MiniRT |  Cursus

A project on Ray-Tracing and rendering three-dimensional computer-generated images. Using MiniLibX, the 42 graphical library.

Caution

If you need more technical info, go check our Github-Wiki

What is the project about

MiniRT is a project that introduces the basics of Ray tracing, focusing on 3D computer-generated images from a configuration file. It includes ambient light, lights, camera, and three geometrical figures (Plane, Sphere, Cylinder). The bonus part introduces multiple lights, cones as a geometrical figure, and additional elements.

General Instrucctions

• Makefile will compile your source files. It must include 'all' and 'bonus' rules for the Mandatory and Bonus parts, respectively. It should not relink.
• You are required to use MiniLibX for this project.
• The program should be compiled using the following commands:

> ./miniRT <filename>.rt
> ./miniRT_bonus <filename>.rt

Warning

Maps must have the .rt extension

Mandatory Instrucctions

Configuration file has three mandatory elements: Camera, Light and Ambient Light. And three optional geomtrical figures: Plane, Sphere, Cylinder. Each element has the following identifier:

Name	Identifier	Name	Identifier
Ambient Light	A	Plane	pl
Camera	C	Sphere	sp
Light	L	Cylinder	cy

Keyboard Commands

Displacement Camera

• MAC Option ⌥ + Right Clickand swip with the mouse
• LINUX Alt + Left Click and swip with the mouse

Zoom Camera

• MAC Option ⌥ + Mouse Wheel
• LINUX Alt + Mouse Wheel

Rotation Camera

• Shift ⇧ + Left Click and swip with the mouse

Displacement Light

• Ctrl ^

Reset settings

• R Reset Camera Position
• L Reset Light Position

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File configuration

Mandatory Elements

• Ambient Light:
  • Identifier: A
  • Ambient lighting ratio in range [0.0,1.0]: 0.2
  • Colors in RGB in range [0-255]: 255, 255, 255
• Camera
  • Identifier: C
  • XYZ coordinates of the view point: 60,0,0
  • 3D normalized orientation vector. In range [-1,1] for each x,y,z axis: 1.0,0.0,0.0
  • FOV : Horizontal field of view in degrees in range [0,180]: 170
• Light
  • Identifier: L
  • XYZ coordinates of the light point: 90,50,70
  • The light brightness ratio in range [0.0,1.0]: 0.7
  • (unused in mandatory part)R,G,B colors in range [0-255]: 255, 255, 255

Optional Elements

• Plane
  • Identifier: pl
  • XYZ coordinates of a point in the plane: 0.0,0.0,-500.0
  • 3D normalized vector. In range [-1,1] for each x,y,z axis: -1.0,1.0,1.0
  • Colors in RGB in range [0-255]: 0,0,225
• Sphere
  • Identifier: sp
  • XYZ coordinates of the sphere center: 90,0.0,0.0
  • Diameter: 60
  • Colors in RGB in range [0-255]: 0, 0, 255
• Cylinder
  • Identifier: cy
  • XYZ coordinates of the center of the cylinder: 90.0,0.0,0.0
  • 3D normalized vector of axis of cylinder. In range [-1,1] for each x,y,z axis: 0.0,1,1.0
  • Diameter: 30
  • Height: 210.42
  • Colors in RGB in range [0,255]: 0, 0, 255

Bonus Instrucctions

Resources

• Ray Tracing in One Weekend, (Peter Shirley, Trevor David Black, Steve Hollasch)
• Ray Tracing [YouTube]
• Phong Reflection Model
• Modelo de Color HSV
• HSL to RGB conversion
• Lighting with the Phong reflection model (Part1 of 2)
• Lighting with the Phong reflection model (Part2 of 2)
• A very good bump mapping explanation