1、环境光+漫反射+高光+点光源
Shader "Custom/Example_Frag_1" { properties { _MainColor("Main Color",color)=(1,1,1,1) _SpecularColor("Specular Color",color)=(1,1,1,1) //高光颜色 _Shininess("Shininess",range(1,32))=8 //高光范围 } Subshader { pass{ tags{"LightMode"="Forwardbase"} CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" #include "lighting.cginc" float4 _MainColor; float4 _SpecularColor; float _Shininess; struct v2f { float4 pos:POSITION; float3 normal:TEXCOORD1; fixed4 vertex:COLOR; }; v2f vert(appdata_base v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.normal=v.normal; o.vertex=v.vertex; return o; } float4 frag(v2f IN):COLOR { //Ambinet color 环境光 fixed4 col=UNITY_LIGHTMODEL_AMBIENT; //Diffuse Color 漫反射光 dot(N,L) float3 N=UnityObjectToWorldNormal(IN.normal); float3 L=normalize(WorldSpaceLightDir(IN.vertex)); float diffuseScale=saturate(dot(N,L)); col+=_LightColor0*_MainColor*diffuseScale; //Specular Color 高光 float3 V=normalize(WorldSpaceViewDir(IN.vertex)); float3 R=2*dot(N,L)*N-L;//反射光，方案一 // float3 I=-WorldSpaceLightDir(IN.vertex); // float3 R=reflect(I,N);//反射光，方案二 float specularScale=saturate(dot(R,V)); col+=_SpecularColor*pow(specularScale,_Shininess); //compute 4 points lighting 点光源 float3 wpos=mul(_Object2World,IN.vertex).xyz; col.rgb+=Shade4PointLights ( unity_4LightPosX0,unity_4LightPosY0,unity_4LightPosZ0, unity_LightColor[0].rgb,unity_LightColor[1].rgb,unity_LightColor[2].rgb,unity_LightColor[3].rgb, unity_4LightAtten0, wpos,N ); return col;//漫反射+环境光 } ENDCG } } }
2、阴影
Shader "Custom/Example_Frag_2" { properties { _MainColor("Main Color",color)=(1,1,1,1) _SpecularColor("Specular Color",color)=(1,1,1,1) //高光颜色 _Shininess("Shininess",range(1,32))=8 //高光范围 } Subshader { // pass // { // tags{"LightMode"="shadowcaster"}//这种方式只能为方向光添加投射阴影 // } pass{ tags{"LightMode"="Forwardbase"} CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" #include "lighting.cginc" float4 _MainColor; float4 _SpecularColor; float _Shininess; struct v2f { float4 pos:POSITION; float3 normal:TEXCOORD1; fixed4 vertex:COLOR; }; v2f vert(appdata_base v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.normal=v.normal; o.vertex=v.vertex; return o; } float4 frag(v2f IN):COLOR { //Ambinet color 环境光 fixed4 col=UNITY_LIGHTMODEL_AMBIENT; //Diffuse Color 漫反射光 dot(N,L) float3 N=UnityObjectToWorldNormal(IN.normal); float3 L=normalize(WorldSpaceLightDir(IN.vertex)); float diffuseScale=saturate(dot(N,L)); col+=_LightColor0*_MainColor*diffuseScale; //Specular Color 高光 float3 V=normalize(WorldSpaceViewDir(IN.vertex)); float3 R=2*dot(N,L)*N-L;//反射光，方案一 // float3 I=-WorldSpaceLightDir(IN.vertex); // float3 R=reflect(I,N);//反射光，方案二 float specularScale=saturate(dot(R,V)); col+=_SpecularColor*pow(specularScale,_Shininess); //compute 4 points lighting 点光源 float3 wpos=mul(unity_ObjectToWorld,IN.vertex).xyz; col.rgb+=Shade4PointLights ( unity_4LightPosX0,unity_4LightPosY0,unity_4LightPosZ0, unity_LightColor[0].rgb,unity_LightColor[1].rgb,unity_LightColor[2].rgb,unity_LightColor[3].rgb, unity_4LightAtten0, wpos,N ); return col;//漫反射+环境光 } ENDCG } } //取巧的方法是，让其回滚到系统自带的Diffuse中， //这样既可以产生方向光阴影，点光源也可以产生阴影 fallback "Diffuse" }
3、镂空效果
Subshader { Tags{"Queue"="Transparent"} pass{ blend srcAlpha oneMinussrcalpha
zwrite off CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" float _Scale; struct v2f { float4 pos:POSITION; float3 normal:TEXCOORD0; fixed4 vertex:TEXCOORD1; }; v2f vert(appdata_base v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.normal=v.normal; o.vertex=v.vertex; return o; } float4 frag(v2f IN):COLOR { float3 N=UnityObjectToWorldNormal(IN.normal); float3 V=UnityWorldSpaceViewDir(IN.vertex); float bright=1.0-saturate(dot(N,V)); bright=pow(bright,_Scale); return fixed4(1,1,1,1)*bright; } ENDCG } } }
4、描边
