Sombra is simple Raytracer written in pure Python.

Overview

Sombra

Sombra is simple Raytracer written in pure Python. It's main purpose is to help understand how raytracing works with a clean code. If you are looking for an efficient Raytracer you should probably use something like C++. The equations used are taken from the Image Synthesis class at Texas A&M University taught by professor Ergun Akleman.

The main program creates a raytraced image of a scene with simple objects like spheres and planes. It's using a resolution of 280x192px by default and random jitter anti-aliasing with 4 samples per axis.

showcase image

Usage

  • Install all dependencies by running python -m pip install -r requirements.txt
  • Run python -u main.py or python -u main.py -d to use debug mode which will not use Anti-Aliasing (-u is for displaying print messages in the console)
  • The output image will be stored in the project folder

Features

  • Sphere, Plane and Triangle objects
  • Diffuse, Specular and Border shaders
  • Area, Directional, Point and Spot lights
  • Change Field of View of camera by changing d (distance) and scale x and y parameters
  • Anti-Aliasing using Random Jitter
  • Reflection by setting Ks value to materials
  • Image textures
  • Normal Maps
  • Environment Sphere Map
  • Animation by running a physics simulation of a moving sphere

Documentation

You can see the documentation in the wiki

Testing

To run the tests use unittest in this way python -m unittest -v tests. This will run every test in the "tests" module, if you add new tests make sure to import them into the "__init__.py" file of the "tests" folder.

Dependencies

You will need to install

  • Python (3 and 2.7 are supported)

And external Python modules

  • numpy
  • pillow
  • progress

You can install the required python modules by running: python -m pip install -r requirements.txt or installing them individually: python -m pip install numpy pillow progress

Developed by Jesús Henríquez

You might also like...
Simple to use image handler for python sqlite3.

SQLite Image Handler Simple to use image handler for python sqlite3. Functions Function Name Parameters Returns init databasePath : str tableName : st

Wand is a ctypes-based simple ImageMagick binding for Python
Wand is a ctypes-based simple ImageMagick binding for Python

Wand Wand is a ctypes-based simple ImageMagick binding for Python, supporting 2.7, 3.3+, and PyPy. All functionalities of MagickWand API are implement

A simple python script to reveal the contents of a proof of vaccination QR code.

vaxidecoder A simple python script to reveal the contents of a proof of vaccination QR code. It takes a QR code image as input, and returns JSon data.

GTK and Python based, simple multiple image editor tool
GTK and Python based, simple multiple image editor tool

System Monitoring Center GTK3 and Python3 based, simple multiple image editor tool. Note: Development of this application is not completed yet. The ap

Simple Python package to convert an image into a quantized image using a customizable palette
Simple Python package to convert an image into a quantized image using a customizable palette

Simple Python package to convert an image into a quantized image using a customizable palette. Resulting image can be displayed by ePaper displays such as Waveshare displays.

Gaphor is the simple modeling tool
Gaphor is the simple modeling tool

Gaphor Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful. Gaphor implemen

MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets.

MyPaint A fast and dead-simple painting app for artists Features Infinite canvas Extremely configurable brushes Distraction-free fullscreen mode Exten

A simple programming language for manipulating images.

f-stop A simple programming language for manipulating images. Examples OPEN "image.png" AS image RESIZE image (300, 300) SAVE image "out.jpg" CLOSE im

A simple Streamlit Component to  compare images in Streamlit apps. It integrates Knightlab's JuxtaposeJS
A simple Streamlit Component to compare images in Streamlit apps. It integrates Knightlab's JuxtaposeJS

streamlit-image-juxtapose A simple Streamlit Component to compare images in Streamlit apps using Knightlab's JuxtaposeJS. The images are saved to the

Comments
  • chore(deps): bump pillow from 8.2.0 to 8.3.2

    chore(deps): bump pillow from 8.2.0 to 8.3.2

    Bumps pillow from 8.2.0 to 8.3.2.

    Release notes

    Sourced from pillow's releases.

