implement FFT waterfall

UnityProject/Assembly-CSharp.csproj

@@ -77,8 +77,11 @@
     <Compile Include="Assets\Scripts\VideoInput\InfraredCamera.cs" />
     <Compile Include="Assets\Scripts\VideoInput\KinectManagerBehaviour.cs" />
     <Compile Include="Assets\Scripts\VideoInput\KinectSensor.cs" />
+    <Compile Include="Assets\Scripts\Visualizer\CombMesh.cs" />
     <Compile Include="Assets\Scripts\Visualizer\IRPanelBehaviour.cs" />
     <Compile Include="Assets\Scripts\Visualizer\PointCloudBehaviour.cs" />
+    <Compile Include="Assets\Scripts\Visualizer\SpectrumVisualizer.cs" />
+    <Compile Include="Assets\Scripts\Visualizer\WaterfallVisualizer.cs" />
     <Compile Include="Assets\Scripts\Visualizer\WaveformVisualizerBehaviour.cs" />
     <Compile Include="Assets\ThridParty\KinectScript\CameraIntrinsics.cs" />
     <Compile Include="Assets\ThridParty\KinectScript\CollectionMap.cs" />
@@ -175,6 +178,7 @@
     <Compile Include="Assets\ThridParty\Windows\Kinect\TrackingConfidence.cs" />
     <Compile Include="Assets\ThridParty\Windows\Kinect\TrackingState.cs" />
     <Compile Include="Assets\ThridParty\Windows\Kinect\Vector4.cs" />
+    <None Include="Assets\Shader\FFT.shader" />
     <None Include="Assets\Shader\Vertex Modifier.shader" />
     <None Include="Assets\Resources\buildNumber.txt" />
     <Reference Include="Unity.RenderPipelines.Core.Editor">

