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

* Super Retro VFX!

* Updated Screen Jump default

* also airboarder works now

---------

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

Assets/X-PostProcessing/Effects/PixelizeLeaf/PixelizeLeaf.cs

@@ -0,0 +1,83 @@
+//----------------------------------------------------------------------------------------------------------
+// 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
+//----------------------------------------------------------------------------------------------------------
+
+using System;
+using UnityEngine;
+using UnityEngine.Rendering;
+using UnityEngine.Rendering.PostProcessing;
+
+
+namespace XPostProcessing
+{
+
+    [Serializable]
+    [PostProcess(typeof(PixelizeLeafRenderer), PostProcessEvent.BeforeStack, "X-PostProcessing/Pixelize/PixelizeLeaf")]
+    public class PixelizeLeaf : PostProcessEffectSettings
+    {
+
+        [Range(0.01f, 1.0f)]
+        public FloatParameter pixelSize = new FloatParameter { value = 0.8f };
+
+        public BoolParameter useAutoScreenRatio = new BoolParameter { value = true };
+
+        [Range(0.2f, 5.0f)]
+        public FloatParameter pixelRatio = new FloatParameter { value = 1f };
+
+        [Range(0.2f, 5.0f), Tooltip("像素缩放X")]
+        public FloatParameter pixelScaleX = new FloatParameter { value = 1f };
+
+        [Range(0.2f, 5.0f), Tooltip("像素缩放Y")]
+        public FloatParameter pixelScaleY = new FloatParameter { value = 1f };
+    }
+
+    public sealed class PixelizeLeafRenderer : PostProcessEffectRenderer<PixelizeLeaf>
+    {
+        private const string PROFILER_TAG = "X-PixelizeLeaf";
+        private Shader shader;
+
+        public override void Init()
+        {
+            shader = Shader.Find("Hidden/X-PostProcessing/PixelizeLeaf");
+        }
+
+        public override void Release()
+        {
+            base.Release();
+        }
+
+        static class ShaderIDs
+        {
+            internal static readonly int Params = Shader.PropertyToID("_Params");
+        }
+
+        public override void Render(PostProcessRenderContext context)
+        {
+            CommandBuffer cmd = context.command;
+            PropertySheet sheet = context.propertySheets.Get(shader);
+            cmd.BeginSample(PROFILER_TAG);
+
+            float size = (1.01f - settings.pixelSize) * 10f;
+
+            float ratio = settings.pixelRatio;
+            if (settings.useAutoScreenRatio)
+            {
+                ratio = (float)(context.width / (float)context.height);
+                if (ratio == 0)
+                {
+                    ratio = 1f;
+                }
+            }
+
+            sheet.properties.SetVector(ShaderIDs.Params, new Vector4(size, ratio, settings.pixelScaleX * 20, settings.pixelScaleY * 20));
+
+            cmd.BlitFullscreenTriangle(context.source, context.destination, sheet, 0);
+            cmd.EndSample(PROFILER_TAG);
+        }
+    }
+}