HpBorder.shader

Shader "Custom/HpBorder"
{
    Properties
    {
        _Scale("Scale", Range(0.0, 1.0)) = 0.5
    }
    SubShader
    {
        Tags {"RenderType"="Transparent" "Queue"="Transparent"}
        LOD 200
        Lighting Off
        ZWrite Off
        Cull Off
        Fog { Mode Off }

        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            
            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
                half4 color : COLOR;   
            };
            
            struct v2f
            {
                float2 uv : TEXCOORD0;
                float4 vertex : SV_POSITION;
                half4 color : COLOR;   
            };

            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
                o.color = v.color;
                o.uv = v.uv;
                return o;
            }

            float _Scale;

            half4 frag (v2f i) : SV_Target
            {
                //return i.color;
                return half4(i.uv.x * _Scale, i.uv.y * _Scale, 0, 0);
            }
            ENDCG
        }
    }
}