feat: Wind shader

Assets/Prefabs/GardenRose.prefab

@@ -10,6 +10,7 @@ GameObject:
   m_Component:
   - component: {fileID: 4956538614995491313}
   - component: {fileID: 8356824105892962927}
+  - component: {fileID: 3858647786356030127}
   m_Layer: 0
   m_Name: GardenRose
   m_TagString: Untagged
@@ -52,7 +53,7 @@ SpriteRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 10754, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 2100000, guid: d1dd69c198f85784eb5adbc3dafeddca, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -84,3 +85,16 @@ SpriteRenderer:
   m_WasSpriteAssigned: 1
   m_MaskInteraction: 0
   m_SpriteSortPoint: 0
+--- !u!114 &3858647786356030127
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 2147392553565862127}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: a664b406e50e2054bb5d9dd2415d208a, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  sprite: {fileID: 8356824105892962927}

Assets/Scenes/SampleScene.unity

@@ -858,7 +858,7 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 1, y: 1}
   m_AnchorMax: {x: 1, y: 1}
-  m_AnchoredPosition: {x: -8.399948, y: -7.7999573}
+  m_AnchoredPosition: {x: -8.399963, y: -7.7999573}
   m_SizeDelta: {x: 51.5091, y: 51.5091}
   m_Pivot: {x: 1, y: 1}
 --- !u!114 &439702001
@@ -1424,7 +1424,7 @@ SpriteRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 10754, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 2100000, guid: 60856d36f46f20845bc1fe2fea718085, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0

Assets/Scripts/View/Dependencies.cs

@@ -11,7 +11,7 @@ namespace View {
 		public CustomInput CustomInput { private set; get; }
 
 		private void Awake() {
-			Model = new Model(20, 5);
+			Model = new Model(1, 5);
 
 			IExpressionInput input = FindObjectOfType<ExpressionInput>();
 			IExpressionInput visibility = FindObjectOfType<UIVisibility>();

Assets/Scripts/View/Scene.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: c1366d1a4dc80074e845d880fc05603e
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/View/Scene/GardenFlower.cs

@@ -0,0 +1,14 @@
+using System;
+using UnityEngine;
+using Random = UnityEngine.Random;
+
+namespace View.Scene {
+	public class GardenFlower : MonoBehaviour {
+		[SerializeField] private SpriteRenderer sprite;
+		private static readonly int WindOffset = Shader.PropertyToID("_WindOffset");
+
+		private void Awake() {
+			sprite.material.SetFloat(WindOffset, Random.Range(0f, 2f * Mathf.PI));
+		}
+	}
+}

Assets/Scripts/View/Scene/GardenFlower.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a664b406e50e2054bb5d9dd2415d208a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 40c53337dd8aac34cabdd5debb660d9e
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/GrowingFlower.mat

@@ -0,0 +1,45 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: GrowingFlower
+  m_Shader: {fileID: 4800000, guid: 7fca9ecfb5f525a4bb98a750615272f0, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
+  m_ValidKeywords: []
+  m_InvalidKeywords: []
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: -1
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_LockedProperties: 
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs:
+    - _AlphaTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MainTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats:
+    - PixelSnap: 0
+    - _EnableExternalAlpha: 0
+    - _WindAmplitude: 0.2
+    - _WindOffset: 0
+    - _WindSpeed: 0.5
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _Flip: {r: 1, g: 1, b: 1, a: 1}
+    - _RendererColor: {r: 1, g: 1, b: 1, a: 1}
+  m_BuildTextureStacks: []

Assets/Shaders/GrowingFlower.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 60856d36f46f20845bc1fe2fea718085
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/SpriteWind.shader

