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@sonicfreak94.bsky.social

Software Engineer & Reverse Engineer, PC Enthusiast & Classic SEGA fanboy https://linktr.ee/sonicfreak94

368 Followers  |  247 Following  |  36 Posts  |  Joined: 15.09.2024
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Posts by (@sonicfreak94.bsky.social)

welp, that segagaga translation was blatant machine translation. undoing that repost. shame. good on them for publishing their tools though

28.02.2026 05:42 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I don't usually comment on things but man they were a force to be reckoned with and an inspiration to say the least

23.02.2026 16:46 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

so upset about what happened to bluepoint.

Titanfall on Xbox 360 (๐Ÿคฏ), the love and care that went into Shadow of the Colossus, MGS HD collection, the incredible (but not perfect I know) work on Demon's Souls, all lead to this?

23.02.2026 16:45 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I just asked my gf 'what's up' and she replies '+z is up' and I'm like

โŒ [Loud incorrect buzzer]

15.02.2026 17:21 โ€” ๐Ÿ‘ 22    ๐Ÿ” 2    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1
Sonic Adventure 2 Illustration

Sonic Adventure 2 Illustration

SONIC ADVENTURE 2 #SONIC #SONICTHEHEDGEHOG

15.02.2026 16:47 โ€” ๐Ÿ‘ 5949    ๐Ÿ” 2304    ๐Ÿ’ฌ 46    ๐Ÿ“Œ 9
valentines day card, showing a nokia n-gage and the caption "let's get n-gaged"

valentines day card, showing a nokia n-gage and the caption "let's get n-gaged"

valentines day card, showing a casio loopy and the caption "thinking of you makes me loopy"

valentines day card, showing a casio loopy and the caption "thinking of you makes me loopy"

valentines day card, showing a philips CD-i and the caption "CD-i have a crush on you"

valentines day card, showing a philips CD-i and the caption "CD-i have a crush on you"

valentines day card, showing a pioneer laseractive and the caption "pioneer laseractive"

valentines day card, showing a pioneer laseractive and the caption "pioneer laseractive"

...plus the DLC pack

14.02.2025 15:32 โ€” ๐Ÿ‘ 1441    ๐Ÿ” 614    ๐Ÿ’ฌ 19    ๐Ÿ“Œ 15
valentines day card, showing a dreamcast and the caption "i think you're dreamy"

valentines day card, showing a dreamcast and the caption "i think you're dreamy"

valentines day card, showing a wii u and the caption "life would be pain without U"

valentines day card, showing a wii u and the caption "life would be pain without U"

valentines day card, showing an xbox 360 and the caption "you make my heart do a 360"

valentines day card, showing an xbox 360 and the caption "you make my heart do a 360"

valentines day card, showing a gizmondo and the caption "??? what the fuck???"

valentines day card, showing a gizmondo and the caption "??? what the fuck???"

it's that time of year again

14.02.2025 15:32 โ€” ๐Ÿ‘ 2079    ๐Ÿ” 902    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 28
04.02.2026 19:53 โ€” ๐Ÿ‘ 4120    ๐Ÿ” 2065    ๐Ÿ’ฌ 36    ๐Ÿ“Œ 16
Post image 26.01.2026 05:29 โ€” ๐Ÿ‘ 670    ๐Ÿ” 160    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

heartwarming: former sonic artist returns with new drawing after getting over long-standing burnout with the series

23.01.2026 04:14 โ€” ๐Ÿ‘ 2166    ๐Ÿ” 602    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 0
Video thumbnail
24.01.2026 01:35 โ€” ๐Ÿ‘ 220    ๐Ÿ” 73    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 10
SONIC 3 AND KNUCKLES ILLUSTRATION

SONIC 3 AND KNUCKLES ILLUSTRATION

SONIC THE HEDGEHOG 3 & KNUCKLES #SonictheHedgehog #Sonic

23.01.2026 16:40 โ€” ๐Ÿ‘ 5691    ๐Ÿ” 2143    ๐Ÿ’ฌ 75    ๐Ÿ“Œ 11
SONIC 2 ILLUSTRATION

SONIC 2 ILLUSTRATION

SONIC THE HEDGEHOG 2 (1992) #Sonicthehedgehog #Sonic

21.01.2026 20:09 โ€” ๐Ÿ‘ 3880    ๐Ÿ” 1340    ๐Ÿ’ฌ 24    ๐Ÿ“Œ 5
Sonic the Hedgehog (1991) / Sonic 1 Art piece !

