORMAL_OFF
uniform sampler2D _BumpMap;
uniform half _BumpLerp;
#endif
#if !T4M_UNITY_GI_OFF
uniform half _Specular;
uniform half _Gloss;
#endif
fixed4 frag(v2f_Base i) : SV_TARGET
{
float2 uv = TRANSFORM_TEX(i.uv, _MainTex);
fixed4 c = tex2D(_MainTex, uv);
#if T4M_NORMAL_OFF
fixed3 worldNormal = fixed3(i.tSpace0.z, i.tSpace1.z, i.tSpace2.z);
#else
half3 normal = UnpackNormal(tex2D(_BumpMap, uv));
// 世界法线
fixed3 worldNormal;
worldNormal.x = dot(i.tSpace0.xyz, normal);
worldNormal.y = dot(i.tSpace1.xyz, normal);
worldNormal.z = dot(i.tSpace2.xyz, normal);
worldNormal = normalize(worldNormal);
#endif
// 标准UnityGi流程
GET_UNITY_GI_COLOR;
#if !T4M_NORMAL_OFF
// 法线强度调整功能
fixed ndotlVert = LambertTerm(fixed3(i.tSpace0.z, i.tSpace1.z, i.tSpace2.z), lightDir);
giColor += (ndotl - ndotlVert) * _BumpLerp * SIM_LIGHT_COLOR;
#endif
#if !T4M_UNITY_GI_OFF
// 虚拟光源高光反射
fixed3 worldViewDir = normalize(UnityWorldSpaceViewDir(worldPos));
half3 h = normalize (_SpecularLight.xyz + worldViewDir);
half nh = max (0, dot (worldNormal, h));
half specular = pow (nh, _Specular * 128.0) * _Gloss * c.a;
giColor += specular * atten;
#endif
#if PLAYER_HALO_ON
giColor += _DirectionalLightColor * LightColorFromWorld(worldPos);
#endif
// 自发光功能
c.rgb = giColor + c.rgb * _Emission;
UNITY_APPLY_FOG(i.fogCoord, c);
UNITY_OPAQUE_ALPHA(c.a);
return c;
}
ENDCG
}
}
Fallback "Zhanyou/Mobile/DiffuseBumpedEmit"
}