Trying to implement image mapping.

Something not working yet.

tests/uvmap_earth.cpp

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+/*
+ *  DoRayMe - a quick and dirty Raytracer
+ *  Render test for chapter 10
+ *
+ *  Created by Manoël Trapier
+ *  Copyright (c) 2020 986-Studio.
+ *
+ */
+#include <world.h>
+#include <light.h>
+#include <sphere.h>
+#include <plane.h>
+#include <cylinder.h>
+
+#include <material.h>
+#include <colour.h>
+#include <canvas.h>
+#include <camera.h>
+
+#include <pattern.h>
+#include <texturemap.h>
+#include <uv_image.h>
+
+#include <transformation.h>
+
+int main()
+{
+    World w = World();
+
+    Light light = Light(POINT_LIGHT, Point(-100, 100, -100), Colour(1, 1, 1));
+    w.addLight(&light);
+
+    Plane p = Plane();
+    p.material.colour = Colour(1, 1, 1);
+    p.material.diffuse = 0.1;
+    p.material.specular = 0;
+    p.material.ambient = 0;
+    p.material.reflective = 0.4;
+    w.addObject(&p);
+
+    Cylinder cyl = Cylinder();
+    cyl.minCap = 0;
+    cyl.maxCap = 0.1;
+    cyl.isClosed = true;
+    cyl.material.colour = Colour(1, 1, 1);
+    cyl.material.diffuse = 0.2;
+    cyl.material.specular = 0;
+    cyl.material.ambient = 0;
+    cyl.material.reflective = 0.1;
+    w.addObject(&cyl);
+
+    Sphere sp = Sphere();
+
+    UVImage sphereTexture = UVImage("earthmap1k.png");
+    TextureMap tm = TextureMap(SPHERICAL_MAP, &sphereTexture);
+    sp.setTransform(translation(0, 1.1, 0) * rotationY(1.9));
+    sp.material.pattern = &tm;
+    sp.material.ambient = 0.1;
+    sp.material.specular = 0.1;
+    sp.material.shininess = 10;
+    sp.material.diffuse = 0.9;
+    w.addObject(&sp);
+
+    /* Set the camera */
+    Camera camera = Camera(800, 400, 0.8);
+    camera.setTransform(viewTransform(Point(1, 2, -10),
+                                      Point(0, 1.1, 0),
+                                      Vector(0, 1, 0)));
+
+    /* Now render it */
+    Canvas image = camera.render(w);
+
+    image.SaveAsPNG("uvmap_earth.png");
+
+    return 0;
+}