Unreasonably effective – How video games use LUTs and how you can too

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Fpga Programming Language

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  • jslens

    A small Javascript amusement

    • They are extra useful to precalculate other visual effects. In the past, following a magazine tutorial, I coded a very cheap raytraced "lens effect" on a 286. I recently (5 years ago!) ported it to js [0].

    That magazine got me into fractals and raytracing, BTW.

    [0] https://github.com/luismedel/jslens

  • DOOM-FX

    Doom/FX for Super Nintendo with SuperFX GSU2A

    • A Podcast Of Unnecessary Detail just did an episode talking about the SNES Doom port and how it used LUTs for trigonometry as the SNES didn't have a graphics processor.

    https://festivalofthespokennerd.com/podcast/series-3-episode...

    https://github.com/RandalLinden/DOOM-FX

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • gfxcat

    A catalog of my old-school GFX effects

    • - see it live: https://htmlpreview.github.io/?https://github.com/sylefeb/gf...

  • gf

    • - source code: https://github.com/sylefeb/gfxcat/blob/main/raytrace/raytrac...

    And of course procedural textures!! Perlin noise is made of lookup tables, and often multiple lookups are combined to then lookup a clolormap (https://redirect.cs.umbc.edu/~ebert/691/Au00/Notes/procedura...)

    There are so many other examples. Also, FPGAs are quite literally made

  • Silice

    Silice is an easy-to-learn, powerful hardware description language, that simplifies designing hardware algorithms with parallelism and pipelines.

    • - how it is computed: https://github.com/sylefeb/Silice/blob/master/projects/ice-v...

    Julia fractal, with a table to do integer multiply! (2.a.b = (a+b)^2 - a^2 - b^2, so just precompute all x^2 in a table! )

  • tinygpus

    TinyGPUs, making graphics hardware for 1990s games

    • - actual lookup table generation: https://github.com/sylefeb/tinygpus/blob/498be1b803d0950328a...

    Sine tables are also very typical, for animating things on screen or plain

  • Silixel

    Exploring gate level simulation

  • SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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