Unity Shader 高光反射光照模型-逐像素

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逐像素光照

Shader "Unlit/SpecularPixelLevel"
{Properties{_Diffuse("Diffuse",Color) = (1,1,1,1)_Specular("Specular", Color) = (1, 1, 1, 1)_Gloss("Gloss", Range(8.0, 256)) = 20}SubShader{Pass{Tags{"LightMode" = "ForwardBase"}CGPROGRAM#pragma vertex vert
#pragma fragment frag#include "Lighting.cginc"fixed4 _Diffuse;fixed4 _Specular;float _Gloss;struct a2v{float4 vertex:POSITION;float3 normal:NORMAL;};struct v2f{float4 pos:SV_POSITION;float3 worldNormal:TEXCOORD0;float3 worldPos:TEXCOORD1;};v2f vert(a2v v){v2f o;o.pos = UnityObjectToClipPos(v.vertex);o.worldNormal = mul(v.normal, (float3x3)unity_WorldToObject);o.worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;return o;}fixed4 frag(v2f i) :SV_Target{fixed3 ambient = UNITY_LIGHTMODEL_AMBIENT.xyz;fixed3 worldNormal = normalize(i.worldNormal);fixed3 worldLightDir = normalize(_WorldSpaceLightPos0.xyz);fixed3 diffuse = _LightColor0.rgb*_Diffuse.rgb*saturate(dot(worldNormal, worldLightDir));fixed3 reflectDir = normalize(reflect(-worldLightDir, worldNormal));fixed3 viewDir = normalize(_WorldSpaceCameraPos.zyx - i.worldPos.zyx);fixed3 specular = _LightColor0.rgb*_Specular.rgb*pow(saturate(dot(reflectDir, viewDir)), _Gloss);return fixed4(ambient + diffuse + specular,1.0);}ENDCG}}Fallback "Specular"
}

效果，中间那个

参考 我买的 unity shader 入门精要

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