this post was submitted on 02 Feb 2024
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[–] teft@lemmy.world 141 points 1 year ago (2 children)

The human eye can only see 1 frame per 18 hours so I consider this reasonably fast.

[–] GBU_28@lemm.ee 50 points 1 year ago (1 children)
[–] BassTurd@lemmy.world 10 points 1 year ago

Nah, just The Lorax.

[–] Laticauda@lemmy.ca 15 points 1 year ago

You may need to consult a doctor.

[–] Num10ck@lemmy.world 101 points 1 year ago (1 children)

i once took 12+ hours to raytrace on an 8mhz Amiga only to realize that it didn't have any light sources and so was pitch black.

[–] istoff@lemmy.world 15 points 1 year ago

I share that memory. At least twice

[–] Ensign_Crab@lemmy.world 38 points 1 year ago

It's not that the bear dances well, it's that the bear dances at all.

[–] resketreke@kbin.social 34 points 1 year ago (1 children)

60 frames per 42.5 days, playable.

[–] lauha@lemmy.one 6 points 1 year ago* (last edited 1 year ago) (1 children)

You could get a totally playable fps if you play in geological time scale

Edit. Not really fpS as s stands for second, but ...

[–] e0qdk@kbin.social 6 points 1 year ago

Frames Per Stratum

[–] slaacaa@lemmy.world 32 points 1 year ago

Nice, hitting that sweetspot at 42 fpm (frame per month)

[–] rockSlayer@lemmy.world 29 points 1 year ago (1 children)

I mean that's pretty fucking impressive imo. I figured a RT frame would take days to render on hardware that old

[–] VindictiveJudge@lemmy.world 2 points 1 year ago

And back when that computer was contemporary, it would have. We've learned a hell of a lot since Nvidia announced they had cracked real-time ray tracing all those years ago.

[–] PrinceWith999Enemies@lemmy.world 27 points 1 year ago (1 children)

This computer is illegal in Florida, Texas, and Russia.

[–] khannie@lemmy.world 9 points 1 year ago (1 children)

Is this true? Sounds like there's a story you're not telling us

[–] PrinceWith999Enemies@lemmy.world 41 points 1 year ago (1 children)

It’s a rainbow thing 🏳️‍🌈

[–] khannie@lemmy.world 14 points 1 year ago

Ha! You got me.

[–] cmnybo@discuss.tchncs.de 27 points 1 year ago (1 children)

Now write it in Z80 assembly instead of basic and see how much faster you can get it to run.

[–] BearOfaTime@lemm.ee 7 points 1 year ago

So true.

When I switched from basic to assembler on a Trash 80 Model 1, it was truly night and day

[–] SatanicNotMessianic@lemmy.ml 26 points 1 year ago

It’s like playing chess by mail, but with Doom.

[–] Jarmer@slrpnk.net 13 points 1 year ago

700 years worth of compute to do about an hour of gaming that I just did on my pc at home in realtime ... damn.

Did I math it right? I was averaging about 100 fps in hogwarts for about an hour.

[–] Poggervania@kbin.social 10 points 1 year ago (1 children)

tbf that’s probably on par with the performance Cyberpunk 2077 was doing on release

[–] fixerdude2@lemmy.ca 8 points 1 year ago (1 children)

Still remember loading games from cassette tapes on this thing and the Z80.

[–] funkless_eck@sh.itjust.works 4 points 1 year ago

"is it still loading or did it fail?"

ah, plus ça change...

[–] hakunawazo@lemmy.world 5 points 1 year ago

Since my dedicated hybrid graphics card was broken, my gaming experience is almost the same as with this one.

[–] Donjuanme@lemmy.world 5 points 1 year ago (1 children)

What resolution? I'm guessing 64x48?

[–] bjoern_tantau@swg-empire.de 16 points 1 year ago (1 children)

The strain of going from a 32 x 22 image to a 256 x 176 one is evident in how much longer this secondary image took to render. From 879.75 seconds (nearly 15 minutes) to 61,529.88 seconds (over 17 hours). Luckily, some optimisations and time-saving tweaks meant this could be brought down to 8,089.52, or near-ish two and a half hours.

Those are really reasonable values. I guess my laptop would take that long to render a 4k image as well.

[–] pixeltree@lemmy.blahaj.zone 3 points 1 year ago (1 children)

Really depends on the complexity of the frame being rendered for how fast your laptop can render it

[–] frezik@midwest.social 1 points 1 year ago (1 children)

Ray tracing speed primary depends on the number of pixels, not the complexity of the scene.

[–] pixeltree@lemmy.blahaj.zone 2 points 1 year ago* (last edited 1 year ago) (1 children)

The complexity of your scene makes a huge difference. If your scene has fewer things for light to bounce off of, doing the ray tracing is much faster

(Source: I do blender renders with cycles)

[–] frezik@midwest.social 2 points 1 year ago (1 children)

So I'm not exactly sure how Blender implements this. There can be a few details that can make a huge difference. Just for starters, is Blender rendering 100% ray tracing here, or is it a hybrid model with a rasterizer. Rasterizers tend to scale with the number of objects, while ray tracing scales with the number of pixels. A hybrid will be, obviously, something in between.

Then there is how it calculates collisions. There is a way to very quickly detect collisions of AABB boxes (basically rectangles that surround your more complicated object), but it takes a little effort to implement this and get the data structures right. You can actually do Good Enough sometimes by matching every ray to every AABB, and then you do more complex collision checking against what's left, but there's a certain scale where that breaks down.

Blender is generally very well done from what little I know of it, but I'm not sure how it handles all these tradeoffs.

[–] pixeltree@lemmy.blahaj.zone 1 points 1 year ago

So, as far as I know the cycles engine does ray tracing until it hits a noise threshold, then does ai denoising for the final cleanup. You can see where the more visually complex parts of your render are, because it will take a lot longer to render to a less noisy state. I don't know specifics of how it works under the hood, but given how complex parts of your image take longer to tender to an acceptable threshold than simpler parts it seems obvious to me that render time scales with complexity.

[–] bandwidthcrisis@lemmy.world 4 points 1 year ago (1 children)
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[–] horsey@lemm.ee 0 points 1 year ago

This is what it was like using 3D programs on an Amiga in the late 80s or early 90s. One image took hours and hours to render. 5-6 hours would be a short one, usually it was more like 12.

[–] metaStatic@kbin.social -2 points 1 year ago

How many btc per decade is that?

[–] SharkAttak@kbin.social -3 points 1 year ago (3 children)

I can't help to think that all that amount of effort could be better spent.

But where’s the fun in that?

[–] glowie@h4x0r.host -2 points 1 year ago* (last edited 1 year ago)

I was thinking the same sort of thing. What'd I'd kill for the time to spend on useless shit heh.