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1、Unity3D描边效果Unity3D描边效果 Unity开发中，描边效果，使用Shader就可以轻松实现。这里先给出 效果图 但是我并不熟悉shader这一块，这里直接给出 shader 的代码： Shader Outlined/Silhouetted Diffuse Properties _Color (Main Color, Color) = (1,1,1,1) _OutlineColor (Outline Color, Color) = (0,0,0,1) /改变这个能改变轮廓边的颜色 _Outline (Outline width, Range (0.0, 0.03) = 0.008
2、/改变这个能改变轮廓边的粗细 _MainTex (Base (RGB), 2D) = white CGINCLUDE #include UnityCG.cginc struct appdata float4 vertex : POSITION; float3 normal : NORMAL; ; struct v2f float4 pos : POSITION; float4 color : COLOR; ; uniform float _Outline; uniform float4 _OutlineColor; v2f vert(appdata v) / just make a copy
3、of incoming vertex data but scaled according to normal direction v2f o; o.pos = mul(UNITY_MATRIX_MVP, v.vertex); float3 norm = mul (float3x3)UNITY_MATRIX_IT_MV, v.normal); float2 offset = TransformViewToProjection(norm.xy); o.pos.xy += offset * o.pos.z * _Outline; o.color = _OutlineColor; return o;
4、ENDCG SubShader Tags Queue = Transparent / note that a vertex shader is specified here but its using the one above Pass Name OUTLINE Tags LightMode = Always Cull Off ZWrite Off ZTest Always ColorMask RGB / alpha not used / you can choose what kind of blending mode you want for the outline Blend SrcA
5、lpha OneMinusSrcAlpha / Normal /Blend One One / Additive /Blend One OneMinusDstColor / Soft Additive /Blend DstColor Zero / Multiplicative /Blend DstColor SrcColor / 2x Multiplicative CGPROGRAM #pragma vertex vert #pragma fragment frag half4 frag(v2f i) :COLOR return i.color; ENDCG Pass Name BASE ZW
6、rite On ZTest LEqual Blend SrcAlpha OneMinusSrcAlpha Material Diffuse _Color Ambient _Color Lighting On SetTexture _MainTex ConstantColor _Color Combine texture * constant SetTexture _MainTex Combine previous * primary DOUBLE SubShader Tags Queue = Transparent Pass Name OUTLINE Tags LightMode = Alwa
7、ys Cull Front ZWrite Off ZTest Always ColorMask RGB / you can choose what kind of blending mode you want for the outline Blend SrcAlpha OneMinusSrcAlpha / Normal /Blend One One / Additive /Blend One OneMinusDstColor / Soft Additive /Blend DstColor Zero / Multiplicative /Blend DstColor SrcColor / 2x
8、Multiplicative CGPROGRAM #pragma vertex vert #pragma exclude_renderers gles xbox360 ps3 ENDCG SetTexture _MainTex combine primary Pass Name BASE ZWrite On ZTest LEqual Blend SrcAlpha OneMinusSrcAlpha Material Diffuse _Color Ambient _Color Lighting On SetTexture _MainTex ConstantColor _Color Combine texture * constant SetTexture _MainTex Combine previous * primary DOUBLE Fallback Diffuse 如果你看不懂，直接拿去在实例中测试一下就明白了。
