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Shader "UMotion Editor/Unlit Dashed Line"
{
Properties
{
_Color("Line Color (RGB) Trans (A)", color) = (0, 0, 0, 1)
_Thickness("Line Thikness", Range(0, 4)) = 0.9
_DashFrequency("Dash Frequency", Range(0, 150)) = 100
}
SubShader
{
Tags {"Queue"="Transparent" "RenderType"="Transparent" "IgnoreProjector"="True" "DisableBatching"="True" }
LOD 100
ZWrite Off
Blend SrcAlpha OneMinusSrcAlpha
Cull Off
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma target 3.0
#include "UnityCG.cginc"
fixed4 _Color;
half _Thickness;
half _DashFrequency;
struct vInput
{
float4 vertex : POSITION;
half4 texcoord : TEXCOORD0;
};
struct vOutput
{
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
};
vOutput vert(vInput i)
{
vOutput o;
o.pos = UnityObjectToClipPos(i.vertex);
o.uv = i.texcoord.xy;
o.uv.x *= length(float3(unity_ObjectToWorld[0].z, unity_ObjectToWorld[1].z, unity_ObjectToWorld[2].z));
return o;
}
fixed4 frag(vOutput i) : SV_Target
{
half2 mass = half2(sin(i.uv.x * _DashFrequency), i.uv.y);
half2 width = abs(ddx(mass)) + abs(ddy(mass));
half2 smoothed = smoothstep(half2(0, 0), width * _Thickness, mass.xy);
half alpha = max(smoothed.x, smoothed.y);
return fixed4(_Color.x, _Color.y, _Color.z, 1 - alpha);
}
ENDCG
} //Pass
} //SubShader
} //Shader
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