nowfound

Life & fun · August 18, 2015

HT

Heman – Tiny C library for working with height maps

Heman – Tiny C library for working with height maps launched on August 18, 2015 with 46 votes, #1,309 of 3,588 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 11 years on.

In plain words

Heman is a C library that provides image utilities for working with height maps and other floating-point images. It is designed for developers who need to process and manipulate height map data programmatically. The library's name derives from the combined terms "height map" and "normal map," reflecting its core functionality for handling these types of graphical data.

written from the facts on this page · September 2026

From the sources

Heman is a C library of image utilities for dealing with height maps and other floating-point images. It’s a subset of letters taken from height map and normal map . You can access the source code at:from heman.readthedocs.org

Does a similar job

all alternatives →
  • Thinc, a new deep learning library by the makers of spaCy and FastAPI2020 · thinc.ai · ▲250

    Thinc is a lightweight type-checked deep learning library for composing models, with support for layers defined in frameworks like PyTorch and TensorFlow.

  • IT
  • A hash array-mapped trie implementation in C2023 · github.com · ▲171

    Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…

  • TG – Fast geometry library for C2023 · github.com · ▲201

    Geometry library for C - Fast point-in-polygon. Contribute to tidwall/tg development by creating an account on GitHub.

  • HA
    Hsdlib – A C Library for Vector Similarity with SIMD Acceleration2025 · ▲38

    Hsdlib is a small C library for fast vector distance and similarity calculations. At the moment, it supports: - Euclidean, Manhattan, and Hamming distances - Dot product, cosine, and Jaccard similarities Hsdlib uses SIMD acceleration (AVX, AVX2, AVX512, NEON, and SVE instructions) to speed things up. GitHub link: https://github.com/habedi/hsdlib

  • Tiny C library for tessellating lines and curves2019 · prideout.net · ▲6

    Single-file C library for triangulating wide lines, curves, and streamlines.

More life & fun this month

the category →

Source: Show HN post ↗

Launched alongside, August 2015

the whole month →
  • Chat with some of the world’s most interesting makers

    Life & fun · 2015

  • Better shower, 70% less water

    Life & fun · 2015 · brondell.com

  • MS

    Life & fun · 2015 · blog.filippo.io

  • M▲714

    A personal assistant built inside Facebook Messenger

    Work · 2015 · facebook.com

  • A curated directory of content marketing resources

    Growth · 2015 · contentmarketingstack.co

  • A curated collection of growth hacking tools

    Growth · 2015