Shader "Custom/Example_Frag_4" { properties { _MainColor("MainColor",color)=(1,1,1,1) _Scale("Scale",range(1,8))=2 _Outer("Outer",range(0,1))=0.2 } Subshader { Tags{"Queue"="Transparent"} pass{ blend srcAlpha oneMinussrcalpha zwrite off CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" float4 _MainColor; float _Scale; float _Outer; struct v2f { float4 pos:POSITION; float3 normal:TEXCOORD0; fixed4 vertex:TEXCOORD1; }; v2f vert(appdata_base v) { v.vertex.xyz+=v.normal*_Outer; v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.normal=v.normal; o.vertex=v.vertex; return o; } float4 frag(v2f IN):COLOR { float3 N=UnityObjectToWorldNormal(IN.normal); float3 V=UnityWorldSpaceViewDir(IN.vertex); float bright=saturate(dot(N,V)); bright=pow(bright,_Scale); _MainColor.a*=bright; return _MainColor; } ENDCG } pass{ blendop revsub blend dstalpha one zwrite off CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" struct v2f { float4 pos:POSITION; }; v2f vert(appdata_base v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); return o; } float4 frag(v2f IN):COLOR { return fixed4(1,1,1,1); } ENDCG } pass{ blend srcAlpha oneMinussrcalpha zwrite off CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" float _Scale; struct v2f { float4 pos:POSITION; float3 normal:TEXCOORD0; fixed4 vertex:TEXCOORD1; }; v2f vert(appdata_base v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.normal=v.normal; o.vertex=v.vertex; return o; } float4 frag(v2f IN):COLOR { float3 N=UnityObjectToWorldNormal(IN.normal); float3 V=UnityWorldSpaceViewDir(IN.vertex); float bright=saturate(dot(N,V)); bright=pow(bright,_Scale); return fixed4(1,1,1,1)*bright; } ENDCG } } }
5、贴图及光照贴图
Shader "Custom/Example_Frag_6" { Properties { _MainTex ("Albedo (RGB)", 2D) = "white" {} } SubShader { pass{ CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" sampler2D _MainTex; float4 _MainTex_ST; struct v2f{ float4 pos:POSITION; float2 uv:TEXCOORD0; float2 uv_lighting:TEXCOORD1; }; v2f vert(appdata_full v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.uv=TRANSFORM_TEX(v.texcoord,_MainTex);//让属性面板中的Tiling和Offset起作用，这里需要声明 _ST 后缀的变量，这里是_MainTex_ST o.uv_lighting=v.texcoord1.xy*unity_LightmapST.xy+unity_LightmapST.zw;//使用光照贴图 return o; } fixed4 frag(v2f IN):COLOR { float3 lm=DecodeLightmap(UNITY_SAMPLE_TEX2D(unity_Lightmap,IN.uv_lighting));//解码光照贴图 fixed4 color=tex2D(_MainTex,IN.uv); color.rgb*=lm; return color; } ENDCG } } }
6、波
Shader "Custom/Example_Frag_7" { Properties { _MainTex ("Albedo (RGB)", 2D) = "white" {} _F("F",range(1,30))=10 _A("A",range(0,0.1))=0.01 _R("R",range(0,1))=0 } SubShader { pass{ CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" sampler2D _MainTex; float4 _MainTex_ST; float _F; float _A; float _R; struct v2f{ float4 pos:POSITION; float2 uv:TEXCOORD0; }; v2f vert(appdata_full v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.uv=TRANSFORM_TEX(v.texcoord,_MainTex); return o; } fixed4 frag(v2f IN):COLOR { // IN.uv+=0.01*sin(IN.uv*3.14*_F+_Time.y);//水波 float2 uv=IN.uv; float dis=distance(uv,float2(0.5,0.5)); float scale=0; _A*=saturate(1-dis/_R); scale=_A*sin(-dis*3.14*_F+_Time.y);//圆形涟漪 uv=uv+uv*scale; fixed4 color=tex2D(_MainTex,uv); return color; } ENDCG } } }
7、模糊
Shader "Custom/Example_Frag_8" { Properties { _MainTex ("Albedo (RGB)", 2D) = "white" {} _F("F",range(1,30))=10 _A("A",range(0,0.1))=0.01 _R("R",range(0,1))=0 } SubShader { pass{ CGPROGRAM #pragma vertex vert #pragma fragment frag #include "unitycg.cginc" #pragma target 3.0 sampler2D _MainTex; float4 _MainTex_ST; float _F; float _A; float _R; struct v2f{ float4 pos:POSITION; float2 uv:TEXCOORD0; float z:TEXCOORD1; }; v2f vert(appdata_full v) { v2f o; o.pos=UnityObjectToClipPos(v.vertex); o.uv=TRANSFORM_TEX(v.texcoord,_MainTex); o.z=mul(unity_ObjectToWorld,v.vertex).z; return o; } fixed4 frag(v2f IN):COLOR { float2 dsdx=ddx(IN.z)*10; float2 dsdy=ddy(IN.z)*10; fixed4 color=tex2D(_MainTex,IN.uv,dsdx,dsdy);//越正对的面越清晰，背对着的面模糊 return color; } ENDCG } } }