BITCOUNT(3G)

💅 NAME 💅

bitCount — counts the number of 1 bits in an integer 🧮✨

okay so real quick, bestie: this is a page from the 3G manual, and it's all about a lil GLSL function called bitCount that literally just counts your ones. like a vibe check but for binary. slay.

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🌸 DECLARATION 🌸

here's how you call her, fr fr:

genIType bitCount(genIType value);

genIType bitCount(genUType value);

two whole signatures, both iconic, both valid. pick whichever matches your value, no cap. 👑

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🎀 PARAMETERS 🎀

• value — this is the number whose bits you want counted. yes queen, just hand her the integer and she'll do the math. that's it. that's the whole parameter list. obsessed. 💖

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✨ DESCRIPTION ✨

bitCount returns the number of bits that are set to 1 in the binary representation of value.

that's it!! that's the whole thing!! she looks at your integer's binary glow-up and counts every single 1 like she's counting her blessings. the 0s? not invited. not on the list. we don't know them. 🙈

it's giving "popcount" energy if you know, you know (iykyk 🫶).

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🌈 VERSION SUPPORT 🌈

okay so this is where it gets a little messy — bitCount did NOT come out swinging in every version. let me break down the OpenGL Shading Language tea for you, version by version:

• 1.10 — nope, - 😭
• 1.20 — still no, - 😭
• 1.30 — bestie no, - 😭
• 1.40 — not yet, - 😭
• 1.50 — nope, - 😭
• 3.30 — still a -, we were WAITING 😭
• 4.00 — ✔ finally!! she's here!! 🎉
• 4.10 — ✔ she ate 💅
• 4.20 — ✔ still eating 💅
• 4.30 — ✔ unstoppable 💅
• 4.40 — ✔ queen behavior 👑
• 4.50 — ✔ and she never left ✨

so like, the function name is bitCount and the vibes were: absent for six whole versions, then absolutely everywhere. main character arc, honestly.

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🦋 SEE ALSO 🦋

• findLSB()
• findMSB()

go read those too, they're the sister functions and they're lowkey serving as well 💜

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📜 COPYRIGHT 📜

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.

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📜 COPYRIGHT (yes, again) 📜

Copyright © 2011-2014 Khronos Group

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and that's the whole page, bestie!! go count some bits, stay hydrated, and remember: every 1 matters 🍓✨

this came from source [FIXME: source], dated 01/03/2018, and it lives in the BITCOUNT(3G) manual. mwah 💋