made shader that blurs image using a 3x3 kernel

Assets/Materials/ComputeShaderResultMaterial.mat

@@ -21,7 +21,7 @@ Material:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_Name: ComputeShaderResultMaterial
-  m_Shader: {fileID: 4800000, guid: 650dd9526735d5b46b79224bc6e94025, type: 3}
+  m_Shader: {fileID: 10752, guid: 0000000000000000f000000000000000, type: 0}
   m_Parent: {fileID: 0}
   m_ModifiedSerializedProperties: 0
   m_ValidKeywords: []
@@ -30,8 +30,7 @@ Material:
   m_EnableInstancingVariants: 0
   m_DoubleSidedGI: 0
   m_CustomRenderQueue: -1
-  stringTagMap:
+  stringTagMap: {}
-    RenderType: Opaque
   disabledShaderPasses: []
   m_LockedProperties: 
   m_SavedProperties:

Assets/Materials/openttd.mat

@@ -0,0 +1,33 @@
+%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: openttd
+  m_Shader: {fileID: 10752, guid: 0000000000000000f000000000000000, type: 0}
+  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:
+    - _MainTex:
+        m_Texture: {fileID: 2800000, guid: ac4ea20a37b3d4943b8889efe1821948, type: 3}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats: []
+    m_Colors: []
+  m_BuildTextureStacks: []

Assets/Materials/openttd.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: c55c9209d94c99c48b3814e8b9dfac0c
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Materials/sabeltann.mat

@@ -0,0 +1,33 @@
+%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: sabeltann
+  m_Shader: {fileID: 10752, guid: 0000000000000000f000000000000000, type: 0}
+  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:
+    - _MainTex:
+        m_Texture: {fileID: 2800000, guid: 0766dead55e68a44d98a3984d5862da9, type: 3}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats: []
+    m_Colors: []
+  m_BuildTextureStacks: []

Assets/Materials/sabeltann.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: abe8e653868665f4cac7d7121c272dba
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scenes/SampleScene.unity

@@ -135,7 +135,7 @@ GameObject:
   - component: {fileID: 702131711}
   - component: {fileID: 702131710}
   m_Layer: 0
-  m_Name: Quad
+  m_Name: Result
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -200,7 +200,7 @@ Transform:
   m_GameObject: {fileID: 702131709}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalPosition: {x: 0.505, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
@@ -368,7 +368,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: a453b492952575646aa79f717aa4c52a, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  _computeShader: {fileID: 7200000, guid: 3df3413c2fff3cc41a2eb5505b4c260c, type: 3}
+  _computeShader: {fileID: 7200000, guid: c35861df311fdba4e850d9c8a49c65df, type: 3}
   _inputTexture: {fileID: 2800000, guid: ac4ea20a37b3d4943b8889efe1821948, type: 3}
   _resultTexture: {fileID: 0}
   _resultMaterial: {fileID: 2100000, guid: d7655914d2a5f2b458b0fecf0f73713e, type: 2}
@@ -462,7 +462,7 @@ Transform:
   m_GameObject: {fileID: 963194225}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: -0, z: -0.87}
+  m_LocalPosition: {x: 0, y: 0.93, z: -1.355}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
@@ -512,6 +512,89 @@ MonoBehaviour:
     mipBias: 0
     varianceClampScale: 0.9
     contrastAdaptiveSharpening: 0
+--- !u!1 &1222278644
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1222278647}
+  - component: {fileID: 1222278646}
+  - component: {fileID: 1222278645}
+  m_Layer: 0
+  m_Name: Input
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!23 &1222278645
+MeshRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1222278644}
+  m_Enabled: 1
+  m_CastShadows: 1
+  m_ReceiveShadows: 1
+  m_DynamicOccludee: 1
+  m_StaticShadowCaster: 0
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 2
+  m_RayTraceProcedural: 0
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
+  - {fileID: 2100000, guid: c55c9209d94c99c48b3814e8b9dfac0c, type: 2}
+  m_StaticBatchInfo:
+    firstSubMesh: 0
+    subMeshCount: 0
+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
+  m_LightProbeVolumeOverride: {fileID: 0}
+  m_ScaleInLightmap: 1
+  m_ReceiveGI: 1
+  m_PreserveUVs: 0
+  m_IgnoreNormalsForChartDetection: 0
+  m_ImportantGI: 0
+  m_StitchLightmapSeams: 1
+  m_SelectedEditorRenderState: 3
+  m_MinimumChartSize: 4
+  m_AutoUVMaxDistance: 0.5
+  m_AutoUVMaxAngle: 89
+  m_LightmapParameters: {fileID: 0}
+  m_SortingLayerID: 0
+  m_SortingLayer: 0
+  m_SortingOrder: 0
+  m_AdditionalVertexStreams: {fileID: 0}
+--- !u!33 &1222278646
+MeshFilter:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1222278644}
+  m_Mesh: {fileID: 10210, guid: 0000000000000000e000000000000000, type: 0}
+--- !u!4 &1222278647
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1222278644}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: -0.505, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1660057539 &9223372036854775807
 SceneRoots:
   m_ObjectHideFlags: 0
@@ -520,3 +603,4 @@ SceneRoots:
   - {fileID: 705507995}
   - {fileID: 768508630}
   - {fileID: 702131712}
+  - {fileID: 1222278647}