    8.3.2

    https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html

    Security

    • CVE-2021-23437 Raise ValueError if color specifier is too long [hugovk, radarhere]

    • Fix 6-byte OOB read in FliDecode [wiredfool]

    Python 3.10 wheels

    • Add support for Python 3.10 #5569, #5570 [hugovk, radarhere]

    Fixed regressions

    • Ensure TIFF RowsPerStrip is multiple of 8 for JPEG compression #5588 [kmilos, radarhere]

    • Updates for ImagePalette channel order #5599 [radarhere]

    • Hide FriBiDi shim symbols to avoid conflict with real FriBiDi library #5651 [nulano]

    8.3.1

    https://pillow.readthedocs.io/en/stable/releasenotes/8.3.1.html

    Changes

    8.3.0

    https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html

    Changes

    ... (truncated)

    Changelog

    Sourced from pillow's changelog.

    8.3.2 (2021-09-02)

    • CVE-2021-23437 Raise ValueError if color specifier is too long [hugovk, radarhere]

    • Fix 6-byte OOB read in FliDecode [wiredfool]

    • Add support for Python 3.10 #5569, #5570 [hugovk, radarhere]

    • Ensure TIFF RowsPerStrip is multiple of 8 for JPEG compression #5588 [kmilos, radarhere]

    • Updates for ImagePalette channel order #5599 [radarhere]

    • Hide FriBiDi shim symbols to avoid conflict with real FriBiDi library #5651 [nulano]

    8.3.1 (2021-07-06)

    • Catch OSError when checking if fp is sys.stdout #5585 [radarhere]

    • Handle removing orientation from alternate types of EXIF data #5584 [radarhere]

    • Make Image.array take optional dtype argument #5572 [t-vi, radarhere]

    8.3.0 (2021-07-01)

    • Use snprintf instead of sprintf. CVE-2021-34552 #5567 [radarhere]

    • Limit TIFF strip size when saving with LibTIFF #5514 [kmilos]

    • Allow ICNS save on all operating systems #4526 [baletu, radarhere, newpanjing, hugovk]

    • De-zigzag JPEG's DQT when loading; deprecate convert_dict_qtables #4989 [gofr, radarhere]

    • Replaced xml.etree.ElementTree #5565 [radarhere]

    ... (truncated)

    Commits
    • 8013f13 8.3.2 version bump
    • 23c7ca8 Update CHANGES.rst
    • 8450366 Update release notes
    • a0afe89 Update test case
    • 9e08eb8 Raise ValueError if color specifier is too long
    • bd5cf7d FLI tests for Oss-fuzz crash.
    • 94a0cf1 Fix 6-byte OOB read in FliDecode
    • cece64f Add 8.3.2 (2021-09-02) [CI skip]
    • e422386 Add release notes for Pillow 8.3.2
    • 08dcbb8 Pillow 8.3.2 supports Python 3.10 [ci skip]
    • Additional commits viewable in compare view

    Dependabot compatibility score

    Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.


    Dependabot commands and options

    You can trigger Dependabot actions by commenting on this PR:

    • @dependabot rebase will rebase this PR
    • @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
    • @dependabot merge will merge this PR after your CI passes on it
    • @dependabot squash and merge will squash and merge this PR after your CI passes on it
    • @dependabot cancel merge will cancel a previously requested merge and block automerging
    • @dependabot reopen will reopen this PR if it is closed
    • @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
    • @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
    • @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
    • @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
    • @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
    • @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

    You can disable automated security fix PRs for this repo from the Security Alerts page.

    dependencies 
    opened by dependabot[bot] 0
  • chore(deps): bump pillow from 8.1.1 to 8.2.0

    chore(deps): bump pillow from 8.1.1 to 8.2.0

    Bumps pillow from 8.1.1 to 8.2.0.

    Release notes

    Sourced from pillow's releases.

    8.2.0

    https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html

    Changes

    Dependencies

    Deprecations

    ... (truncated)

    Changelog

    Sourced from pillow's changelog.