UnityProject/Assets/HDRP/Flare.vfx

@@ -76,9 +76,7 @@ VisualEffectResource:
       64\n#define VFX_USE_POSITION_CURRENT 1\n#define VFX_USE_SEED_CURRENT 1\n#define
       VFX_USE_DIRECTION_CURRENT 1\n#define VFX_USE_VELOCITY_CURRENT 1\n#define VFX_USE_LIFETIME_CURRENT
       1\n#define VFX_USE_ALIVE_CURRENT 1\n#define VFX_USE_AGE_CURRENT 1\n#define VFX_LOCAL_SPACE
-      1\n\n\nCBUFFER_START(parameters)\n    float3 ArcSphere_sphere_center_a;\n    float
+      1\n\n\nCBUFFER_START(parameters)\n    float Speed_b;\n    uint3 PADDING_0;\nCBUFFER_END\n\n\n#include
-      ArcSphere_sphere_radius_a;\n    float ArcSphere_arc_a;\n    float Speed_b;\n
-      \   float DirectionBlend_b;\n    float Min_c;\n    float Max_c;\n    uint3 PADDING_0;\nCBUFFER_END\n\n\n#include
       \"Packages/com.unity.visualeffectgraph/Shaders/Common/VFXCommonCompute.cginc\"\n#include
       \"Packages/com.unity.visualeffectgraph/Shaders/VFXCommon.cginc\"\n\n\n\nRWByteAddressBuffer
       attributeBuffer;\nByteAddressBuffer sourceAttributeBuffer;\n\nCBUFFER_START(initParams)\n#if
@@ -129,17 +127,18 @@ VisualEffectResource:
       VFX_USE_PARTICLEID_CURRENT\n         particleId = particleIndex;\n#endif\n#if
       VFX_USE_SEED_CURRENT\n        seed = WangHash(particleIndex ^ systemSeed);\n#endif\n
       \       \n        {\n            PositionSphere_0( /*inout */position,  /*inout
-      */seed,  /*inout */direction, ArcSphere_sphere_center_a, ArcSphere_sphere_radius_a,
+      */seed,  /*inout */direction, float3(0,0,0), (float)1, (float)6.283185, (float)1);\n
-      ArcSphere_arc_a, (float)1);\n        }\n        VelocityRandomize_18D( /*inout
+      \       }\n        {\n            VelocityRandomize_18D( /*inout */velocity,
-      */velocity,  /*inout */direction,  /*inout */seed, Speed_b, DirectionBlend_b);\n
+      \ /*inout */direction,  /*inout */seed, Speed_b, (float)1);\n        }\n        {\n
-      \       SetAttribute_F01429A3( /*inout */lifetime,  /*inout */seed, Min_c, Max_c);\n
+      \           SetAttribute_F01429A3( /*inout */lifetime,  /*inout */seed, (float)4,
-      \       \n\n\n#if VFX_USE_ALIVE_CURRENT\n        if (alive)\n        {\n\t\t\tuint
+      (float)9);\n        }\n        \n\n\n#if VFX_USE_ALIVE_CURRENT\n        if (alive)\n
-      deadIndex = deadListIn.DecrementCounter();\n            uint index = deadListIn[deadIndex];\n
+      \       {\n\t\t\tuint deadIndex = deadListIn.DecrementCounter();\n            uint
-      \           attributeBuffer.Store3((index * 0x8 + 0x0) << 2,asuint(position));\n
+      index = deadListIn[deadIndex];\n            attributeBuffer.Store3((index *
-      \           attributeBuffer.Store3((index * 0x4 + 0x7F000) << 2,asuint(velocity));\n
+      0x8 + 0x0) << 2,asuint(position));\n            attributeBuffer.Store3((index
-      \           attributeBuffer.Store((index * 0x4 + 0x7F003) << 2,asuint(lifetime));\n
+      * 0x4 + 0x7F000) << 2,asuint(velocity));\n            attributeBuffer.Store((index
-      \           attributeBuffer.Store((index * 0x8 + 0x3) << 2,uint(alive));\n            attributeBuffer.Store((index
+      * 0x4 + 0x7F003) << 2,asuint(lifetime));\n            attributeBuffer.Store((index
-      * 0x8 + 0x4) << 2,asuint(age));\n            \n\n        }\n#else\n        uint
+      * 0x8 + 0x3) << 2,uint(alive));\n            attributeBuffer.Store((index *
+      0x8 + 0x4) << 2,asuint(age));\n            \n\n        }\n#else\n        uint
       index = particleIndex;\n        attributeBuffer.Store3((index * 0x8 + 0x0) <<
