CIS-566-Fall-2022 · vivienldy · Oct 18, 2022 · Oct 18, 2022 · Oct 18, 2022 · Oct 18, 2022
diff --git a/README.md b/README.md
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 # Homework 4: L-systems
 
+## Demo (Used Houdini)
+<img width="800" height="480" src="result.gif">
+<img width="800" height="500" src="result.png">
+
+For this project, I was trying to use Houdini Lsystem to create the whomping willow from Harry Potter.
+
+## Tree
+### Lsystem 
+<img width="1000" height="120" src="rules.png">
+<img width="1000" height="50" src="rules2.png">
+<img width="350" height="400" src="treelsystem.png">
+
+I used two lsystem to create the two main trunks seperatly and merged them together. 
+
+
+### Noise
+<img width="350" height="400" src="treewithoutnoise.png">    <img width="350" height="400" src="treewithnoise.png">
+
+I used Attribute Wrangle to run over points to add some sin noise to create the details of the trunk, and scale down the noise according to the points' y value. So the top of the trunk looks thiner than the bottom.
+
+### Animation
+<img width="430" height="200" src="noise.png">
+<img width="550" height="200" src="treetwistvalue.png">
+To animate the tree, I first add a sin($F) to the lsystem's Random Scale value, to create the random movement of the willow. I then use the bend node to twist the tree. To make the tree only twists during the certain time, I edit the twist value of the node to make sure the tree will twist from the start position and end at the start position as well.
+
+### Falling leaf
+<img width="800" height="500" src="fallingleaf.png">
+For the falling leaf, I used scatter point node to scatter point from the tree leaf group. And use Attribute Wrangle to change the position of the leaf accroding to @Time.
+
+### Churros Bloopers
+<img width="600" height="300" src="blooper.jpeg">
+
+# Homework 4: L-systems
 For this assignment, you will design a set of formal grammar rules to create
 a plant life using an L-system program. Once again, you will work from a
 TypeScript / WebGL 2.0 base code like the one you used in homework 0. You will

diff --git a/blooper.jpeg b/blooper.jpeg
diff --git a/blooper2.jpeg b/blooper2.jpeg
diff --git a/fallingleaf.png b/fallingleaf.png
diff --git a/fallingleafposition.png b/fallingleafposition.png
diff --git a/noise.png b/noise.png
diff --git a/noisevex.png b/noisevex.png
diff --git a/reference.jpeg b/reference.jpeg
diff --git a/result.gif b/result.gif
diff --git a/result.mp4 b/result.mp4
diff --git a/result.png b/result.png
diff --git a/rules.png b/rules.png
diff --git a/rules2.png b/rules2.png
diff --git a/treelsystem.png b/treelsystem.png
diff --git a/treetwist.png b/treetwist.png
diff --git a/treetwistvalue.png b/treetwistvalue.png
diff --git a/treewithnoise.png b/treewithnoise.png
diff --git a/treewithoutnoise.png b/treewithoutnoise.png