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yatchi
@yatchi.bsky.social
it rhymes with catchy

33 / he / spotted hyena / bi / việt 🇻🇳 / learning vi+zh / dj

@yatchiyena on the other place
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https://yatchi.neocities.org
look at how CUTE @demon-sushi.com drew me
December 1, 2025 at 11:37 PM
me thinking about christmas

me thinking about gay reindeer in sleigh bell harnesses
November 29, 2025 at 12:16 AM
seeking help with furrey anatomy. part of me thinks i should have spent more time trying harder before asking for help. but the other part of me wants to what to prioritize because otherwise i'll just download a million books
November 16, 2025 at 6:37 PM
i couldn't get "iron helps us play!" from the simpsons out of my head so i just had to make (chinese) liver and (green) onions
November 10, 2025 at 2:32 AM
sorry to be a debbie downer but everything in this thread is just standard chinese transliteration stuff. it defaults to characters with nice meanings. these transliterations look perfectly standard to me, any nice meanings are just happy accidents
November 5, 2025 at 9:10 PM
theory. anyway, i did encounter this passage before i started reading the book and i find it very moving. i think us queers often don't have a clear articulation of what queer liberation should be, and though engels was not trying to articulate that, this is relevant to how we should think about it
November 1, 2025 at 11:46 PM
October 26, 2025 at 5:16 PM
this morning i hiked to eagle falls and eagle lake. the hike to the lake was pretty strenuous, lots of rocky incline. also maybe slightly dumb to do it with no phone but i didn't die and the view was exquisite
October 19, 2025 at 5:01 AM
the pictures i took were on my bricked phone but instead i have sketches
October 19, 2025 at 4:55 AM
breakthrough: the point 90° further above where we raised the equator to defines the minor axis of the ellipse! it's the point on the back side of the prime meridian with the y-value cos γ. and it can also be eyeballed through perspective.
October 4, 2025 at 5:43 AM
two points and a center are sufficient to uniquely identify an ellipse. we can reflect the two points across the center to form a parallelogram. then the ellipse - our equator raised by γ along the meridian at σ - circumscribes that parallelogram.
October 4, 2025 at 12:45 AM
let's raise the equator by γ = 30°. the intersection of the prime meridian and the equator is easy to plot, it's just the point with the y-value sin γ.

this point, and the axis of rotation, both lie on our desired ellipse. we also know its center (the center of our circle).
October 4, 2025 at 12:36 AM
to do this, the axis of rotation will pass through the "90th meridian" - the prime meridian yawed 90°. this can be drawn as an ellipse with the semi-major axis cos σ. the intersection of the 90th meridian and the equator is the axis of rotation
October 4, 2025 at 12:28 AM
if we rotate the sphere by σ = 30° to the right the prime meridian becomes an ellipse, and its semi-minor axis is sin σ. easy enough, we can change σ to whatever we want and draw the ellipse accordingly.

now i want to raise/lower the equator along the prime meridian.
October 4, 2025 at 12:22 AM
the task is to take a sphere with a "prime meridian" (center line of a head) and "equator" (brow line), and rotate (yaw and pitch) it into any orientation. (excluding roll which just requires spinning the drawing.)

head-on these lines are just lines, but any rotation will turn them into ellipses.
October 4, 2025 at 12:12 AM
September 28, 2025 at 5:37 PM
September 23, 2025 at 3:51 AM
32 and feelin' good

art by treatscraft
September 4, 2025 at 4:30 AM
idea for art that could show behind me when i perform (and not a logo to go on lineup posters). would appreciate some input from people who know me, or who know artists that they can refer
August 30, 2025 at 11:00 PM
my spreadsheet of the spotted hyenas of japan hasn't been updated in two years but it should not have been missing this information. concerning
August 30, 2025 at 7:14 PM
August 26, 2025 at 4:20 PM
there have been a lot over the years. i'm just gonna start posting but i do expect the like deficit to be repaid
August 26, 2025 at 5:49 AM
today is frankie knuckles day and i happened to play a track of his yesterday that, to me, captures the promise of house music - unity, equality, and liberation for people of all races, genders, and sexualities - a message i try to carry forward as a dj in frankie knuckles's tradition :3
August 26, 2025 at 4:24 AM
from today's stream
August 25, 2025 at 6:57 AM
WAIT
August 8, 2025 at 5:03 PM