Multipaint is a web-based drawing tool that simulates the color palettes and technical limitations of retro computing platforms like the Commodore 64, NES, Game Boy, and Sega Genesis/Mega Drive. It allows users to create images using the restricted color sets and dithering techniques characteristic of these systems, offering a nostalgic and challenging artistic experience. The tool features various drawing instruments, palette selection, and export options for sharing or further use in projects.
"Space Invaders," released by Taito in 1978, revolutionized the arcade gaming industry. Designed by Tomohiro Nishikado, the game features descending rows of alien invaders that players must shoot down before they reach the bottom of the screen. The game's increasing speed and iconic descending sound effects created a tense and engaging experience. Its innovative gameplay, including player-controlled movement, destructible shields, and the bonus UFO, cemented its place as a foundational title for the shoot 'em up genre and influenced countless games that followed. It also popularized the joystick control scheme and helped establish the golden age of arcade video games.
Hacker News users discuss the ingenuity of the original Space Invaders design, particularly its increasing speed as the aliens are eliminated, a mechanic born from hardware limitations that became a core part of the gameplay. Several commenters recall fond memories of playing the game in arcades and on early home computers like the Atari 2600. Some discuss the various ports and clones, comparing their faithfulness to the original and highlighting differences in sound and gameplay. The technical aspects are also touched upon, including discussions of the hardware limitations of the original arcade machine and how those limitations influenced the game's design. The conversation also drifts into broader nostalgia for the golden age of arcade gaming and the impact Space Invaders had on the industry. A few commenters share personal anecdotes about their experiences with the game and its cultural impact.
Dithering is a technique used to create the illusion of more colors and smoother gradients in images with a limited color palette. The post "Dithering in Colour" explores various dithering algorithms, focusing on how they function with color images. It explains ordered dithering using matrices like the Bayer matrix, and error-diffusion dithering methods such as Floyd-Steinberg, which distribute quantization errors to neighboring pixels. The post visually demonstrates the effects of these algorithms with examples, highlighting the trade-offs between different methods in terms of perceived noise and color accuracy. It concludes by mentioning how dithering remains relevant today for stylistic effects and performance optimization, even with modern displays capable of displaying millions of colors.
HN users generally praised the article for its clear explanation of dithering, particularly its interactive visualizations. Several commenters shared their experiences with dithering, including its use in older games and demos. Some discussed the subtle differences between various dithering algorithms, while others highlighted the continued relevance of these techniques in resource-constrained environments or for stylistic effect. One commenter pointed out a typo in the article, which the author promptly corrected. A few users mentioned alternative resources on the topic, including a related blog post and a book.
This blog post details the creation of a PETSCII image on a Commodore 64, using a Python script to convert a source image into the limited character set and colors available. The author outlines the challenges of working within these constraints, including the reduced resolution, fixed character sizes, and dithering required to simulate shades of gray. They explain the conversion process, which involves resizing and color reduction before mapping the image to the nearest matching PETSCII characters. Finally, the post demonstrates loading and displaying the resulting PETSCII data on a real Commodore 64, showcasing the final, retro-styled image.
Hacker News users discuss the Commodore 64 PETSCII image, primarily focusing on the technical aspects of its creation. Several commenters express fascination with the dithering technique employed, and some delve into the specifics of how such an image could be generated, including discussions about ordered dithering algorithms like Bayer and Floyd-Steinberg. Others reminisce about the C64's unique character set and color limitations, while a few share their own experiences and experiments with creating similar images. There's also a brief tangent about the challenges of representing images with limited palettes and the artistic value of these constraints. Overall, the comments reflect an appreciation for the technical ingenuity and artistic constraints of the era.
MS Paint IDE leverages the familiar simplicity of Microsoft Paint to create a surprisingly functional code editor and execution environment. Users write code directly onto the canvas using the text tool, which is then parsed and executed. The output, whether text or graphical, is displayed within the Paint window itself. While limited by Paint's capabilities, it supports a range of programming features including variables, loops, and conditional statements, primarily through a custom scripting language tailored for this unique environment. This project demonstrates the surprising versatility of MS Paint and offers a playful, unconventional approach to coding.
Hacker News users were generally impressed with the MS Paint IDE, praising its creativity and clever execution. Some found its impracticality charming, while others saw potential for educational uses or as a unique challenge for code golfing. A few commenters pointed out the project's limitations, especially regarding debugging and more complex code, but the overall sentiment was positive, appreciating the project as a fun and unconventional exploration of coding environments. One commenter even suggested it could be expanded with OCR to make it a "real" IDE, highlighting the project's potential for further development and the community's interest in seeing where it could go. Several users reminisced about past simpler times in computing, with MS Paint being a nostalgic touchstone.
