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/GlitchScanLineJitter/GlitchScanLineJitter.cs

@@ -0,0 +1,101 @@
+
+//----------------------------------------------------------------------------------------------------------
+// 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]
+    public sealed class DirectionParameter : ParameterOverride<Direction> { }
+
+    [Serializable]
+    [PostProcess(typeof(GlitchScanLineJitterRenderer), PostProcessEvent.AfterStack, "X-PostProcessing/Glitch/ScanLineJitter")]
+    public class GlitchScanLineJitter : PostProcessEffectSettings
+    {
+
+        public DirectionParameter JitterDirection  = new DirectionParameter { value = Direction.Horizontal };
+
+        public IntervalTypeParameter intervalType = new IntervalTypeParameter { value = IntervalType.Random };
+
+        [Range(0f, 25f)]
+        public FloatParameter frequency = new FloatParameter { value = 1f };
+
+
+        [Range(0.0f, 1.0f)]
+        public FloatParameter JitterIndensity = new FloatParameter { value = 0.1f };
+
+    }
+
+    public sealed class GlitchScanLineJitterRenderer : PostProcessEffectRenderer<GlitchScanLineJitter>
+    {
+        private const string PROFILER_TAG = "X-GlitchScanLineJitter";
+        private Shader shader;
+        private float randomFrequency;
+
+        public override void Init()
+        {
+            shader = Shader.Find("Hidden/X-PostProcessing/Glitch/ScanLineJitter");
+        }
+
+        public override void Release()
+        {
+            base.Release();
+        }
+
+        static class ShaderIDs
+        {
+            internal static readonly int Params = Shader.PropertyToID("_Params");
+            internal static readonly int JitterIndensity = Shader.PropertyToID("_ScanLineJitter");
+        }
+
+        public override void Render(PostProcessRenderContext context)
+        {
+            CommandBuffer cmd = context.command;
+            PropertySheet sheet = context.propertySheets.Get(shader);
+            cmd.BeginSample(PROFILER_TAG);
+
+            UpdateFrequency(sheet);
+
+            float displacement = 0.005f + Mathf.Pow(settings.JitterIndensity, 3) * 0.1f;
+            float threshold = Mathf.Clamp01(1.0f - settings.JitterIndensity * 1.2f);
+
+            //sheet.properties.SetVector(ShaderIDs.Params, new Vector3(settings.amount, settings.speed, );
+
+            sheet.properties.SetVector(ShaderIDs.Params, new Vector3(displacement, threshold, settings.intervalType.value == IntervalType.Random ? randomFrequency : settings.frequency));
+
+            context.command.BlitFullscreenTriangle(context.source, context.destination, sheet, (int)settings.JitterDirection.value);
+            cmd.EndSample(PROFILER_TAG);
+        }
+
+
+        void UpdateFrequency(PropertySheet sheet)
+        {
+            if (settings.intervalType.value == IntervalType.Random)
+            {
+                randomFrequency = UnityEngine.Random.Range(0, settings.frequency);
+            }
+
+            if (settings.intervalType.value == IntervalType.Infinite)
+            {
+                sheet.EnableKeyword("USING_FREQUENCY_INFINITE");
+            }
+            else
+            {
+                sheet.DisableKeyword("USING_FREQUENCY_INFINITE");
+            }
+        }
+    }
+}
+