Files
dorayme/tests/triangle_rendertest.cpp
2020-02-28 18:35:45 +00:00

116 lines
2.9 KiB
C++

/*
* 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;
}