refine scene

combine kinect spout texture
refine snowflake size

Unity_2018_Frozen/Assets/Frozen/Shader/SnowflakeParticleUpdate.compute

@@ -135,15 +135,22 @@ void CSMain(uint3 id : SV_DispatchThreadID)
 
 	// calculate model matrix
 	{
-		float size = uni.geomSize * lerp(1, pow(1.0f - saturate(p.life), 1.0f / 2.2f), any(uni.lifeDuration));
+		float size = lerp(1, pow(1.0f - saturate(p.life), 1.0f / 2.2f), any(uni.lifeDuration));
-		size *= lerp(0.5, 1.0, p.seed);
+
+		float life = saturate(p.life);
+		float th = 0.05f;
+		size = (life < th) ? (life / th) : ((1.0 - life) / (1.0 - th));
+		size = lerp(1, sin(size * 3.14159f * 0.5f), any(uni.lifeDuration));
+
+		size *= uni.geomSize * lerp(0.5, 1.0, p.seed);
 		if (idx > (uint)(uni.numRate * bufferCount) || (p.life < 0.0f && uni.lifeDuration > 0.1f))
 		{
 			size = 0.0f;
 		}
 
 		float4x4 mat = make_translation_matrix(p.position);
-		mat = mul(mat, quat_to_rotation_matrix(p.quat));
+		//mat = mul(mat, quat_to_rotation_matrix(p.quat));
+		mat = mul(mat, quat_to_rotation_matrix(float4(0, p.quat.y, 0, 1)));
 		mat = mul(mat, make_scaling_matrix(size));
 		p.model_matrix = mat;
 	}

Unity_2018_Frozen/Assets/KinectOpticalFlow/Kinect2MotionTexture.renderTexture

@@ -0,0 +1,33 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!84 &8400000
+RenderTexture:
+  m_ObjectHideFlags: 0
+  m_PrefabParentObject: {fileID: 0}
+  m_PrefabInternal: {fileID: 0}
+  m_Name: Kinect2MotionTexture
+  m_ImageContentsHash:
+    serializedVersion: 2
+    Hash: 00000000000000000000000000000000
+  m_ForcedFallbackFormat: 4
+  m_DownscaleFallback: 0
+  m_Width: 1024
+  m_Height: 424
+  m_AntiAliasing: 1
+  m_DepthFormat: 0
+  m_ColorFormat: 11
+  m_MipMap: 0
+  m_GenerateMips: 1
+  m_SRGB: 0
+  m_UseDynamicScale: 0
+  m_BindMS: 0
+  m_TextureSettings:
+    serializedVersion: 2
+    m_FilterMode: 1
+    m_Aniso: 0
+    m_MipBias: 0
+    m_WrapU: 1
+    m_WrapV: 1
+    m_WrapW: 1
+  m_Dimension: 2
+  m_VolumeDepth: 1

Unity_2018_Frozen/Assets/KinectOpticalFlow/Kinect2MotionTexture.renderTexture.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: f9c2cef894c9cc54f807a92207bf6eda
+timeCreated: 1508289246
+licenseType: Free
+NativeFormatImporter:
+  mainObjectFileID: 8400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Unity_2018_Frozen/Assets/KinectOpticalFlow/KinectOpticalFlow.cs

@@ -100,8 +100,9 @@ namespace UltraCombos
                 updateShader.SetVector("FluidDim", fluidSimulation.GridDim);
                 updateShader.SetInt("flipX", flipX ? 1 : 0);
 
-                updateShader.SetTexture(0, "PositionTexture", renderTextures[POSITION]);
+                //updateShader.SetTexture(0, "PositionTexture", renderTextures[POSITION]);
-                updateShader.SetTexture(0, "VelocityTexture", renderTextures[VELOCITY]);
+                //updateShader.SetTexture(0, "VelocityTexture", renderTextures[VELOCITY]);
+                updateShader.SetTexture(0, "MotionTexture", renderTextures[0]);
                 foreach (var buf in kinectBuffers)
                     updateShader.SetBuffer(0, buf.bufferName, buf.obj);
                 updateShader.SetBuffer(0, "KinectGridBuffer", kinect_grid_buffer);

Unity_2018_Frozen/Assets/KinectOpticalFlow/KinectUpdateShader.compute

@@ -1,4 +1,6 @@
-// Each #kernel tells which function to compile; you can have many kernels
+#define WIDTH 512
+#define HEIGHT 424
+
 #pragma kernel CSMain
 
 RWStructuredBuffer<float4> KinectPositionBuffer;
@@ -8,8 +10,9 @@ RWStructuredBuffer<float4> KinectGridBuffer;
 AppendStructuredBuffer<float4> HomePositionBuffer;
 AppendStructuredBuffer<float4> HomeVelocityBuffer;
 
-Texture2D<float4> PositionTexture;
+//Texture2D<float4> PositionTexture;
-Texture2D<float4> VelocityTexture;
+//Texture2D<float4> VelocityTexture;
+Texture2D<float4> MotionTexture;
 
 float4 ClipMin;
 float4 ClipMax;
@@ -22,9 +25,9 @@ int flipX;
 [numthreads(512,1,1)]
 void CSMain (uint3 id : SV_DispatchThreadID)
 {
-	uint2 tex_coord = uint2(id.x % 424, id.x / 424);
+	uint2 tex_coord = uint2(id.x % HEIGHT, id.x / HEIGHT);
 
-	float4 pos = float4(PositionTexture[tex_coord].xyz, 1);
+	float4 pos = float4(MotionTexture[tex_coord].xyz, 1);
 	//pos.y *= -1;
 	pos.z *= -1;
 	pos.x = lerp(pos.x, -pos.x, flipX);
@@ -34,7 +37,7 @@ void CSMain (uint3 id : SV_DispatchThreadID)
 	{
 		pos = mul(pos, ModelMatrix);
 
-		float4 vel = VelocityTexture[tex_coord];
+		float4 vel = MotionTexture[tex_coord + uint2(WIDTH, 0)];
 		//vel.y *= -1;
 		vel.z *= -1;
 		vel.x = lerp(vel.x, -vel.x, flipX);
@@ -50,8 +53,11 @@ void CSMain (uint3 id : SV_DispatchThreadID)
 			grid_index = (int)grid_pos.x + (int)grid_pos.y * FluidDim.x + (int)grid_pos.z * FluidDim.x * FluidDim.y;
 			KinectGridBuffer[grid_index] += float4(vel.xyz, 1);
 
-			if (pos_mag > 0.1f)
+			if (pos_mag > 0.1f)// && pos.y < 0.5f)
 			{
+				pos.y = 0.0f;
+				vel.xyz = float3(0, 0, 0);
+
 				HomePositionBuffer.Append(float4(pos.xyz, 0));
 				HomeVelocityBuffer.Append(float4(vel.xyz, 0));
 			}