    8.2.0 (2021-04-01)

    • Added getxmp() method #5144 [UrielMaD, radarhere]

    • Add ImageShow support for GraphicsMagick #5349 [latosha-maltba, radarhere]

    • Do not load transparent pixels from subsequent GIF frames #5333 [zewt, radarhere]

    • Use LZW encoding when saving GIF images #5291 [raygard]

    • Set all transparent colors to be equal in quantize() #5282 [radarhere]

    • Allow PixelAccess to use Python int when parsing x and y #5206 [radarhere]

    • Removed Image._MODEINFO #5316 [radarhere]

    • Add preserve_tone option to autocontrast #5350 [elejke, radarhere]

    • Fixed linear_gradient and radial_gradient I and F modes #5274 [radarhere]

    • Add support for reading TIFFs with PlanarConfiguration=2 #5364 [kkopachev, wiredfool, nulano]

    • Deprecated categories #5351 [radarhere]

    • Do not premultiply alpha when resizing with Image.NEAREST resampling #5304 [nulano]

    • Dynamically link FriBiDi instead of Raqm #5062 [nulano]

    • Allow fewer PNG palette entries than the bit depth maximum when saving #5330 [radarhere]

    • Use duration from info dictionary when saving WebP #5338 [radarhere]

    • Stop flattening EXIF IFD into getexif() #4947 [radarhere, kkopachev]

    ... (truncated)

    Commits
    • e0e353c 8.2.0 version bump
    • ee635be Merge pull request #5377 from hugovk/security-and-release-notes
    • 694c84f Fix typo [ci skip]
    • 8febdad Review, typos and lint
    • fea4196 Reorder, roughly alphabetic
    • 496245a Fix BLP DOS -- CVE-2021-28678
    • 22e9bee Fix DOS in PSDImagePlugin -- CVE-2021-28675
    • ba65f0b Fix Memory DOS in ImageFont
    • bb6c11f Fix FLI DOS -- CVE-2021-28676
    • 5a5e6db Fix EPS DOS on _open -- CVE-2021-28677
    • Additional commits viewable in compare view

    Dependabot compatibility score

    Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.


    Dependabot commands and options

    You can trigger Dependabot actions by commenting on this PR:

    • @dependabot rebase will rebase this PR
    • @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
    • @dependabot merge will merge this PR after your CI passes on it
    • @dependabot squash and merge will squash and merge this PR after your CI passes on it
    • @dependabot cancel merge will cancel a previously requested merge and block automerging
    • @dependabot reopen will reopen this PR if it is closed
    • @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
    • @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
    • @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
    • @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
    • @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
    • @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

    You can disable automated security fix PRs for this repo from the Security Alerts page.

    dependencies 
    opened by dependabot[bot] 0
  • chore(deps): bump pillow from 7.1.2 to 8.1.1

    chore(deps): bump pillow from 7.1.2 to 8.1.1

    Bumps pillow from 7.1.2 to 8.1.1.

    Release notes

    Sourced from pillow's releases.

    8.1.1

    https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

    8.1.0

    https://pillow.readthedocs.io/en/stable/releasenotes/8.1.0.html

    Changes

    Dependencies

    Deprecations

    ... (truncated)

    Changelog

    Sourced from pillow's changelog.

    8.1.1 (2021-03-01)

    • Use more specific regex chars to prevent ReDoS. CVE-2021-25292 [hugovk]

    • Fix OOB Read in TiffDecode.c, and check the tile validity before reading. CVE-2021-25291 [wiredfool]

    • Fix negative size read in TiffDecode.c. CVE-2021-25290 [wiredfool]

    • Fix OOB read in SgiRleDecode.c. CVE-2021-25293 [wiredfool]

    • Incorrect error code checking in TiffDecode.c. CVE-2021-25289 [wiredfool]

    • PyModule_AddObject fix for Python 3.10 #5194 [radarhere]

    8.1.0 (2021-01-02)

    • Fix TIFF OOB Write error. CVE-2020-35654 #5175 [wiredfool]

    • Fix for Read Overflow in PCX Decoding. CVE-2020-35653 #5174 [wiredfool, radarhere]

    • Fix for SGI Decode buffer overrun. CVE-2020-35655 #5173 [wiredfool, radarhere]

    • Fix OOB Read when saving GIF of xsize=1 #5149 [wiredfool]

    • Makefile updates #5159 [wiredfool, radarhere]

    • Add support for PySide6 #5161 [hugovk]

    • Use disposal settings from previous frame in APNG #5126 [radarhere]

    • Added exception explaining that repr_png saves to PNG #5139 [radarhere]

    • Use previous disposal method in GIF load_end #5125 [radarhere]

    ... (truncated)

