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/PixelizeLeaf/Shader/PixelizeLeaf.shader

@@ -0,0 +1,64 @@
+//----------------------------------------------------------------------------------------------------------
+// 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/PixelizeLeaf"
+{
+	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;
+			#define _PixelSize _Params.x
+			#define _PixelRatio _Params.y
+			#define _PixelScaleX _Params.z
+			#define _PixelScaleY _Params.w
+
+
+			float2 TrianglePixelizeUV(float2 uv)
+			{
+				float2 pixelScale = _PixelSize * float2(_PixelScaleX, _PixelScaleY / _PixelRatio);
+
+				//乘以缩放，向下取整，再除以缩放，得到分段UV
+				float2 coord = floor(uv * pixelScale) / pixelScale;
+
+				uv -= coord;
+				uv *= pixelScale;
+
+				//进行像素偏移处理
+				coord += 
+					float2(step(1.0 - uv.y, uv.x) / (pixelScale.x),	// Leaf X
+					step(uv.x, uv.y) / (pixelScale.y)//Leaf Y
+					);
+
+				return  coord;
+			}
+
+
+			float4 Frag(VaryingsDefault i) : SV_Target
+			{
+				float2 uv = TrianglePixelizeUV(i.texcoord);
+
+				return SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, uv);
+			}
+
+			ENDHLSL
+
+		}
+	}
+}