Assets/Scripts/ComputeController.cs

@@ -54,18 +54,19 @@ public class ComputeController : MonoBehaviour
         _kernelHandle = _computeShader.FindKernel("cs_main");
         _computeShader.SetTexture(_kernelHandle, SourceTexture, _inputTexture);
         _computeShader.SetTexture(_kernelHandle, Result, _resultTexture);
+        RunComputeShader();
     }
 
     #endregion
 
     #region Update
 
-    private void Update()
+    // private void Update()
-    {
+    // {
-        ShaderUpdate();
+    //     ShaderUpdate();
-
+    //
-        _resultMaterial.mainTexture = _resultTexture;
+    //     _resultMaterial.mainTexture = _resultTexture;
-    }
+    // }
 
     private void ShaderUpdate()
     {

Assets/Shaders/GaussianBlur.compute

@@ -0,0 +1,38 @@
+#pragma kernel cs_main
+
+Texture2D source_texture;
+RWTexture2D<float4> result;
+
+[numthreads(8, 8, 1)]
+void cs_main(uint3 id : SV_DispatchThreadID)
+{
+    //Define a basic 3x3 Gaussian kernel (just for illustration)
+    // float3x3 kernel = {
+    //     {7, 1, 1},
+    //     {1, 20, 1},
+    //     {1, 1, 7}
+    // };
+
+    float3x3 kernel = {
+        { 1, 2, 1 },
+        { 2, 4, 2 },
+        { 1, 2, 1 }
+    };
+    
+    // Normalize kernel
+    //kernel /= 7+1+1+1+20+1+1+1+7;
+    kernel /= 16;
+
+    float4 sum = float4(0, 0, 0, 0);
+
+    // Convolution: Multiply the surrounding pixels with the kernel and sum them
+    for (int y = -1; y <= 1; y++)
+    {
+        for (int x = -1; x <= 1; x++)
+        {
+            sum += source_texture[id.xy + uint2(x, y)] * kernel[x + 1][y + 1];
+        }
+    }
+
+    result[id.xy] = sum;
+}

Assets/Shaders/GaussianBlur.compute.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: c35861df311fdba4e850d9c8a49c65df
+ComputeShaderImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Textures/sabeltann.png.meta

@@ -0,0 +1,127 @@
+fileFormatVersion: 2
+guid: 0766dead55e68a44d98a3984d5862da9
+TextureImporter:
+  internalIDToNameTable: []
+  externalObjects: {}
+  serializedVersion: 12
+  mipmaps:
+    mipMapMode: 0
+    enableMipMap: 1
+    sRGBTexture: 1
+    linearTexture: 0
+    fadeOut: 0
+    borderMipMap: 0
+    mipMapsPreserveCoverage: 0
+    alphaTestReferenceValue: 0.5
+    mipMapFadeDistanceStart: 1
+    mipMapFadeDistanceEnd: 3
+  bumpmap:
+    convertToNormalMap: 0
+    externalNormalMap: 0
+    heightScale: 0.25
+    normalMapFilter: 0
+    flipGreenChannel: 0
+  isReadable: 0
+  streamingMipmaps: 0
+  streamingMipmapsPriority: 0
+  vTOnly: 0
+  ignoreMipmapLimit: 0
+  grayScaleToAlpha: 0
+  generateCubemap: 6
+  cubemapConvolution: 0
+  seamlessCubemap: 0
+  textureFormat: 1
+  maxTextureSize: 2048
+  textureSettings:
+    serializedVersion: 2
+    filterMode: 1
+    aniso: 1
+    mipBias: 0
+    wrapU: 0
+    wrapV: 0
+    wrapW: 0
+  nPOTScale: 1
+  lightmap: 0
+  compressionQuality: 50
+  spriteMode: 0
+  spriteExtrude: 1
+  spriteMeshType: 1
+  alignment: 0
+  spritePivot: {x: 0.5, y: 0.5}
+  spritePixelsToUnits: 100
+  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
+  spriteGenerateFallbackPhysicsShape: 1
+  alphaUsage: 1
+  alphaIsTransparency: 0
+  spriteTessellationDetail: -1
+  textureType: 0
+  textureShape: 1
+  singleChannelComponent: 0
+  flipbookRows: 1
+  flipbookColumns: 1
+  maxTextureSizeSet: 0
+  compressionQualitySet: 0
+  textureFormatSet: 0
+  ignorePngGamma: 0
+  applyGammaDecoding: 0
+  swizzle: 50462976
+  cookieLightType: 0
+  platformSettings:
+  - serializedVersion: 3
+    buildTarget: DefaultTexturePlatform
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 3
+    buildTarget: Standalone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 3
+    buildTarget: Server
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  spriteSheet:
+    serializedVersion: 2
+    sprites: []
+    outline: []
+    physicsShape: []
+    bones: []
+    spriteID: 
+    internalID: 0
+    vertices: []
+    indices: 
+    edges: []
+    weights: []
+    secondaryTextures: []
+    nameFileIdTable: {}
+  mipmapLimitGroupName: 
+  pSDRemoveMatte: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: