Establish a well-structured modern C++ project architecture

Focus on code quality: Treat strict warnings as errors, memory checks with Sanitizers, Clang formatting and static analysis
Performance optimization: LTO, ccache

2 files changed, 45 insertions, 0 deletions

diff --git a/raytracing/apps/CMakeLists.txt b/raytracing/apps/CMakeLists.txt
new file mode 100644
index 0000000..af2d213
--- /dev/null
+++ b/raytracing/apps/CMakeLists.txt
@@ -0,0 +1,3 @@
+add_executable(RayTracer main.cc)
+
+target_link_libraries(RayTracer PRIVATE RayTracerCore)
\ No newline at end of file
diff --git a/raytracing/apps/main.cc b/raytracing/apps/main.cc
new file mode 100644
index 0000000..b0b3aa4
--- /dev/null
+++ b/raytracing/apps/main.cc
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2026 Richard
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include "color.h"
+#include "vec3.h"
+
+#include <iostream>
+
+int main()
+{
+  // Image
+
+  const int image_width = 256;
+  const int image_height = 256;
+
+  // Render
+
+  std::cout << "P3\n" << image_width << " " << image_height << "\n255\n";
+  for ( int j = 0; j < image_height; j++ ) {
+    std::clog << "\rScanlines remaining: " << ( image_height - j ) << ' ' << std::flush;
+    for ( int i = 0; i < image_width; i++ ) {
+      auto pixel_color = color(
+        static_cast<double>( i ) / ( image_width - 1 ), static_cast<double>( j ) / ( image_height - 1 ), 0 );
+      write_color( std::cout, pixel_color );
+    }
+  }
+  std::clog << "\rDone.                 \n";
+  return 0;
+}
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