114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
/*
|
|
* DoRayMe - a quick and dirty Raytracer
|
|
* World unit tests
|
|
*
|
|
* Created by Manoël Trapier
|
|
* Copyright (c) 2020 986-Studio.
|
|
*
|
|
*/
|
|
#include <world.h>
|
|
#include <light.h>
|
|
#include <sphere.h>
|
|
#include <material.h>
|
|
#include <transformation.h>
|
|
#include <worldbuilder.h>
|
|
#include <math.h>
|
|
#include <gtest/gtest.h>
|
|
|
|
|
|
TEST(WorldTest, Creating_a_world)
|
|
{
|
|
World w;
|
|
|
|
ASSERT_EQ(w.lightCount, 0);
|
|
ASSERT_EQ(w.objectCount, 0);
|
|
}
|
|
|
|
TEST(WorldTest, The_default_world)
|
|
{
|
|
World w = DefaultWorld();
|
|
|
|
Light l = Light(POINT_LIGHT, Point(-10, 10, -10), Colour(1, 1, 1));
|
|
Sphere s1 = Sphere();
|
|
Sphere s2 = Sphere();
|
|
Material s1Mat = Material();
|
|
s1Mat.colour = Colour(0.8, 1.0, 0.6);
|
|
s1Mat.diffuse = 0.7;
|
|
s1Mat.specular = 0.2;
|
|
s1.setMaterial(s1Mat);
|
|
|
|
s2.setTransform(scaling(0.5, 0.5,0.5));
|
|
|
|
ASSERT_TRUE(w.lightIsIn(l));
|
|
ASSERT_TRUE(w.objectIsIn(s1));
|
|
ASSERT_TRUE(w.objectIsIn(s2));
|
|
};
|
|
|
|
TEST(WorldTest, Intersect_a_world_with_a_ray)
|
|
{
|
|
World w = DefaultWorld();
|
|
Ray r = Ray(Point(0, 0, -5), Vector(0, 0, 1));
|
|
|
|
Intersect xs = w.intersect(r);
|
|
|
|
ASSERT_EQ(xs.count(), 4);
|
|
ASSERT_EQ(xs[0].t, 4);
|
|
ASSERT_EQ(xs[1].t, 4.5);
|
|
ASSERT_EQ(xs[2].t, 5.5);
|
|
ASSERT_EQ(xs[3].t, 6);
|
|
}
|
|
|
|
TEST(WorldTest, Shading_an_intersection)
|
|
{
|
|
World w = DefaultWorld();
|
|
Ray r = Ray(Point(0, 0, -5), Vector(0, 0, 1));
|
|
Shape *s = w.getObject(0);
|
|
Intersection i = Intersection(4, s);
|
|
Computation comps = i.prepareComputation(r);
|
|
Tuple c = w.shadeHit(comps);
|
|
|
|
/* Temporary lower the precision */
|
|
set_equal_precision(0.00001);
|
|
|
|
ASSERT_EQ(c, Colour(0.38066, 0.47583, 0.2855));
|
|
|
|
set_equal_precision(FLT_EPSILON);
|
|
}
|
|
|
|
TEST(WorldTest, The_when_ray_miss)
|
|
{
|
|
World w = DefaultWorld();
|
|
Ray r = Ray(Point(0, 0, -5), Vector(0, 1, 0));
|
|
Tuple c = w.colourAt(r);
|
|
|
|
ASSERT_EQ(c, Colour(0, 0, 0));
|
|
}
|
|
|
|
TEST(WorldTest, The_when_ray_hit)
|
|
{
|
|
World w = DefaultWorld();
|
|
Ray r = Ray(Point(0, 0, -5), Vector(0, 0, 1));
|
|
Tuple c = w.colourAt(r);
|
|
|
|
/* Temporary lower the precision */
|
|
set_equal_precision(0.00001);
|
|
|
|
ASSERT_EQ(c, Colour(0.38066, 0.47583, 0.2855));
|
|
|
|
set_equal_precision(FLT_EPSILON);
|
|
}
|
|
|
|
TEST(WorldTest, The_colour_with_an_intersection_behind_the_ray)
|
|
{
|
|
World w = DefaultWorld();
|
|
Shape *outer = w.getObject(0);
|
|
outer->material.ambient = 1;
|
|
Shape *inner = w.getObject(1);
|
|
inner->material.ambient = 1;
|
|
|
|
Ray r = Ray(Point(0, 0, 0.75), Vector(0, 0, -1));
|
|
|
|
Tuple c = w.colourAt(r);
|
|
|
|
ASSERT_EQ(c, inner->material.colour);
|
|
} |