       2,asuint(position));\n        attributeBuffer.Store3((index * 0x4 + 0x7F000)
       << 2,asuint(velocity));\n        attributeBuffer.Store((index * 0x4 + 0x7F003)
@@ -210,8 +209,8 @@ VisualEffectResource:
       VFX_USE_SCALEY_CURRENT 1\n\t\t#define VFX_USE_SCALEZ_CURRENT 1\n\t\t#define
       VFX_USE_AGE_CURRENT 1\n\t\t#define VFX_BLENDMODE_ADD 1\n\t\t\n\t\t\n\t\t\n\t\t#define
       VFX_LOCAL_SPACE 1\n\t\t\n\n\t\tCBUFFER_START(parameters)\n\t\t    float4 Scale_d;\n\t\t
-      \   float Size_b;\n\t\t    float Scale_c;\n\t\t    float gradient_e;\n\t\t    uint
+      \   float gradient_e;\n\t\t    uint3 PADDING_0;\n\t\tCBUFFER_END\n\t\tTexture2D
-      PADDING_0;\n\t\tCBUFFER_END\n\t\tTexture2D mainTexture;\n\t\tSamplerState samplermainTexture;\n\t\t\n\n\t\t\n\t\t#define
+      mainTexture;\n\t\tSamplerState samplermainTexture;\n\t\t\n\n\t\t\n\t\t#define
       VFX_NEEDS_COLOR_INTERPOLATOR (VFX_USE_COLOR_CURRENT || VFX_USE_ALPHA_CURRENT)\n\t\t#define
       IS_TRANSPARENT_PARTICLE (!IS_OPAQUE_PARTICLE)\n\t\t\n\t\t#include \"Packages/com.unity.visualeffectgraph/Shaders/RenderPipeline/HDRP/VFXGlobalDefines.cginc\"\n\t\t\n\n\t\t\n\t\tByteAddressBuffer
       attributeBuffer;\t\n\t\t\n\t\t#if VFX_HAS_INDIRECT_DRAW\n\t\tStructuredBuffer<uint>
@@ -289,8 +288,9 @@ VisualEffectResource:
       scaleX = (float)1;\n\t\t\t\t\t\tfloat scaleY = (float)1;\n\t\t\t\t\t\tfloat
       scaleZ = (float)1;\n\t\t\t\t\t\tfloat age = asfloat(attributeBuffer.Load((index
       * 0x8 + 0x4) << 2));\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t#endif\n\t\t\t\t\t\t\n\t\t\t\tOrient_6(
-      /*inout */axisX,  /*inout */axisY,  /*inout */axisZ, position, velocity);\n\t\t\t\tSetAttribute_3278B22F(
+      /*inout */axisX,  /*inout */axisY,  /*inout */axisZ, position, velocity);\n\t\t\t\t{\n\t\t\t\t
-      /*inout */size, Size_b);\n\t\t\t\tSetAttribute_D5151644( /*inout */scaleX, Scale_c);\n\t\t\t\tAttributeFromCurve_5369138A(
+      \   SetAttribute_3278B22F( /*inout */size, (float)1);\n\t\t\t\t}\n\t\t\t\t{\n\t\t\t\t
+      \   SetAttribute_D5151644( /*inout */scaleX, (float)0.05);\n\t\t\t\t}\n\t\t\t\tAttributeFromCurve_5369138A(
       /*inout */scaleY, age, lifetime, Scale_d);\n\t\t\t\tColorOverLife_733E3(age,
       lifetime,  /*inout */color,  /*inout */alpha, gradient_e);\n\t\t\t\t\n\n\t\t\t\t\n\t\t\t\tif
       (!alive)\n\t\t\t\t\treturn o;\n\t\t\t\t\n\t\t\t\to.VFX_VARYING_UV.x = float(id
@@ -335,13 +335,13 @@ VisualEffectResource:
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 1
+        data[3]: 13
       - op: 1
         valueIndex: 1
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 1
+        data[3]: 14
       - op: 1
         valueIndex: 2
         data[0]: -1
@@ -353,37 +353,13 @@ VisualEffectResource:
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 1
+        data[3]: 3
-      - op: 26
-        valueIndex: 4
-        data[0]: 2
-        data[1]: 0
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 5
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 14
       - op: 1
         valueIndex: 6
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 1
+        data[3]: 3
-      - op: 1
-        valueIndex: 7
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 8
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
       - op: 1
         valueIndex: 9
         data[0]: -1
@@ -407,135 +383,39 @@ VisualEffectResource:
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 13
+        data[3]: 1
