scene.h

#pragma once
#include "vector.h"
#include "shapes.h"
#include "background.h"
#include <vector>

class Light;

enum ToneMapType {
    TONEMAP_NONE,
    TONEMAP_REINHARD,
    TONEMAP_ACES
};

class Scene {
public:
    std::vector<Shape3D*> shapes;
    std::vector<Light*> lights;
    int width = 800;
    int height = 600;
    int samples_per_pixel = 500;
    int max_bounces = 10;
    int fov = 70; // Degrees
    Vector3 camera_position = Vector3(0, 0, 0);
    Vector3 camera_cframe[3] = {
        Vector3(1, 0, 0),
        Vector3(0, 1, 0),
        Vector3(0, 0, -1)
    }; // Right, Up, Forward
    ToneMapType tone_map = TONEMAP_REINHARD;
    Background* background = nullptr;

    Scene() {}
    ~Scene() {
        for (auto shape : shapes) {
            delete shape;
        }
    }

    void addShape(Shape3D* shape) {
        shapes.push_back(shape);
    }

    void addLight(Light* light) {
        lights.push_back(light);
    }

    void rotateCamera(Vector3 euler);
    void setCameraRotation(Vector3 euler);
    CollisionInfo intersectRay(Vector3& origin, Vector3& direction, Vector3& inv_dir) const;
    std::vector<Vector3> render();
    std::vector<Vector3> renderThreaded(int num_threads, int tile_size = 8);
    std::vector<CollisionInfo> renderCollisionInfo();
    void renderDebug(std::vector<Vector3>* normals = nullptr, std::vector<double>* depth = nullptr, std::vector<Vector3>* albedo = nullptr);
private:
    void renderTile(int start_x, int start_y, int tile_width, int tile_height, std::vector<Vector3>& framebuffer);
};