GHZSDKXR/Samples~/SDK/Runtime/Resources/Pointer/PointerShader.shader

Shader "FFALCON/Dot"
{
  Properties 
  {
    _Color  ("Color", Color) = ( 1, 1, 1, 1 )
    _InnerDiameter ("InnerDiameter", Range(0, 10.0)) = 1.5
    _OuterDiameter ("OuterDiameter", Range(0.00872665, 10.0)) = 2.0
    _DistanceInMeters ("DistanceInMeters", Range(0.0, 10000.0)) = 2.0
  }

  SubShader 
  {
    Tags { "Queue"="Overlay" "IgnoreProjector"="True" "RenderType"="Transparent" }
    Pass 
      {
      Blend SrcAlpha OneMinusSrcAlpha, OneMinusDstAlpha One
      AlphaTest Off
      Cull Back
      Lighting Off
      ZWrite Off
      ZTest Always

      Fog { Mode Off }
      CGPROGRAM

      #pragma vertex vert
      #pragma fragment frag

      #include "UnityCG.cginc"

      uniform float4 _Color;
      uniform float _InnerDiameter;
      uniform float _OuterDiameter;
      uniform float _DistanceInMeters;

      struct vertexInput 
      {
        float4 vertex : POSITION;
      };

      struct fragmentInput
      {
          float4 position : SV_POSITION;
      };

      fragmentInput vert(vertexInput i) 
      {
        float scale = lerp(_OuterDiameter, _InnerDiameter, i.vertex.z);

        float3 vert_out = float3(i.vertex.x * scale, i.vertex.y * scale, _DistanceInMeters);

        fragmentInput o;
        o.position = UnityObjectToClipPos (vert_out);
        return o;
      }

      fixed4 frag(fragmentInput i) : SV_Target 
      {
        fixed4 ret = _Color;
        return ret;
      }

      ENDCG
    }
  }
}