       - op: 1
         valueIndex: 13
         data[0]: -1
         data[1]: -1
         data[2]: -1
         data[3]: 1
-      - op: 1
+      - op: 6
         valueIndex: 14
         data[0]: -1
         data[1]: -1
         data[2]: -1
-        data[3]: 1
+        data[3]: -1
       - op: 1
         valueIndex: 15
         data[0]: -1
         data[1]: -1
         data[2]: -1
         data[3]: 1
-      - op: 26
-        valueIndex: 16
-        data[0]: 1
-        data[1]: 0
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 17
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 18
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 6
-        valueIndex: 19
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: -1
-      - op: 26
-        valueIndex: 20
-        data[0]: 17
-        data[1]: 0
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 21
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
       - op: 44
-        valueIndex: 22
+        valueIndex: 16
-        data[0]: 12
+        data[0]: 0
         data[1]: -1
         data[2]: -1
         data[3]: 0
       - op: 45
-        valueIndex: 26
+        valueIndex: 20
-        data[0]: 5
+        data[0]: 1
         data[1]: -1
         data[2]: -1
         data[3]: 0
       - op: 1
-        valueIndex: 27
+        valueIndex: 21
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 28
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 25
-        valueIndex: 29
-        data[0]: 4
-        data[1]: 10
-        data[2]: -1
-        data[3]: 1
-      - op: 25
-        valueIndex: 30
-        data[0]: 16
-        data[1]: 6
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 31
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 3
-        valueIndex: 32
-        data[0]: 9
-        data[1]: 8
-        data[2]: 7
-        data[3]: -1
-      - op: 1
-        valueIndex: 35
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 3
-        valueIndex: 36
-        data[0]: 11
-        data[1]: 18
-        data[2]: 3
-        data[3]: -1
-      - op: 3
-        valueIndex: 39
-        data[0]: 15
-        data[1]: 14
-        data[2]: 13
-        data[3]: -1
-      - op: 1
-        valueIndex: 42
-        data[0]: -1
-        data[1]: -1
-        data[2]: -1
-        data[3]: 1
-      - op: 1
-        valueIndex: 43
         data[0]: -1
         data[1]: -1
         data[2]: -1
@@ -545,52 +425,28 @@ VisualEffectResource:
     m_PropertySheet:
       m_Float:
         m_Array:
-        - m_ExpressionIndex: 0
-          m_Value: 0
-        - m_ExpressionIndex: 1
-          m_Value: 1
         - m_ExpressionIndex: 2
-          m_Value: 6.2831855
+          m_Value: 25000
-        - m_ExpressionIndex: 3
+        - m_ExpressionIndex: 5
-          m_Value: 5
+          m_Value: 0
         - m_ExpressionIndex: 6
           m_Value: 1
         - m_ExpressionIndex: 7
-          m_Value: 0
-        - m_ExpressionIndex: 8
-          m_Value: 0
-        - m_ExpressionIndex: 9
-          m_Value: 0
-        - m_ExpressionIndex: 10
           m_Value: 6.2831855
-        - m_ExpressionIndex: 11
+        - m_ExpressionIndex: 8
-          m_Value: 5
-        - m_ExpressionIndex: 13
-          m_Value: 0
-        - m_ExpressionIndex: 14
-          m_Value: 0
-        - m_ExpressionIndex: 15
-          m_Value: 0
-        - m_ExpressionIndex: 17
-          m_Value: 25000
-        - m_ExpressionIndex: 18
-          m_Value: 5
-        - m_ExpressionIndex: 21
-          m_Value: 0.05
