Starting working on area lights.

2020-02-28 18:35:45 +00:00
parent 53f66b554b
commit c4b680789e
12 changed files with 509 additions and 32 deletions
--- a/tests/triangle_rendertest.cpp
+++ b/tests/triangle_rendertest.cpp
@@ -0,0 +1,116 @@
+/*
+ *  DoRayMe - a quick and dirty Raytracer
+ *  Render test for reflection in chapter 13.
+ *
+ *  Created by Manoël Trapier
+ *  Copyright (c) 2020 986-Studio.
+ *
+ */
+#include <world.h>
+#include <light.h>
+#include <plane.h>
+#include <colour.h>
+#include <canvas.h>
+#include <camera.h>
+#include <triangle.h>
+#include <group.h>
+#include <time.h>
+
+#include <transformation.h>
+
+double frand(double max)
+{
+    return max * (rand() / ((double) RAND_MAX));
+}
+
+int main()
+{
+    World w = World();
+
+    /* Add lights */
+    Light light1 = Light(POINT_LIGHT, Point(10000, 10000, -10000), Colour(0.25, 0.25, 0.25));
+    w.addLight(&light1);
+    Light light2 = Light(POINT_LIGHT, Point(-10000, 10000, -10000), Colour(0.25, 0.25, 0.25));
+    w.addLight(&light2);
+    Light light3 = Light(POINT_LIGHT, Point(10000, -10000, -10000), Colour(0.25, 0.25, 0.25));
+    w.addLight(&light3);
+    Light light4 = Light(POINT_LIGHT, Point(-10000, -10000, -10000), Colour(0.25, 0.25, 0.25));
+    w.addLight(&light4);
+
+    /* ----------------------------- */
+
+    /* White background */
+    Plane p = Plane();
+    p.setTransform(translation(0, 0, 100) *  rotationX(1.5708));
+    p.material.colour = Colour(1, 1, 1);
+    p.material.ambient = 1;
+    p.material.diffuse = 0;
+    p.material.specular = 0;
+    w.addObject(&p);
+
+    /* ----------------------------- */
+
+    Group g = Group();
+
+    srand(10); /* Force the seed to a known value */
+
+    int i;
+    Point p1, p2, p3;
+    /* Let's add a bunche of "random" triangles */
+    for (i = 0; i < 10; i++)
+    {
+        p1.x = 7-frand(14);
+        p1.y = 7-frand(14);
+        p1.z = 7-frand(14);
+        p2.x = 7-frand(14);
+        p2.y = 7-frand(14);
+        p2.z = 7-frand(14);
+        p3.x = 7-frand(14);
+        p3.y = 7-frand(14);
+        p3.z = 7-frand(14);
+
+        Triangle *tri = new Triangle(p1, p2, p3);
+        tri->material.colour.x = frand(1); // red
+        tri->material.colour.y = frand(1); // green
+        tri->material.colour.z = frand(1); // blue
+
+        //tri->material.refractiveIndex = frand(2);
+        //tri->material.transparency = frand(1);
+        //tri->material.shininess = frand(300);
+        //tri->material.specular = frand(1);
+        //tri->material.ambient = frand(1);
+        tri->material.reflective = frand(1);
+        //tri->material.diffuse = frand(1);
+
+
+        g.addObject(tri);
+    }
+
+    g.setTransform(rotationX(3.14));
+
+    w.addObject(&g);
+
+    /* ----------------------------- */
+
+    FILE *fpOut = fopen("triangles_world.json", "wt");
+    if (fpOut)
+    {
+        w.dumpMe(fpOut);
+        fclose(fpOut);
+    }
+
+    /* ----------------------------- */
+
+    /* Set the camera */
+    Camera camera = Camera(500, 500, M_PI/1.5);
+    camera.setTransform(viewTransform(Point(0, 0, -9),
+                                      Point(0, 0, 0),
+                                      Vector(0, 1, 0)));
+
+    /* Now render it */
+    Canvas image = camera.render(w, 5);
+
+    image.SaveAsPNG("triangle_rendertest.png");
+
+    return 0;
+}