6927 - working on a raytracing tutorial

https://raytracing.github.io/books/RayTracingInOneWeekend.html

1 files changed, 28 insertions, 0 deletions

diff --git a/apps/raytracing/1.cc.0 b/apps/raytracing/1.cc.0
new file mode 100644
index 00000000..13d5a1b6
--- /dev/null
+++ b/apps/raytracing/1.cc.0
@@ -0,0 +1,28 @@
+// https://raytracing.github.io/books/RayTracingInOneWeekend.html
+#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 = image_height-1; j >= 0; --j) {
+        for (int i = 0; i < image_width; ++i) {
+            auto r = double(i) / (image_width-1);
+            auto g = double(j) / (image_height-1);
+            auto b = 0.25;
+
+            int ir = static_cast<int>(255.999 * r);
+            int ig = static_cast<int>(255.999 * g);
+            int ib = static_cast<int>(255.999 * b);
+
+            std::cout << ir << ' ' << ig << ' ' << ib << '\n';
+        }
+    }
+}