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

Shader "FFALCON/PointerProgressShader"
{
	Properties
	{
	  _Color("Color", Color) = (1, 1, 1, 1)
	  _InnerDiameter("InnerDiameter", Range(0, 50.0)) = 1.5
	  _OuterDiameter("OuterDiameter", Range(0.00872665, 100.0)) = 2.0
	  _DistanceInMeters("DistanceInMeters", Range(0.0, 10000.0)) = 2.0
	  _Progress("Progress", Range(0,360)) = 2.0
	  _Center("Center", vector) = (0,0,0)
	}

	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;
		float4 _Center;
		float _Progress;
		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
		{
			float2 pos = i.position - _Center;
			float angle = degrees(atan2(pos.y, pos.x));
			_Progress -= 180;
			float d = 1 - step(_Progress, angle);
			fixed4 color = _Color;
			color.a = d;
			return  color;

		}

		ENDCG
	}
	}
}