-        - m_ExpressionIndex: 24
-          m_Value: 1
-        - m_ExpressionIndex: 25
-          m_Value: 9
-        - m_ExpressionIndex: 28
-          m_Value: 1
-        - m_ExpressionIndex: 30
-          m_Value: 0
-        - m_ExpressionIndex: 33
           m_Value: 4
+        - m_ExpressionIndex: 9
+          m_Value: 9
+        - m_ExpressionIndex: 11
+          m_Value: 0.05
       m_Vector2f:
         m_Array: []
       m_Vector3f:
-        m_Array: []
+        m_Array:
+        - m_ExpressionIndex: 3
+          m_Value: {x: 0, y: 0, z: 0}
+        - m_ExpressionIndex: 4
+          m_Value: {x: 5, y: 5, z: 5}
       m_Vector4f:
         m_Array: []
       m_Uint:
@@ -601,7 +457,7 @@ VisualEffectResource:
         m_Array: []
       m_AnimationCurve:
         m_Array:
-        - m_ExpressionIndex: 12
+        - m_ExpressionIndex: 0
           m_Value:
             serializedVersion: 2
             m_Curve:
@@ -646,7 +502,7 @@ VisualEffectResource:
             m_RotationOrder: 4
       m_Gradient:
         m_Array:
-        - m_ExpressionIndex: 5
+        - m_ExpressionIndex: 1
           m_Value:
             serializedVersion: 2
             key0: {r: 2, g: 1.9294118, b: 1.3490196, a: 0}
@@ -678,13 +534,13 @@ VisualEffectResource:
             m_NumAlphaKeys: 4
       m_NamedObject:
         m_Array:
-        - m_ExpressionIndex: 34
+        - m_ExpressionIndex: 14
           m_Value: {fileID: 2800000, guid: 49cb5aa34272b034d8b754c65d9cdbfa, type: 3}
       m_Bool:
         m_Array: []
     m_ExposedExpressions:
     - nameId: spread
-      index: 30
+      index: 5
     m_Buffers:
     - type: 1
       size: 780192
@@ -830,7 +686,7 @@ VisualEffectResource:
       buffers: []
       values:
       - nameId: Rate
-        index: 20
+        index: 2
       params: []
       processor: {fileID: 0}
       shaderSourceIndex: -1
@@ -851,9 +707,9 @@ VisualEffectResource:
       index: 1
     values:
     - nameId: bounds_center
-      index: 32
+      index: 3
     - nameId: bounds_size
-      index: 31
+      index: 4
     tasks:
     - type: 536870912
       buffers:
@@ -866,25 +722,13 @@ VisualEffectResource:
       - nameId: sourceAttributeBuffer
         index: 2
       values:
-      - nameId: ArcSphere_sphere_center_a
-        index: 29
-      - nameId: ArcSphere_sphere_radius_a
-        index: 28
-      - nameId: ArcSphere_arc_a
-        index: 26
       - nameId: Speed_b
-        index: 30
+        index: 5
-      - nameId: DirectionBlend_b
-        index: 27
-      - nameId: Min_c
-        index: 33
-      - nameId: Max_c
-        index: 25
       params:
       - nameId: bounds_center
-        index: 32
+        index: 3
       - nameId: bounds_size
-        index: 31
+        index: 4
       processor: {fileID: 0}
       shaderSourceIndex: 0
     - type: 805306368
@@ -895,7 +739,7 @@ VisualEffectResource:
         index: 3
       values:
       - nameId: deltaTime_a
-        index: 19
+        index: 10
       params: []
       processor: {fileID: 0}
       shaderSourceIndex: 1
@@ -904,16 +748,12 @@ VisualEffectResource:
       - nameId: attributeBuffer
         index: 0
       values:
-      - nameId: Size_b
-        index: 24
-      - nameId: Scale_c
-        index: 21
       - nameId: Scale_d
-        index: 22
+        index: 12
       - nameId: gradient_e
-        index: 23
+        index: 13
       - nameId: mainTexture
-        index: 34
+        index: 14
       params:
       - nameId: sortPriority
         index: 0

