diff --git a/Engine/Graphics/3DRenderer.cpp b/Engine/Graphics/3DRenderer.cpp
index 83a228f..c8dabb5 100644
--- a/Engine/Graphics/3DRenderer.cpp
+++ b/Engine/Graphics/3DRenderer.cpp
@@ -6,7 +6,7 @@
 
 // Rendering pipeline:
 //   model matrix (Object SRT) -> view matrix (camera matrix inverted) -> proj matrix -> clipping -> perspective divide -> viewport transformation -> Rasterizer (draw pixels inside projected triangles on 2D screen)
-//   object coordinate -> world coordinate -> camera coordinate -> clip/screen coordinate
+//   object space -> world space -> camera space -> homogeneous clip space -> NDC space -> raster space
 //
 // Rasterizer inputs elements:
 //   - texture-buffer (2D array of pixels color value)
@@ -16,11 +16,14 @@
 // Refs:
 //   * https://en.wikipedia.org/wiki/3D_projection
 //   * https://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation/overview-rasterization-algorithm.html
+//   * https://ktstephano.github.io/rendering/stratusgfx/aabbs
+//   * https://en.wikipedia.org/wiki/Clipping_(computer_graphics)
+//   * https://www.coranac.com/tonc/text/mode7.htm
 
 Graphic3DRenderer::Graphic3DRenderer() {
     if (mMainCamera == nullptr) {
         mMainCamera = std::make_unique<Camera>();
-        mMainCamera->SetPosition(0.0f, 3.0f, -20.0f);
+        mMainCamera->SetPosition(0.0f, 1.5f, -8.0f);
         mMainCamera->SetFrustrum(90.0f, 1280.f/324.f, 1.0f, 100.f);
         mMainCamera->UpdateCamView();
     }
@@ -28,17 +31,17 @@ Graphic3DRenderer::Graphic3DRenderer() {
     // Fill world object list to render
     mRenderList.clear();
     mRenderList.push_back(std::make_shared<ObjectDbgCube>());
-    mRenderList.back()->SetPosition(0.f, 0.f, 50.f);
-    mRenderList.back()->SetScale(10.0f);
+    mRenderList.back()->SetPosition(0.f, 0.f, 15.f);
+    mRenderList.back()->SetScale(2.0f);
     mRenderList.push_back(std::make_shared<ObjectDbgCube>());
-    mRenderList.back()->SetPosition(24.f, 5.f, 12.f);
-    mRenderList.back()->SetScale(10.0f);
+    mRenderList.back()->SetPosition(6.f, 2.f, 2.f);
+    mRenderList.back()->SetScale(2.0f);
     mRenderList.push_back(std::make_shared<ObjectDbgCube>());
-    mRenderList.back()->SetPosition(-31.f, 16.f, 24.f);
-    mRenderList.back()->SetScale(10.0f);
+    mRenderList.back()->SetPosition(-8.f, 5.f, 10.f);
+    mRenderList.back()->SetScale(2.0f);
     mRenderList.push_back(std::make_shared<Tank>());
     mRenderList.back()->SetPosition(0.f, 0.f, 0.f);
-    mRenderList.back()->SetScale(25.0f);
+    mRenderList.back()->SetScale(5.0f);
 }
 
 Graphic3DRenderer::~Graphic3DRenderer() {}