@@ -0,0 +1,144 @@
+// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)
+
+Shader "Sprites/Wind"
+{
+    Properties
+    {
+        [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+        _Color ("Tint", Color) = (1,1,1,1)
+
+        _WindSpeed ("Wind Speed", Float) = 1
+        _WindAmplitude ("Wind Speed", Float) = 1
+        [PerRendererData] _WindOffset ("Wind Offset", Float) = 0
+
+        [MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
+        [HideInInspector] _RendererColor ("RendererColor", Color) = (1,1,1,1)
+        [HideInInspector] _Flip ("Flip", Vector) = (1,1,1,1)
+        [PerRendererData] _AlphaTex ("External Alpha", 2D) = "white" {}
+        [PerRendererData] _EnableExternalAlpha ("Enable External Alpha", Float) = 0
+    }
+
+    SubShader
+    {
+        Tags
+        {
+            "Queue"="Transparent"
+            "IgnoreProjector"="True"
+            "RenderType"="Transparent"
+            "PreviewType"="Plane"
+            "CanUseSpriteAtlas"="True"
+        }
+
+        Cull Off
+        Lighting Off
+        ZWrite Off
+        Blend One OneMinusSrcAlpha
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex SpriteVert
+            #pragma fragment SpriteFrag
+            #pragma target 2.0
+            #pragma multi_compile_instancing
+            #pragma multi_compile_local _ PIXELSNAP_ON
+            #pragma multi_compile _ ETC1_EXTERNAL_ALPHA
+
+            #include "UnityCG.cginc"
+
+            #ifdef UNITY_INSTANCING_ENABLED
+
+                UNITY_INSTANCING_BUFFER_START(PerDrawSprite)
+                // SpriteRenderer.Color while Non-Batched/Instanced.
+                UNITY_DEFINE_INSTANCED_PROP(fixed4, unity_SpriteRendererColorArray)
+                // this could be smaller but that's how bit each entry is regardless of type
+                UNITY_DEFINE_INSTANCED_PROP(fixed2, unity_SpriteFlipArray)
+                UNITY_INSTANCING_BUFFER_END(PerDrawSprite)
+
+                #define _RendererColor  UNITY_ACCESS_INSTANCED_PROP(PerDrawSprite, unity_SpriteRendererColorArray)
+                #define _Flip           UNITY_ACCESS_INSTANCED_PROP(PerDrawSprite, unity_SpriteFlipArray)
+
+            #endif // instancing
+
+            CBUFFER_START(UnityPerDrawSprite)
+                #ifndef UNITY_INSTANCING_ENABLED
+                fixed4 _RendererColor;
+                fixed2 _Flip;
+                #endif
+                float _EnableExternalAlpha;
+            CBUFFER_END
+
+            // Material Color.
+            fixed4 _Color;
+
+            // Material Wind
+            float _WindSpeed;
+            float _WindAmplitude;
+            float _WindOffset;
+
+            struct appdata_t
+            {
+                float4 vertex : POSITION;
+                float4 color : COLOR;
+                float2 texcoord : TEXCOORD0;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct v2f
+            {
+                float4 vertex : SV_POSITION;
+                fixed4 color : COLOR;
+                float2 texcoord : TEXCOORD0;
+                UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+            inline float4 UnityFlipSprite(in float3 pos, in fixed2 flip)
+            {
+                return float4(pos.xy * flip, pos.z, 1.0);
+            }
+
+            v2f SpriteVert(appdata_t IN)
+            {
+                v2f OUT;
+
+                UNITY_SETUP_INSTANCE_ID(IN);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(OUT);
+
+                OUT.vertex = UnityFlipSprite(IN.vertex, _Flip);
+                OUT.vertex.x += sin(_Time.y * _WindSpeed + _WindOffset) * _WindAmplitude * IN.texcoord.y;
+                OUT.vertex = UnityObjectToClipPos(OUT.vertex);
+                OUT.texcoord = IN.texcoord;
+                OUT.color = IN.color * _Color * _RendererColor;
+
+                #ifdef PIXELSNAP_ON
+                    OUT.vertex = UnityPixelSnap (OUT.vertex);
+                #endif
+
+                return OUT;
+            }
+
+            sampler2D _MainTex;
+            sampler2D _AlphaTex;
+
+            fixed4 SampleSpriteTexture(float2 uv)
+            {
+                fixed4 color = tex2D(_MainTex, uv);
+
+                #if ETC1_EXTERNAL_ALPHA
+                    fixed4 alpha = tex2D (_AlphaTex, uv);
+                    color.a = lerp (color.a, alpha.r, _EnableExternalAlpha);
+                #endif
+
+                return color;
+            }
+
+            fixed4 SpriteFrag(v2f IN) : SV_Target
+            {
+                fixed4 c = SampleSpriteTexture(IN.texcoord) * IN.color;
+                c.rgb *= c.a;
+                return c;
+            }
+            ENDCG
+        }
+    }
+}

Assets/Shaders/SpriteWind.shader.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 7fca9ecfb5f525a4bb98a750615272f0
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/Wind.mat

@@ -0,0 +1,45 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: Wind
+  m_Shader: {fileID: 4800000, guid: 7fca9ecfb5f525a4bb98a750615272f0, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
+  m_ValidKeywords: []
+  m_InvalidKeywords: []
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: -1
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_LockedProperties: 
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs:
+    - _AlphaTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MainTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats:
+    - PixelSnap: 0
+    - _EnableExternalAlpha: 0
+    - _WindAmplitude: 0.5
+    - _WindOffset: 0
+    - _WindSpeed: 1
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _Flip: {r: 1, g: 1, b: 1, a: 1}
+    - _RendererColor: {r: 1, g: 1, b: 1, a: 1}
+  m_BuildTextureStacks: []

Assets/Shaders/Wind.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: d1dd69c198f85784eb5adbc3dafeddca
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: