[FEAT] Add truncated cylinders

apps/chapter_13.cpp

@@ -0,0 +1,102 @@
+/*!
+ * chapter_13.cpp
+ *
+ * Copyright (c) 2024, NADAL Jean-Baptiste. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * @Author:  NADAL Jean-Baptiste
+ * @Date: 18/03/2024
+ *
+ */
+
+// This is an independent project of an individual developer. Dear PVS-Studio, please check it.
+// PVS-Studio Static Code Analyzer for C, C++, C#, and Java: http://www.viva64.com
+
+// Coordinate came from:
+// https://github.com/sraaphorst/raytracer-kotlin/blob/main/src/main/kotlin/apps/ch13_world.kt
+
+#include <chrono>
+#include <cstdio>
+
+#include <raytracing.h>
+
+/* ------------------------------------------------------------------------- */
+
+using namespace Raytracer;
+using namespace std;
+
+/* ------------------------------------------------------------------------- */
+
+int main(void)
+{
+    World the_world;
+    Camera the_camera;
+    Canvas the_canvas;
+    Plane *the_floor;
+    Cylinder *the_cylinder;
+    chrono::time_point<chrono::high_resolution_clock> the_start, the_end;
+
+    printf("Chapter 13 example.\n");
+
+    // Floor is an extremely flattened sphere with a matte texture.
+    the_floor = new Plane();
+    the_floor->set_transform(Matrix::rotation_y(0.3) *
+                             Matrix::scaling(0.25, 0.25, 0.25));
+    Material &the_floor_material = the_floor->material();
+    the_floor_material.set_pattern(new CheckersPattern(Color(0.5, 0.5, 0.5), Color(0.75, 0.75, 0.75)));
+    the_floor_material.set_ambient(0.9);
+    the_floor_material.set_diffuse(0.9);
+    the_floor_material.set_specular(0);
+    the_world.add_object(the_floor);
+
+    // Cylinder
+    the_cylinder = new Cylinder();
+    the_cylinder->set_minimum(0);
+    the_cylinder->set_maximum(0.75);
+    the_cylinder->set_transform(Matrix::translation(-1, 0, 1) *
+                                Matrix::scaling(0.5, 1, 0.5));
+    Material &the_cylinder_material = the_cylinder->material();
+    the_cylinder_material.set_color(Color(0, 0, 0.6));
+    the_cylinder_material.set_diffuse(0.1);
+    the_cylinder_material.set_specular(0.9);
+    the_cylinder_material.set_shininess(300);
+    the_cylinder_material.set_reflective(0.9);
+    the_world.add_object(the_cylinder);
+
+    // The Light source is white, shining from above and to the left
+    the_world.set_light(PointLight(Tuple::Point(1, 6.9, -4.9), Color(1, 1, 1)));
+
+    // Configure the camera.
+    // the_camera = Camera(100, 50, std::numbers::pi / 10);
+    the_camera = Camera(320, 200, std::numbers::pi / 10);
+    // the_camera = Camera(640, 480, std::numbers::pi / 10);
+    the_camera.show_progress_bar();
+    the_camera.set_transform(
+        Matrix::view_transform(Tuple::Point(8, 3.5, -9), Tuple::Point(0, 0.3, 0), Tuple::Vector(0, 1, 0)));
+
+    the_start = chrono::high_resolution_clock::now();
+    the_camera.show_progress_bar();
+    the_canvas = the_camera.render(the_world);
+    the_end = chrono::high_resolution_clock::now();
+
+    the_canvas.save_to_file("chapter13.ppm");
+
+    chrono::duration<double> the_elapsed_time = the_end - the_start;
+    printf("Execution Time: %f secondes\n", the_elapsed_time.count());
+
+    return 0;
+}