FX Challenge Ray Tracer Render

Back when I was training in Dreamworks Animation to be an FX Artist, we got the task of writing a ray tracer from scratch and create your own interesting scene with existing assets in the internal library. I wanted to stand out and decided to focus on reflections and refractions to be the defining factor.

I want to share that output with you. Note this is a low resolution photograph of the output. This has received no post processing treatment whatsoever.

Time Pass Artwork #3

  • Neelkamal chair
    Neelkamal chair
  • sketch of a painting
    sketch of a painting
  • deadmau5 found some cheese
    deadmau5 found some cheese
  • Asian girl from a magazine page
    Asian girl from a magazine page
  • You got yourself and a gun
    You got yourself and a gun
  • European girl
    European girl
  • Good martini comes in a bottle and the cherry forms in a bit
    Good martini comes in a bottle and the cherry forms in a bit
  • Guess who show?
    Guess who show?
  • And it matters, even if it’s against the facts, even if it hurts others
    And it matters, even if it’s against the facts, even if it hurts others
  • Dr Strange Love and How I Started Loving the Bombs
    Dr Strange Love and How I Started Loving the Bombs
  • Just stuff on table
    Just stuff on table
  • DDU 5 Years
    DDU 5 Years
  • For Rock
    For Rock
  • scenery note2
    scenery note2
  • Lighting is difficult note2
    Lighting is difficult note2
  • city and town fresh paint
    city and town fresh paint
  • Nuke stickdraw
    Nuke stickdraw
  • must draw women note2
    must draw women note2
  • Just things in my head (using SNote)
    Just things in my head (using SNote)
  • upper berth in a train
    upper berth in a train
  • Nooice note2
    Nooice note2

Durga Pooja, Jabalpur, 2013

A very happy Dussehra to all of you. Dussehra in Jabalpur as you know from my previous posts, is celebrated in a grand manner with streets crowded to make four wheelers unfeasible to ride, lots of things to buy and a general festive essence in the atmosphere.

Following are some pictures from select places from unaccountable numbers of places Durga Pooja happens all over the city. I wasn’t home this time but thanks to internet we are always connected.

Westland
Type 2 Khamaria
Image Courtesy: Devashish Mukerji, Jabalpur
Cantt. Board
City Bengali Club
DB Club Entrance Pendal
DB Club

 

Q Type Khamaria
Prem Nagar Kalibari
Tagore Colony
Image Courtesy: Aakriti Ghosh, Jabalpur

Other than that, I have been working on this drawing and I want to share it with you. Durga the invincible, the goddess of power:

Only the sketch:
 

Simple and Easy Ray Tracer

This is possibly one of the simplest ray tracer, written not to technically achieve anything, but to understand the basic theory. This code is minimal, written in C, uses just the algorithms needed to trace, very less pointers usage, intentionally brute force, and no use of any external libraries other than ones which come packaged with GCC by default. The code implements the following lighting models: ambient, diffuse, specular, hard shadows, reflections and one sided refractions. Please find the github link after a sample output, it is shared with the most relaxed license.

Generated Output

github.com/shibenb/simple-c-raytracer

This was done for a one day workshop at BITS Pilani Hyderabad Campus few days ago (for their technical fest ATMOS). The challenge was to teach introduction to computer graphics and the basic theory of ray tracer, in one day, to a wide range of undergraduate students who may not be coming from a computer science background. I hope the students gained something and found it interesting.

Our team: Adi Shayan, Sneha Venkatraman, Yash Agrawal, Shiben Bhattacharjee, Naveen Kumar, Nitish Tripathi