cloudy-raytracer/ex6.cpp

#include <iostream>
#include <string>

#include "camera/perspectivecamera.h"

#include "scene/fastscene.h"

#include "primitive/sphere.h"

#include "renderer/simplerenderer.h"

#ifdef SUPERRENDERER_FOUND

#include "renderer/superrenderer.h"

#endif

#include "shader/materialshader.h"

#include "light/ambientlight.h"
#include "light/pointlight.h"
#include "light/spotlight.h"
#include "shader/flatshader.h"

void renderAliasingScene()
{
    FastScene scene;
    scene.setBackgroundColor(Color(0.5f, 0.5f, 1));

    // Set up the camera
    PerspectiveCamera camera;
    camera.setPosition(Vector3d(0, 0, 0));
    camera.setForwardDirection(normalized(Vector3d(1, 0, 0)));
    camera.setUpDirection(normalized(Vector3d(0.0f, 1.0f, 0.0f)));
    camera.setFovAngle(75.0f);

    auto orange = std::make_shared<FlatShader>(Color(1, 0.8f, 0.2f));
    auto sphere = std::make_shared<Sphere>(Vector3d(5, 0, 0), 3, orange);

    scene.add(sphere);

    // build the tree
    scene.buildTree();

    // Render the scene
    SimpleRenderer renderer;
    renderer.renderImage(scene, camera, 64, 64).save("aliasing.png");

#ifdef SUPERRENDERER_FOUND
    SuperRenderer sr;
    sr.setSuperSamplingFactor(4);
    sr.renderImage(scene, camera, 64, 64).save("aliasing_super.png");
#endif
}

int main()
{
    FastScene scene;
    scene.setEnvironmentMap(std::make_shared<Texture>("data/TychoSkymapII.t5_04096x02048.png"));

    // Set up the camera
    PerspectiveCamera camera;
    camera.setPosition(Vector3d(0.0f, -0.2f, 0.0f));
    camera.setForwardDirection(normalized(Vector3d(-1.0f, -0.15f, 0.6f)));
    camera.setUpDirection(normalized(Vector3d(0.0f, -1.0f, 0.0f)));
    camera.setFovAngle(90.0f);

    // Add the earth
    auto earthDiffuse = std::make_shared<Texture>("data/earth_diffuse.ppm");
    auto earthSpecular = std::make_shared<Texture>("data/earth_specular.ppm");
    auto earthNormal = std::make_shared<Texture>("data/earth_normal.ppm");
    auto earthClouds = std::make_shared<Texture>("data/earth_clouds.ppm");
    auto earthCloudShader = std::make_shared<MaterialShader>();
    earthCloudShader->setDiffuseMap(earthClouds);
    earthCloudShader->setAlphaMap(earthClouds);
    earthCloudShader->setDiffuseCoefficient(0.9f);
    earthCloudShader->setSpecularCoefficient(0.1f);
    auto earthShader = std::make_shared<MaterialShader>();
    earthShader->setDiffuseMap(earthDiffuse);
    earthShader->setDiffuseCoefficient(0.5f);
    earthShader->setSpecularMap(earthSpecular);
    earthShader->setSpecularCoefficient(0.5f);
    earthShader->setShininessExponent(15.0f);
    earthShader->setNormalMap(earthNormal);
    scene.add(std::make_shared<Sphere>(Vector3d(-50.0f, 0.0f, 60.0f), 20.0f, earthShader));
    scene.add(std::make_shared<Sphere>(Vector3d(-50.0f, 0.0f, 60.0f), 20.05f, earthCloudShader));

    // Add the spaceship
    auto spaceshipDiffuse = std::make_shared<Texture>("data/space_frigate_6_diffuse.ppm");
    auto spaceshipSpecular = std::make_shared<Texture>("data/space_frigate_6_specular.ppm");
    auto spaceshipNormal = std::make_shared<Texture>("data/space_frigate_6_normal.ppm");
    auto spaceshipReflection = std::make_shared<Texture>("data/space_frigate_6_specular.ppm");
    auto spaceshipShader = std::make_shared<MaterialShader>();
    spaceshipShader->setDiffuseMap(spaceshipDiffuse);
    spaceshipShader->setDiffuseCoefficient(0.75f);
    spaceshipShader->setSpecularMap(spaceshipSpecular);
    spaceshipShader->setNormalMap(spaceshipNormal);
    spaceshipShader->setNormalCoefficient(0.8f);
    spaceshipShader->setSpecularCoefficient(0.25f);
    spaceshipShader->setShininessExponent(30.0f);
    spaceshipShader->setReflectionMap(spaceshipReflection);
    spaceshipShader->setReflectance(0.75f);

    scene.addObj("data/space_frigate_6.obj", Vector3d(-1.0f, 1.0f, 1.0f) / 20.0f, Vector3d(-1.3f, -0.3f, 0.7f),
                 spaceshipShader);

    // Add lights
    scene.add(std::make_shared<PointLight>(Vector3d(0.0f, 0.0f, 30.0f), 1000.0f));
    scene.add(std::make_shared<AmbientLight>(0.3f));

    // build the tree
    scene.buildTree();

    // Render the scene
    SimpleRenderer renderer;
    renderer.renderImage(scene, camera, 1024, 768).save("result.png");

#ifdef SUPERRENDERER_FOUND
    SuperRenderer sr;
    sr.setSuperSamplingFactor(4);
    sr.renderImage(scene, camera, 1024, 768).save("result_super.png");
#endif

    renderAliasingScene();

    return 0;
}