UnityProject/Assets/Materials/Ball.mat

@@ -8,14 +8,16 @@ Material:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_Name: Ball
-  m_Shader: {fileID: 4800000, guid: 6e4ae4064600d784cac1e41a9e6f2e59, type: 3}
+  m_Shader: {fileID: 4800000, guid: c4edd00ff2db5b24391a4fcb1762e459, type: 3}
   m_ShaderKeywords: 
   m_LightmapFlags: 4
   m_EnableInstancingVariants: 0
   m_DoubleSidedGI: 0
-  m_CustomRenderQueue: -1
+  m_CustomRenderQueue: 2000
   stringTagMap: {}
-  disabledShaderPasses: []
+  disabledShaderPasses:
+  - DistortionVectors
+  - MOTIONVECTORS
   m_SavedProperties:
     serializedVersion: 3
     m_TexEnvs:
@@ -103,6 +105,10 @@ Material:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
+    - _UnlitColorMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     m_Floats:
     - _AORemapMax: 1
     - _AORemapMin: 0
@@ -129,16 +135,17 @@ Material:
     - _DisplacementMode: 0
     - _DistortionBlendMode: 0
     - _DistortionBlurBlendMode: 0
-    - _DistortionBlurDstBlend: 0
+    - _DistortionBlurDstBlend: 1
     - _DistortionBlurRemapMax: 1
     - _DistortionBlurRemapMin: 0
     - _DistortionBlurScale: 1
-    - _DistortionBlurSrcBlend: 0
+    - _DistortionBlurSrcBlend: 1
     - _DistortionDepthTest: 1
-    - _DistortionDstBlend: 0
+    - _DistortionDstBlend: 1
     - _DistortionEnable: 0
+    - _DistortionOnly: 0
     - _DistortionScale: 1
-    - _DistortionSrcBlend: 0
+    - _DistortionSrcBlend: 1
     - _DistortionVectorBias: -1
     - _DistortionVectorScale: 2
     - _DoubleSidedEnable: 0
@@ -213,12 +220,12 @@ Material:
     - _UseShadowThreshold: 0
     - _ZTestDepthEqualForOpaque: 4
     - _ZTestGBuffer: 4
-    - _ZTestModeDistortion: 8
+    - _ZTestModeDistortion: 4
     - _ZWrite: 1
     m_Colors:
     - _BaseColor: {r: 1, g: 1, b: 1, a: 1}
     - _BaseColorMap_MipInfo: {r: 0, g: 0, b: 0, a: 0}
-    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _Color: {r: 0, g: 0, b: 0, a: 1}
     - _DoubleSidedConstants: {r: 1, g: 1, b: -1, a: 0}
     - _EmissionColor: {r: 1, g: 1, b: 1, a: 1}
     - _EmissiveColor: {r: 0, g: 0, b: 0, a: 1}
@@ -230,3 +237,4 @@ Material:
     - _UVDetailsMappingMask: {r: 1, g: 0, b: 0, a: 0}
     - _UVMappingMask: {r: 1, g: 0, b: 0, a: 0}
     - _UVMappingMaskEmissive: {r: 1, g: 0, b: 0, a: 0}
+    - _UnlitColor: {r: 1, g: 1, b: 1, a: 1}

UnityProject/Assets/Prefabs/Specttrum.prefab

@@ -0,0 +1,92 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!1 &6092934612178385049
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 2729856572329296726}
+  - component: {fileID: 8520952658703431917}
+  - component: {fileID: 2815943919782323988}
+  - component: {fileID: 2644534888280372563}
+  m_Layer: 0
+  m_Name: Specttrum
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &2729856572329296726
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 6092934612178385049}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_RootOrder: 0
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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UnityProject/Assets/Scenes/Examples/Waterfall/waterfall.unity.meta

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UnityProject/Assets/Scripts/Math.meta

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+  externalObjects: {}
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UnityProject/Assets/Scripts/Visualizer/CombMesh.cs

@@ -0,0 +1,85 @@
+using UnityEngine;
+
+namespace cylvester
+{
+    public interface ICombMesh
+    {
+        Vector3[] Vertices { get; }
+        int[] Indices { get; }
+        void Update(float[] spectrum);
+    }
+    
+    public class CombMesh : ICombMesh
+    {
+        public Vector3[] Vertices { get; }
+        public int[] Indices { get; }
+        private IPdArray fftArray_;
+        private int numberOfTeeth_;
+        
+        public CombMesh (int numberOfTeeth, float gap)
+        {
+            numberOfTeeth_ = numberOfTeeth;
+            Vertices = CreateVertices(gap);
+            Indices = CreateIndices();
+        }
+
+        public void Update(float[] spectrum)
+        {
+            var index = numberOfTeeth_ * 2;
+
+            for (var i = 0; i < numberOfTeeth_; ++i)
+            {
+                Vertices[index++].y = spectrum[i];
+                Vertices[index++].y = spectrum[i];
+            }
+        }
+
+        private Vector3[] CreateVertices(float gap)
+        {
+            var numVerticesPerLine = numberOfTeeth_ * 2;
+            var numTotalLineVertices = numberOfTeeth_ * 4;
+            var currentPos = -1f;
+            var step = 2f / (numberOfTeeth_ - 1);
+            var width = (1f - gap) * step;
+
+            var vertices = new Vector3[numTotalLineVertices];
+            for (var i = 0; i < numberOfTeeth_ - 1; ++i)
+            {
+                var index = i * 2;
+                vertices[index] = new Vector3(currentPos, 0, 0);
+                vertices[index+1] = new Vector3(currentPos + width , 0, 0);
+                
+                vertices[index+numVerticesPerLine] = new Vector3(currentPos, 1, 0);
+                vertices[index+1+numVerticesPerLine] = new Vector3(currentPos + width, 1, 0);
+
+                currentPos += step;
+            }
+
+            return vertices;
+        }
+
+        private int[] CreateIndices( )
+        {
+            var  numIndices = numberOfTeeth_ * 6;
+            
+            var offset = numberOfTeeth_ * 2;
+            var indices = new int[numIndices];
+            var index = 0;
+            for (var i = 0; i < numberOfTeeth_; ++i)
+            {
+                var onset = i * 2;
+                indices[index++] = 0 + onset;
+                indices[index++] = offset + onset;
+                indices[index++] = 1 + onset;
+
+                indices[index++] = offset + onset;
+                indices[index++] = offset + 1 + onset;
+                indices[index++] = 1 + onset;
+            }
+
+            return indices;
+        }
+
+
+    }
+}