    Commits
    • 741d874 8.1.1 version bump
    • 179cd1c Added 8.1.1 release notes to index
    • 7d29665 Update CHANGES.rst [ci skip]
    • d25036f Credits
    • 973a4c3 Release notes for 8.1.1
    • 521dab9 Use more specific regex chars to prevent ReDoS
    • 8b8076b Fix for CVE-2021-25291
    • e25be1e Fix negative size read in TiffDecode.c
    • f891baa Fix OOB read in SgiRleDecode.c
    • cbfdde7 Incorrect error code checking in TiffDecode.c
    • Additional commits viewable in compare view

    Dependabot compatibility score

    Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.


    Dependabot commands and options

    You can trigger Dependabot actions by commenting on this PR:

    • @dependabot rebase will rebase this PR
    • @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
    • @dependabot merge will merge this PR after your CI passes on it
    • @dependabot squash and merge will squash and merge this PR after your CI passes on it
    • @dependabot cancel merge will cancel a previously requested merge and block automerging
    • @dependabot reopen will reopen this PR if it is closed
    • @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
    • @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
    • @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
    • @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
    • @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
    • @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
    • @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

    You can disable automated security fix PRs for this repo from the Security Alerts page.

    dependencies 
    opened by dependabot[bot] 0
Releases(v0.9.1)
  • v0.9.1(Oct 18, 2021)

    Optimization of rendering using multiprocessing. Now it's using about 30% of the memory it used before and it's faster. That's because now rays are created and traced in the same function that goes in parallel.

    Also now using imap_unordered function for memory optimization (https://docs.python.org/3/library/multiprocessing.html#multiprocessing.pool.Pool.map)

    Source code(tar.gz)
    Source code(zip)
  • v0.9.0(Dec 28, 2020)

    • Use many processes with multiprocessing library
    • This is a first version, it's not efficient with memory. It creates every ray at the beginning (memory expensive) and creates a pool with all of them, in the future maybe it would be better to create some of the rays, start the workers, wait for them, then create more rays, and assign to workers like that in a loop until the entire screen is finished
    • At resolution of 720p it took ~10GB of RAM for 8 processes
    Source code(tar.gz)
    Source code(zip)
  • v0.8.0(Dec 27, 2020)

    • Pathtracing with Russian Roulette
    • Caustics using Light Raytracing (Backwards Raytracing) with Illumination Maps

    (see pathtracer.py inside examples)

    Source code(tar.gz)
    Source code(zip)
  • v0.7.0(Jul 12, 2020)

    Add Depth of Field (an out of focus effect) by using a virtual camera lens, with parameters:

    • f: focal distance, which is the distance from the view window (image plane) to the focal plane (where every object is in focus)
    • ap_sx: aperture size in the horizontal coordinate
    • ap_sy: aperture size in the vertical coordinate
    Source code(tar.gz)
    Source code(zip)
  • v0.6.1(Jun 28, 2020)

    • Fix variable with same name, light for barycentric shading and light for scene lights in compute_color function
    • Fix error when animation_out folder doesn't exist, in create_animation function
    Source code(tar.gz)
    Source code(zip)
  • v0.6.0(May 24, 2020)

    • State class that stores position, velocity, rotation, angular velocity, scale and mass.
    • Simulation module that include RigidBody with a simulate_physics function, which changes State using a given time delta. The Simulation has a run function that will simulate physics on each RigidBody of the system for the duration time of the simulation.
    • Animation module which includes Keyframe and Transform, and can create a series of keyframes using a list of states and then use the list of keyframes to render a list of images.
    Source code(tar.gz)
    Source code(zip)
  • v0.5.0(Apr 25, 2020)

  • v0.3.0(Apr 9, 2020)

  • v0.2.0(Mar 31, 2020)

  • v0.1.0(Mar 24, 2020)

Owner
Hernaldo Jesus Henriquez Nuñez
MS Viz (CG) at Texas A&M. BS CS at PUC. Have seen too many episodes of The Simpsons. Love God.
Hernaldo Jesus Henriquez Nuñez
Alternate Python bindings for the Open Asset Import Library (ASSIMP)

Impasse A simple Python wrapper for assimp using cffi to access the library. Requires Python = 3.7. It's a fork of PyAssimp, Assimp's official Python

Salad Dais 3 Sep 26, 2022
Script for the creation of metadatas and the randomization of images of MekaVerse

MekaVerse-random Script for the creation of metadata and the randomization of images of MekaVerse Step to replay the random : Create a folder : output

Miinded 8 Sep 07, 2022
vsketch is a Python generative art toolkit for plotters

Generative plotter art environment for Python

Antoine Beyeler 380 Dec 29, 2022
Fill holes in binary 2D & 3D images fast.

