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Zyn 🦇🔞

@zyntaks.ca

1K followers 790 following 5.6K posts

🔞 24 / 🇨🇦🏳️‍🌈 / Gooey Bat / Weird Horny Stuff + Programming / PFP by: @onedumbmouse.bsky.social / My Hypno Spiral Site: hypno.zyntaks.ca

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Reposted by Zyn 🦇🔞

✨André moraph✨ @andre.moraph.art · 18h

Wolf Pet 🐾

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Zyn 🦇🔞 @zyntaks.ca · 6h

i've OpenMP'd the everloving fuck out of it :)

Zyn 🦇🔞 @zyntaks.ca · 7h

tempted to see if I can move this work to the GPU, but that seems silly considering it'll have to round-trip back to the CPU before drawing anyways

Zyn 🦇🔞 @zyntaks.ca · 7h

wtf, the profiler says my matrix-vector multiplication is taking the most time out of anything, significantly more than even the frustum culling, or sorting every single item

Zyn 🦇🔞 @zyntaks.ca · 8h

in VS2022*

Zyn 🦇🔞 @zyntaks.ca · 8h

Gonna see if I can load it in MSVC for performance testing. I'm using CLion right now but it can't profile on windows.

Zyn 🦇🔞 @zyntaks.ca · 8h

curious what's causing the performance diff tbh. Steps are:
- Cull drawn objects - copy to a buffer if they pass the test.
- Generate drawcalls (one obj can have calls for different materials), writing to a buffer with sorting key
- Sort calls
- Draw
On 1 thread w/ glm (hopefully SIMD is in play)

Zyn 🦇🔞 @zyntaks.ca · 8h

in fact, on my PC with an RTX 2080 TI, I only hit 70FPS or so D:

Zyn 🦇🔞 @zyntaks.ca · 8h

oh no, it improves perf significantly on my macbook but drops the framerate on my PC XD

Likely because the macbook is using a mobile-style GPU architecture and has better single-core perf.

Zyn 🦇🔞 @zyntaks.ca · 10h

I got it working! It’s crazy how much time is saved explicitly avoiding drawing things that won’t be drawn anyways :P

Like, I totally get why, the whole vertex pass still has to run for each of those offscreen meshes, but it’s still wild

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Zyn 🦇🔞 @zyntaks.ca · 13h

Appears to be from GuardTek(?) based on the urn://gt/cp?randomnumber url scheme

Zyn 🦇🔞 @zyntaks.ca · 13h

I’m so so tempted

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Zyn 🦇🔞 @zyntaks.ca · 13h

Just discovered my college has unprotected “checkpoint” NFC tags scattered around, presumably for tracking security guards or something.

They’re not write-protected!!!

They just visit a local URL. :):);):)

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Reposted by Zyn 🦇🔞

✨André moraph✨ @andre.moraph.art · 23d

😵‍💫~

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Zyn 🦇🔞 @zyntaks.ca · 13h

ofc, the framerates could be much better with instancing, but the main thing I'm testing here is culling individual objects, which will usually be distinct models.

Zyn 🦇🔞 @zyntaks.ca · 13h

⚡⚡⚡

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Zyn 🦇🔞 @zyntaks.ca · 14h

Thinking about how my tuition is paying for several TVs in hallways that just display the school logo 24/7/365 for some reason

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Zyn 🦇🔞 @zyntaks.ca · 14h

i uh... i think my renderer's frustum culling is a bit off

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Zyn 🦇🔞 @zyntaks.ca · 16h

tried profiling but apparently the engine spends 99% of its time in a method called "1" :)
makes sense, sure

cursed profiling output where the program is 99.9% occupied by a method called 1.

Zyn 🦇🔞 @zyntaks.ca · 16h

15,000 textured cubes, uninstanced, is enough to bring it below 60 fps :(

Zyn 🦇🔞 @zyntaks.ca · 16h

I’m noticing that if I stress-test my rendering engine on my MacBook, the framerate appears to snap *down* to either 60 or 120, whichever it’s capable of reaching.
Limiting makes sense, but it’s odd to limit it to 60 if it’s somewhere in between. I guess it’s meant to make output look steadier.

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Zyn 🦇🔞 @zyntaks.ca · 16h

In today’s society, electrical connectors are bendy and plumbing connectors are rigid.

That’s why we’re innovating and introducing the world to Really Stiff Cables-

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Zyn 🦇🔞 @zyntaks.ca · 17h

He balloon time 🎈

Zyn 🦇🔞 @zyntaks.ca · 17h

Most miserable guy in existence: “this is how you’re meant to live your life! I’m a real man, a real American, a real go-getter and I wake up at 3am to rise and grind”

Zyn 🦇🔞 @zyntaks.ca · 17h

A certain temperament * fuck meeeeee