UnityProject/Assets/Scripts/Visualizer/CombMesh.cs.meta

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+timeCreated: 1570103181

UnityProject/Assets/Scripts/Visualizer/SpectrumVisualizer.cs

@@ -0,0 +1,39 @@
+using UnityEngine;
+
+namespace cylvester
+{
+    
+    public interface ISpectrumVisualizer
+    {
+        float[] Spectrum { set; }
+    }
+    
+    [RequireComponent(typeof(MeshFilter))]
+    [RequireComponent(typeof(MeshRenderer))]
+    public class SpectrumVisualizer : MonoBehaviour, ISpectrumVisualizer
+    {
+        private MeshFilter meshFilter_;
+        private ICombMesh combMesh_;
+
+        private void Start()
+        {
+            combMesh_ = new CombMesh(512, 0.1f);
+
+            meshFilter_ = GetComponent<MeshFilter>();
+            meshFilter_.mesh = new Mesh
+            {
+                vertices = combMesh_.Vertices,
+                triangles = combMesh_.Indices
+            };
+        }
+
+        public float[] Spectrum
+        {
+            set
+            {
+                combMesh_.Update(value);
+                meshFilter_.mesh.vertices = combMesh_.Vertices;
+            }
+        }
+    }
+}

UnityProject/Assets/Scripts/Visualizer/SpectrumVisualizer.cs.meta

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UnityProject/Assets/Scripts/Visualizer/WaterfallVisualizer.cs

@@ -0,0 +1,45 @@
+using UnityEngine;
+
+namespace cylvester
+{
+    public class WaterfallVisualizer : MonoBehaviour
+    {
+        private const int historySize = 32;
+
+        [SerializeField] private PdBackend pdBackend;
+        [SerializeField] private GameObject spectrumPrefab;
+        [SerializeField, Range(1, 16)] private int channel = 1;
+
+        private IPdArray spectrumArray_;
+        private ISpectrumVisualizer[] visualizers_;
+        private Transform[] transforms_;
+        private int head_;
+        
+        private void Start()
+        {
+            visualizers_ = new ISpectrumVisualizer[historySize];
+            transforms_ = new Transform[historySize];
+
+            for (var i = 0; i < historySize; ++i)
+            {
+                var instance = Instantiate(spectrumPrefab, gameObject.transform, true);
+                transforms_[i] = instance.transform;
+                visualizers_[i] = instance.GetComponent<SpectrumVisualizer>();
+            }
+        }
+        
+        public void Update()
+        {
+            spectrumArray_ = pdBackend.fftArrayContainer[channel-1];
+            visualizers_[head_].Spectrum = spectrumArray_.Data;
+            head_++;
+            head_ %= historySize;
+            
+            for (var i = 0; i < historySize; ++i)
+            {
+                var index = (head_ + i) % historySize;
+                transforms_[index].localPosition = new Vector3(0, 0, 1f * i);
+            }
+        }
+    }
+}

UnityProject/Assets/Scripts/Visualizer/WaterfallVisualizer.cs.meta

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