Aras Pranckevičius details a technique for creating surface-stable fractal dithering on the Playdate handheld console. The core idea is to generate dithering patterns not in screen space, but in a "surface" space that's independent of the rendered object's movement or animation. This surface space is then sampled in screen space, allowing the dither pattern to remain consistent relative to the object's surface, avoiding distracting "swimming" artifacts that occur with traditional screen-space dithering. The implementation uses a precomputed 3D noise texture as the basis for the fractal pattern and leverages the Playdate's CPU for the calculations, achieving a visually pleasing and performant dithering solution for the device's limited display.
HN commenters generally praised the visual appeal and technical cleverness of the dithering technique. Several appreciated the detailed explanation and clear diagrams in the blog post, making it easy to understand the algorithm. Some discussed potential applications beyond the Playdate, including shaders and other limited-palette situations. One commenter pointed out a potential similarity to Bayer ordered dithering at higher resolutions, suggesting it might be a rediscovery of a known technique. Another questioned the "surface stability" claim, arguing that the pattern still shifts with movement. A few users shared links to related resources on dithering and fractal patterns.
The blog post "The Most Mario Colors" analyzes the color palettes of various Super Mario games across different consoles. It identifies the most frequently used colors in each game and highlights the evolution of Mario's visual style over time. The author extracts pixel data from sprites and backgrounds, processing them to determine the dominant colors. The analysis reveals trends like the shift from brighter, more saturated colors in earlier games to slightly darker, more muted tones in later titles. It also demonstrates the consistent use of specific colors, particularly variations of red, brown, and blue, across multiple games, showcasing the iconic color palette associated with the Mario franchise.
Several Hacker News commenters discussed the methodology used in the original blog post, pointing out potential flaws like the exclusion of certain games and the subjective nature of color selection, especially with sprite limitations. Some users debated the specific colors chosen, offering alternative palettes or highlighting iconic colors missing from the analysis. Others appreciated the nostalgic aspect and the technical breakdown of color palettes across different Mario games, while some shared related resources and personal experiences with retro game color limitations. The overall sentiment leaned towards finding the blog post interesting, though not scientifically rigorous. A few commenters also questioned the practicality of such an analysis.
Summary of Comments ( 6 )
https://news.ycombinator.com/item?id=43699431
Hacker News users generally praised Multipaint for its clever idea and execution, with several expressing nostalgia for the limitations of older hardware palettes. Some discussed the technical challenges and intricacies of working within such constraints, including dithering techniques and color banding. A few commenters suggested potential improvements like adding support for different palettes (e.g., Amiga, EGA) and implementing features found in classic paint programs like Deluxe Paint. Others appreciated the educational aspect of the tool, highlighting its value in understanding the limitations and creative solutions employed in older games and graphics. The overall sentiment is positive, viewing Multipaint as a fun and insightful way to revisit the aesthetics of retro computing.
The Hacker News post titled "Multipaint: Draw pictures with color limitations of 8-bit and 16-bit platforms" sparked a modest discussion with several interesting comments.
One commenter expressed appreciation for the tool's simplicity and ease of use, particularly the straightforward process of selecting palettes. They also highlighted the value of the provided examples, which they found helpful for learning.
Another commenter pointed out the historical significance of the limited color palettes showcased in the tool. They noted how these restrictions forced artists and developers to be creative in their use of color, leading to distinctive visual styles associated with specific platforms like the Amiga, Atari ST, and NES. This comment adds a layer of context and appreciation for the challenges and ingenuity of that era.
A different commenter shared their personal experience using Deluxe Paint on the Amiga 500. They praised the software's capabilities, especially its color cycling feature. This anecdote provided a firsthand account of working within the color constraints of the time, adding a personal touch to the discussion.
Another commenter touched upon the complexities of palette management within the context of limited color displays. They explained how the software's ability to select the "best" colors is a non-trivial problem and praised Multipaint's approach. They further elaborated on the importance of dithering techniques for displaying images with more colors than available on the palette, highlighting the "ordered dither" method used by Deluxe Paint.
One more user fondly recalled using similar tools, specifically mentioning DEGAS Elite for the Atari ST. They shared their memories of creating ANSI art using only 16 colors, further enriching the discussion with personal experiences from the era of limited color displays.
Finally, a commenter mentioned the website's slightly misleading use of "8-bit" and "16-bit" terminology. They clarified that the term "8-bit" usually refers to indexed color mode with 256 colors, while "16-bit" commonly refers to high color mode with thousands of colors. They suggested "4-bit" and "8-bit indexed color" would be more accurate descriptions for the limitations being simulated. This comment provides a valuable technical clarification for the discussion, highlighting potential misunderstandings around the terminology used.