Fill holes in binary 2D & 3D images fast.

11 Dec 09, 2022
Python framework for creating and scaling up production of vector graphics assets.

Board Game Factory Contributors are welcome here! See the end of readme. This is a vector-graphics framework intended for creating and scaling up prod

Adam Volný 5 Jul 13, 2022
An automated Comic Book downloader (cbr/cbz) for use with SABnzbd, NZBGet and torrents

Mylar Note that feature development has stopped as we have moved to Mylar3. EOL for this project is the end of 2020 and will no longer be supported. T

979 Dec 13, 2022
Tool that takes your photo and generates a pixelated color by number photo.

Color by number Tool that takes your photo and generates a pixelated color by number photo. Requirements You need to have python installed on your com

1 Dec 18, 2021
A simple image to text converter with GUI!

TEXTEMAGE! Textemage is a quick tool that extracts text from images, it is a Python based GUI program(also available in executable version). This is a

Akascape 5 Oct 26, 2022
Find target hash collisions for Apple's NeuralHash perceptual hash function.💣

neural-hash-collider Find target hash collisions for Apple's NeuralHash perceptual hash function. For example, starting from a picture of this cat, we

Anish Athalye 630 Jan 01, 2023
PIX is an image processing library in JAX, for JAX.

PIX PIX is an image processing library in JAX, for JAX. Overview JAX is a library resulting from the union of Autograd and XLA for high-performance ma

DeepMind 294 Jan 08, 2023
QR Code Generator

In this project, we'll be using some libraries to instantly generate authentic QR Codes and export them in various formats

Hassan Shahzad 3 Jun 02, 2022
Imutils - A series of convenience functions to make basic image processing operations such as translation, rotation, resizing, skeletonization, and displaying Matplotlib images easier with OpenCV and Python.

imutils A series of convenience functions to make basic image processing functions such as translation, rotation, resizing, skeletonization, and displ

PyImageSearch 4.3k Jan 01, 2023
Computer art based on joining transparent images

Computer Art There is no must in art because art is free. Introduction The following tutorial exaplains how to generate computer art based on a series

Computer Art 12 Jul 30, 2022
OctoPrint is the snappy web interface for your 3D printer!

OctoPrint OctoPrint provides a snappy web interface for controlling consumer 3D printers. It is Free Software and released under the GNU Affero Genera

OctoPrint 7.1k Jan 03, 2023
Snowfall - helpful image handling utils - abstracts various file and opencv and pil features into result oriented functions

snowfall helpful image handling utils - abstracts various file and opencv and pil features into result oriented functions usage examples: from image_h

Less Wright 2 Jan 09, 2022
BeeRef — A Simple Reference Image Viewer

BeeRef — A Simple Reference Image Viewer BeeRef lets you quickly arrange your reference images and view them while you create. Its minimal interface i

Rebecca 245 Dec 25, 2022
Gaphor is the simple modeling tool

Gaphor Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful. Gaphor implemen

Gaphor 1.3k Dec 31, 2022
Png-to-stl - Converts PNG and text to SVG, and then extrudes that based on parameters

have ansible installed locally run ansible-playbook setup_application.yml this sets up directories, installs system packages, and sets up python envir

1 Jan 03, 2022
PyPixelArt - A keyboard-centered pixel editor

PyPixelArt - A keyboard-centered pixel editor The idea behind PyPixelArt is uniting: a cmdpxl inspired pixel image editor applied to pixel art. vim 's

Douglas 18 Nov 14, 2022
An ascii art generator that's actually good. Does edge detection and selects the most appropriate characters.

Ascii Artist An ascii art generator that's actually good. Does edge detection and selects the most appropriate characters. Installing Installing with

18 Jan 03, 2023