Retro VFX! (also airboarder works now) (#780)

* Super Retro VFX!

* Updated Screen Jump default

* also airboarder works now

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Co-authored-by: minenice55 <star.elementa@gmail.com>

Assets/X-PostProcessing/Effects/PixelizeLed/Shader/PixelizeLed.shader

@@ -0,0 +1,75 @@
+//----------------------------------------------------------------------------------------------------------
+// X-PostProcessing Library
+// https://github.com/QianMo/X-PostProcessing-Library
+// Copyright (C) 2020 QianMo. All rights reserved.
+// Licensed under the MIT License 
+// You may not use this file except in compliance with the License.You may obtain a copy of the License at
+// http://opensource.org/licenses/MIT
+//----------------------------------------------------------------------------------------------------------
+
+Shader "Hidden/X-PostProcessing/PixelizeLed"
+{
+	SubShader
+	{
+		Cull Off ZWrite Off ZTest Always
+
+		Pass
+		{
+			HLSLPROGRAM
+
+			#pragma vertex VertDefault
+			#pragma fragment Frag
+
+			#include "../../../Shaders/StdLib.hlsl"
+			#include "../../../Shaders/XPostProcessing.hlsl"
+
+			
+			half4 _Params;
+			half4 _BackgroundColor;
+
+			#define _PixelSize _Params.x
+			#define _PixelRatio _Params.y
+			#define _LedRadius _Params.z
+
+			float2 RectPixelizeUV(half2 uv)
+			{
+				float pixelScale = 1.0 / _PixelSize;
+				//除以缩放系数，在向上取整，再乘以缩放系数，得到分段UV
+				float2 coord = half2(pixelScale * floor(uv.x / (pixelScale)), (pixelScale * _PixelRatio ) * floor(uv.y / (pixelScale *_PixelRatio)));
+
+				return  coord;
+			}
+
+
+
+			float4 Frag(VaryingsDefault i) : SV_Target
+			{
+
+				// 实现矩形像素效果
+				float2 uv = RectPixelizeUV(i.texcoord);
+				float4 color = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, uv);
+
+				// 计算矩形像素坐标
+				half2 coord = i.texcoord * half2(_PixelSize, _PixelSize / _PixelRatio);
+
+				// 横纵坐标强度渐变
+				half ledX = abs(sin(coord.x * 3.1415)) * 1.5;
+				half ledY = abs(sin(coord.y * 3.1415)) * 1.5;
+				// 求解LedValue
+				half ledValue = ledX * ledY;
+				// led半径校正
+				half radius = step(ledValue, _LedRadius);
+
+				//最终颜色 = 基础led颜色 + 渐变led颜色 + 背景颜色
+				color = ((1 - radius) * color) + ((color * ledValue) * radius) + radius * (1- ledValue)* _BackgroundColor;
+
+
+				return color;
+
+			}
+
+			ENDHLSL
+
+		}
+	}
+}