diff --git a/README.md b/README.md
index dd258af..f9d236e 100644
--- a/README.md
+++ b/README.md
@@ -3,12 +3,32 @@ Project 0 Getting Started
 
 **University of Pennsylvania, CIS 565: GPU Programming and Architecture, Project 0**
 
-* (TODO) YOUR NAME HERE
-  * (TODO) [LinkedIn](), [personal website](), [twitter](), etc.
-* Tested on: (TODO) Windows 22, i7-2222 @ 2.22GHz 22GB, GTX 222 222MB (Moore 2222 Lab)
+* Mengxuan Huang
+  * [LinkedIn](https://www.linkedin.com/in/mengxuan-huang-52881624a).
+* Tested on: Windows 11, i9-13980HX @ 2.22GHz 64.0 GB, RTX4090-Laptop 16384MB
 
-### (TODO: Your README)
+## Part 3.1: CUDA
+8  -> Dodger Blue    #0080ff     rgb(  0, 128, 255)
 
-Include screenshots, analysis, etc. (Remember, this is public, so don't put
-anything here that you don't want to share with the world.)
+9  -> Blue           #0000ff     rgb(  0,   0, 255)
 
+![](images/Part3_1.png)
+
+## Part 3.1.2: Analyze
+
+![](images/Part3_1_2.png)
+
+## Part 3.1.3: Nsight Debugging
+**Random Number: 1111**
+
+BlockId(19, 0, 0) ThreadId:(7, 1, 0)
+
+![](images/Part3_1_3.png)
+
+## Part 3.2: WebGL
+**Support WebGL**
+![](images/Part3_2.png)
+
+## Part 3.3: DXR
+**GPU has full hardware support for DXR**
+![](images/Part3_3.png)
diff --git a/cuda-getting-started/src/main.cpp b/cuda-getting-started/src/main.cpp
index 886fd4c..c25fcdf 100644
--- a/cuda-getting-started/src/main.cpp
+++ b/cuda-getting-started/src/main.cpp
@@ -11,7 +11,7 @@
  */
 int main(int argc, char* argv[]) {
     // TODO: Change this line to use your name!
-    m_yourName = "TODO: YOUR NAME HERE";
+    m_yourName = "MENGXUAN HUANG";
 
     if (init(argc, argv)) {
         mainLoop();
diff --git a/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl b/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl
index d817ca4..b383dbf 100644
--- a/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl
+++ b/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl
@@ -69,7 +69,7 @@ void MyRaygenShader()
 [shader("closesthit")]
 void MyClosestHitShader(inout RayPayload payload, in MyAttributes attr)
 {
-    float3 barycentrics = float3(1 - attr.barycentrics.x - attr.barycentrics.y, attr.barycentrics.x, attr.barycentrics.y);
+    float3 barycentrics = float3(0.0f, 0.5f, 1.0f);// float3(1 - attr.barycentrics.x - attr.barycentrics.y, attr.barycentrics.x, attr.barycentrics.y);
     payload.color = float4(barycentrics, 1);
 }
 
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