110 lines
2.5 KiB
Plaintext
110 lines
2.5 KiB
Plaintext
Shader "Custom/OutLine2" {
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Properties
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{
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_MainTex("Texture(RGB)",2D) = "grey"{} //主纹理
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_Color("Color",Color) = (0,0,0,1) //主纹理颜色
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_AtmoColor("Atmosphere Color",Color) = (0,0,0,0) //光晕颜色
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_Size("Size",Range(0,1)) = 0.1 //光晕范围
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_OutLightPow("Falloff",Range(1,10)) = 5 //光晕系数
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_OutLightStrength("Transparency",Range(5,20)) = 15 //光晕强度
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}
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SubShader{
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Pass{
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Name "PlaneBase"
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Tags{"LightMode" = "Always"}
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Cull Back //剔除背面
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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uniform sampler2D _MainTex;
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uniform float4 _MainTex_ST;
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uniform float4 _Color;
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uniform float4 _AtmoColor;
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uniform float _Size;
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uniform float _OutLightPow;
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uniform float _OutLightStrength;
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struct vertexOutput {
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float4 pos : SV_POSITION;
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float3 normal : TEXCOORD0;
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float3 worldvertpos : TEXCOORD1;
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float2 texcoord : TEXCOORD2;
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};
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//顶点着色器
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vertexOutput vert(appdata_base v)
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{
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vertexOutput o;
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//顶点位置
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o.pos = UnityObjectToClipPos(v.vertex);
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//法线
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o.normal = v.normal;
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//世界坐标顶点位置
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o.worldvertpos = mul(unity_ObjectToWorld, v.vertex).xyz;
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o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
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return o;
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}
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float4 frag(vertexOutput i) : COLOR
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{
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float4 color = tex2D(_MainTex,i.texcoord);
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return color * _Color;
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}
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ENDCG
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}
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Pass{
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Name "AtmosphereBase"
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Tags{"LightMode" = "Always"}
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Cull Front
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Blend SrcAlpha One
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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uniform float4 _Color;
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uniform float4 _AtmoColor;
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uniform float _Size;
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uniform float _OutLightPow;
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uniform float _OutLightStrength;
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struct vertexOutput
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{
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float4 pos : SV_POSITION;
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float3 normal : TEXCOORD0;
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float3 worldvertpos : TEXCOORD1;
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};
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vertexOutput vert(appdata_base v) {
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vertexOutput o;
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//顶点位置以法线方向向外延伸
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v.vertex.xyz += v.normal * _Size;
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o.pos = UnityObjectToClipPos(v.vertex);
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o.normal = v.normal;
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o.worldvertpos = mul(unity_ObjectToWorld, v.vertex);
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return o;
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}
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float4 frag(vertexOutput i) : COLOR
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{
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i.normal = normalize(i.normal);
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//视角法线
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float3 viewdir = normalize(i.worldvertpos.xyz - _WorldSpaceCameraPos.xyz);
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float4 color = _AtmoColor;
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//视角法线与模型法线点积形成中间为1向四周逐渐衰减为0的点积值，赋值透明通道，形成光晕效果
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color.a = pow(saturate(dot(viewdir, i.normal)),_OutLightPow);
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color.a *= _OutLightStrength * dot(viewdir, i.normal);
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return color;
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}
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ENDCG
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}
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}
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FallBack "Diffuse"
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} |