cloudy-raytracer/beautifulScene.cpp

#include <scene/simplescene.h>

#include <camera/perspectivecamera.h>
#include <shader/materialshader.h>
#include <primitive/sphere.h>
#include <light/ambientlight.h>
#include <light/pointlight.h>
#include <renderer/depthoffieldrenderer.h>
#include <post_processing/bloom.h>
#include <primitive/objmodel.h>
#include <shader/lambertshader.h>
#include <renderer/simplerenderer.h>
#include <shader/brdfshader.h>
#include <thread>
#include <conio.h>
#include <shader/cooktorranceshader.h>
#include <shader/phongshader.h>
#include <primitive/infiniteplane.h>
#include <light/spotlight.h>
#include <shader/cloudshader.h>
#include <shader/mirrorshader.h>
#include <shader/refractionshader.h>
#include <primitive/triangle.h>
#include <shader/simpleshadowshader.h>
#include <light/sunlight.h>
#include "scene/fastscene.h"
#include "shader/toneshader.h"


int main() {
    SimpleScene scene;
    scene.setEnvironmentMap(std::make_shared<Texture>("../data/clear_blue_sky.jpg"));
    // scene.setEnvironmentMap(std::make_shared<Texture>("../data/TychoSkymapII.t5_04096x02048.png"));
    scene.setBackgroundColor(Color(0.1, 0.1, 0.1));

    // Light
    auto mainLight = std::make_shared<SunLight>(Vector3d(-6.0f, -0.5f, 2.0f), 2.0f,
                                                Color(1, 1, 1));//Color(1, 0.79f, 0.62f));
    scene.add(mainLight);
    scene.add(std::make_shared<AmbientLight>(0.1f));

    // Set up the camera
    PerspectiveCamera camera;
    camera.setFovAngle(70.0f);
    camera.setPosition(Vector3d(0.0f, 1.0f, 0.0f));
    camera.setForwardDirection(Vector3d(1.0f, 0.0f, 0.0f));
    // Final camera Position
//    camera.setPosition(Vector3d(0.0f, -4.9f, 0.0f));
//    camera.setForwardDirection(Vector3d(1.0f, 0.2f, 0.0f));
    camera.setUpDirection(Vector3d(0.0f, 1.0f, 0.0f));

    // Shader
    auto gold = std::make_shared<CookTorranceShader>(Color(0.83f, 0.69f, 0.22f), Color(1.0f, 0.08f, 0.58f), 1.2f, 0.2f);
    auto green = std::make_shared<ToneShader>(mainLight, Color(1, 1, 1), Color(0.1f, 0.6f, 0.1f), Color(0,0,0));
    auto orange = std::make_shared<PhongShader>(Color(1.0f, 0.64f, 0.0f), 1.0f, Color(1.0f, 1.0f, 1.0f), 1.0f, 25.0f);
    auto white = std::make_shared<SimpleShadowShader>(Color(0.9f, 0.9f, 0.9f));
    auto fiona_color = std::make_shared<PhongShader>(Color(0.4f, 1.0f, 0.f), 1.0f, Color(1.0f, 1.0f, 1.0f), 1.0f,
                                                     25.0f);
    auto mirror = std::make_shared<MirrorShader>();
    auto glass = std::make_shared<RefractionShader>(1.31f, 1.0f);



    // BRDF
    auto gold_metallic_paint2 = std::make_shared<BrdfShader>("../data/BRDF/gold-metallic-paint2.binary",
                                                             Color(2.0f, 5.0f, 7.0f));
    auto alumina_oxide = std::make_shared<BrdfShader>("../data/BRDF/alumina-oxide.binary", Color(7.0f, 0.0f, 5.0f));
    auto chrome_steel = std::make_shared<BrdfShader>("../data/BRDF/chrome-steel.binary", Color(0.0f, 7.0f, 2.0f));


    // Make Objects
    auto house = std::make_shared<ObjModel>(alumina_oxide);
    auto temple = std::make_shared<ObjModel>(gold_metallic_paint2);

    house->loadObj("../data/NewObjects/house/objBuilding.obj", Vector3d(1.0f, 1.0f, 1.0f),
                   Vector3d(20.0f, -6.0f, 10.0f));
    temple->loadObj("../data/NewObjects/Random/Temple.obj", Vector3d(0.1f, 0.1f, 0.1f), Vector3d(30.0f, -6.0f, -10.0f));


    // Setup ground and sky
    // Add floor
    scene.add(std::make_shared<InfinitePlane>(Vector3d(0.0f, -5.0f, 0.0f), Vector3d(0.0f, 1.0f, 0.0f), white));



    // Add clouds

    auto cloudSettings = CloudSettings();
    cloudSettings.seed = 42;
    cloudSettings.lightAbsorptionTowardsLight = 0.6f;
    cloudSettings.lightAbsorptionThroughCloud = 1.0f;
    cloudSettings.densityOffset = -0.65f;
    auto cloudShader = std::make_shared<CloudShader>(cloudSettings);
    scene.add(std::make_shared<Box>(Vector3d(30.0f, 10.0f, 0.0f), Vector3d(75.0f, 10.0f, 75.0f), cloudShader));




    // Insert Objects
    //scene.add(house);
    //scene.add(temple);
    //scene.add(std::make_shared<Sphere>(Vector3d(3.0f, -2.0f, -5.0f), 0.5f, mirror));
    scene.add(std::make_shared<Sphere>(Vector3d(6.0f, -2.0f, -1.0f), 5.0f, green));

    // Render
    SimpleRenderer rendererTest;
    int width = 512;
    Texture imageSceneToTest = rendererTest.renderImage(scene, camera, width, width / 16 * 9);

    // initialize renderer: aperture = lens thickness, secondaryRayCount = how many rays per pixel are created
    // focalLength = the area which is in focus
    // DOFRenderer renderer(0.2, 100, 70.0f);

    // Use DOFRenderer to raytrace !!! careful more pixels lead to insane rendering times
    // Texture image = renderer.renderImage(scene, camera, 1920, 1080);

    // Use post-processing Bloom effect
    /*
    Bloom bloomEffect = Bloom(image.getImage());
    Texture imageWithBloom = image;
    imageWithBloom.setTexture(bloomEffect.bloom(0.55f, 5, 10.0f, 0.06f));
     */

    // save images
    imageSceneToTest.save("result1.png");
//     image.save("result.png");
//     image.save("resultWithBloom");

    CImg<float> image = imageSceneToTest.getImage();
    CImg<unsigned char> img_8bit(image.width(), image.height(), 1, 3);
    cimg_forXYC(image, x, y, c) {
                img_8bit(x, y, c) = (unsigned char) std::round(image(x, y, c) * 255);
            }

    CImgDisplay disp(img_8bit, "My Rendered Image", 0, false, false);
    while (!disp.is_closed()) {
        disp.wait();
        disp.display(img_8bit);
        if (disp.is_resized()) {
            disp.resize();
        }
    }

    return 0;
}