MiniRT

MiniRT

Design

Scene Hierarchy

Scene
│
├── Ambient (unique)
│     ├─ ratio: float
│     └─ color: Color
│
├── Camera (unique)
│     ├─ position: Vector3
│     ├─ orientation: Vector3 (normalized)
│     └─ fov: float
│
├── Lights (list, one or more)
│     └─ Light
│           ├─ position: Vector3
│           ├─ brightness: float
│           └─ color: Color
│
└── Objects (list, one or more)
      └─ Object (versatile template)
            ├─ type: enum {SPHERE, PLANE, CYLINDER, ...}
            ├─ data: void* → points to Sphere/Plane/Cylinder
            └─ function pointers (optional):
                  • intersect(ray, obj)
                  • normal_at(point, obj)

Shared Building Blocks

Vector3
 ├─ x: float
 ├─ y: float
 └─ z: float

Color
 ├─ r: float (0–1 normalized)
 ├─ g: float
 └─ b: float

Specific Objects

Sphere
 ├─ center: Vector3
 ├─ diameter: float
 └─ color: Color

Plane
 ├─ point: Vector3
 ├─ normal: Vector3 (normalized)
 └─ color: Color

Cylinder
 ├─ center: Vector3
 ├─ axis: Vector3 (normalized)
 ├─ diameter: float
 ├─ height: float
 └─ color: Color