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Split the rain pass's compute shader in two, with one governing brightness and the other governing glyph cycling. This allows glyphs to randomly cycle properly, and leaves room to store new properties.

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Rezmason
2022-09-07 12:35:27 -07:00
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commit 2eb7b70926
8 changed files with 200 additions and 139 deletions
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README.md
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@@ -50,7 +50,7 @@ While there have been a lot of attempts at #1 and #3, they're all missing import
- **Get the glow and color right.** Matrix symbols aren't just some shade of phosphorous green; they're first given a bloom effect, and then get tone-mapped to the green color palette.
- **Symbols change shape faster as they dim.** When symbols light up, they almost never change shape, but their cycle speed increases the darker and darker they get.
- **Two "raindrops" can occupy the same column.** This is complicated, because we can't allow them to collide. A useful approach to thinking about this is, each column's glyph brightness is a kind of [sawtooth wave](http://mathworld.wolfram.com/SawtoothWave.html).
- **Capture the glyph sequence.** Yes, the symbols in the sequels' opening titles, which are arguably the highest quality versions of the 2D effect, change according to a repeating sequence (see `glyph order.txt`).
- **Capture the glyph sequence.** Yes, the symbols in the sequels' opening titles, which are arguably the highest quality versions of the 2D effect, change according to a repeating sequence (see `glyph order.txt`). This is only a technical detail, and only applies to *Reloaded* and *Revolutions*— everyplace else, the symbols change randomly.
- **Make it free, open source and web based.** Because someone could probably improve on what I've done, and I'd like to see that, and maybe incorporate their improvements back into this project.
- **Support as many browsers and devices as possible.** This project used to rely on Three.js's GPUComputationRenderer, which only worked in browsers supporting WebGL's [oes_texture_float extension](https://caniuse.com/#search=OES_texture_float). The rewrite dropped this dependency, and gained support for a broader range of browsers and devices.
- **Whip up some artistic license and depict the *previous* Matrix versions.** The sequels describe [a paradisiacal predecessor](https://rezmason.github.io/matrix?version=paradise) to the Matrix that was too idyllic, [and another earlier, nightmarish Hobbesian version](https://rezmason.github.io/matrix?version=nightmare) that proved too campy. They depict some programs running older, differently colored code, so it's time someone tried rendering them.