diff --git a/INSTRUCTION.md b/INSTRUCTION.md
index 19d8e35..477eae9 100644
--- a/INSTRUCTION.md
+++ b/INSTRUCTION.md
@@ -140,7 +140,7 @@ It is recommended that you use Nsight. Nsight is shipped with CUDA. If you set u
     * If you have an older GPU, like GTX 9xx or older, then you may have to use *Start CUDA Debugging (Legacy)*.
 3. If prompted, select the *Connect Unsecurely* option to start Nsight.
 4. Exit the app.
-5. Now place a breakpoint at Line 79 of `kernel.cu` => `if (x <= width && y <= height) {`
+5. Now place a breakpoint at Line 30 of `kernel.cu` => `if (x <= width && y <= height) {`
 6. Restart the CUDA Debugging. This time, the breakpoint should be hit.
     * The *Autos* and *Locals* debugging tabs should appear at the bottom. (You can also open this from Debug -> Windows -> Autos/Locals)
     * Notice the values that are in the autos.
diff --git a/README.md b/README.md
index dd258af..63a8170 100644
--- a/README.md
+++ b/README.md
@@ -3,12 +3,22 @@ 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)
+* Zirui Zang
+  * [LinkedIn](https://www.linkedin.com/in/zirui-zang/)
+* Tested on: Windows 10, AMD Ryzen 7 3700X @ 3.60GHz 32GB, RTX2070 SUPER 8GB (Personal)
 
-### (TODO: Your README)
+### Screenshots
+Part 3.1.1: Modify the CUDA Project
+![Part 3.1.1](images/1.png)
 
-Include screenshots, analysis, etc. (Remember, this is public, so don't put
-anything here that you don't want to share with the world.)
+Part 3.1.2: Analyze
+![Part 3.1.2](images/5.png)
 
+Part 3.1.3: Nsight Debugging
+![Part 3.1.3](images/2.png)
+
+Part 3.2: WebGL
+![Part 3.2](images/3.png)
+
+Part 3.3: DXR
+![Part 3.3](images/4.png)
\ No newline at end of file
diff --git a/cuda-getting-started/src/main.cpp b/cuda-getting-started/src/main.cpp
index 886fd4c..0523421 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 = "Zirui Zang";
 
     if (init(argc, argv)) {
         mainLoop();
diff --git a/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl b/dxr-support/src/D3D12RaytracingHelloWorld/Raytracing.hlsl
index d817ca4..f050dc5 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(0.2, 0.3, 0.7);
     payload.color = float4(barycentrics, 1);
 }
 
diff --git a/images/1.png b/images/1.png
new file mode 100644
index 0000000..dc4bb6b
Binary files /dev/null and b/images/1.png differ
diff --git a/images/2.png b/images/2.png
new file mode 100644
index 0000000..77bbdb5
Binary files /dev/null and b/images/2.png differ
diff --git a/images/3.png b/images/3.png
new file mode 100644
index 0000000..a26a61c
Binary files /dev/null and b/images/3.png differ
diff --git a/images/4.png b/images/4.png
new file mode 100644
index 0000000..0926aa3
Binary files /dev/null and b/images/4.png differ
diff --git a/images/5.png b/images/5.png
new file mode 100644
index 0000000..b76acbc
Binary files /dev/null and b/images/5.png differ