Sonic the Hedgehog (1991) / Sonic 1 Art piece !

SONIC THE HEDGEHOG (1991) #Sonic #Sonicthehedgehog

13.01.2026 16:18 โ€” ๐Ÿ‘ 4244    ๐Ÿ” 1516    ๐Ÿ’ฌ 36    ๐Ÿ“Œ 2
22.01.2026 00:03 โ€” ๐Ÿ‘ 3436    ๐Ÿ” 1142    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 14
My Dreamcast asking me to set the date, and showing the Japanese launch date of 27th of November 1998.

My Dreamcast asking me to set the date, and showing the Japanese launch date of 27th of November 1998.

"Dreamcast", a haiku

Each day he rises.
Asks me, "Is it still launch day?"
"Yes," I lie. "Always."

21.01.2026 19:05 โ€” ๐Ÿ‘ 3456    ๐Ÿ” 1150    ๐Ÿ’ฌ 25    ๐Ÿ“Œ 26

anyway that's it. hope you enjoyed epilepsy debug visualizations and gelatin hydrocity

9/9 (damn!)

18.01.2026 22:59 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

conceptually, splitting polygons on each scanline isn't hard to grasp or even implement. what IS hard is doing it on the Dreamcast. just getting these scenes to draw without crashing the GPU required doubling the vertex buffer size, and it was barely enough. there's room for improvement tho ;)

8/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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epilepsy warning! rapidly flashing colors!

between colors you can see where an opportunity was found to draw whole 16px quads. quads require 16px-aligned texture coordinates, so they can't be used for subdivisions. instead, polygons (2 tris) are used because they lack that UV limitation.

7/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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epilepsy warning! rapidly flashing colors!

now here's a quick and dirty debug vis for hydrocity. each color running horizontally indicates a subdivision and up to 22 draw calls.

subdivision happens when:
- a tile boundary is hit (16px)
- the distortion increment between lines as changed

6/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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hopefully the difference here survives the video compression. scanline subdivision much better represents the curve of the wavy effect on the water's surface here, and at 480p you get a little bit of subpixel detail for subdivision groups (detailed next).

5/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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next up is stardust speedway. honestly the tile skewing solution doesn't seem so bad in this case, but there is definitely a difference in precision when compared to scanline subdivision for those with a keen eye.

4/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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now here's hydrocity with scanline subdivision. the wavy effect is clearly in tact, although there's some visual bugs because I'm pushing right up against some limits here. the effect COULD be adjusted for tile skewing, but it would be less subtle and imo could disrupt gameplay.

3/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 9    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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starting off with hydrocity since the difference is pretty stark. here's tile skewing, which just shifts the top and bottom edges of the tiles. looks pretty goofy in this case.

2/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 11    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

just for fun, I put together some comparison clips of tile skewing vs scanline subdivision, plus some bonus debug visualization ๐Ÿงต

you'll have to bear with me tho. bluesky only allows 1 video per post, so there's gonna be a lot. upside: more yapping, more nerd details.

1/9

18.01.2026 22:59 โ€” ๐Ÿ‘ 23    ๐Ÿ” 9    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
SONIC THE HEDGEHOG CD ILLUSTRATION FEATURING SONIC GOING AGAINST METAL SONIC

SONIC THE HEDGEHOG CD ILLUSTRATION FEATURING SONIC GOING AGAINST METAL SONIC

SONIC THE HEDGEHOG CD #SONICTHEHEDGEHOG #SONIC

17.01.2026 16:15 โ€” ๐Ÿ‘ 5954    ๐Ÿ” 2378    ๐Ÿ’ฌ 54    ๐Ÿ“Œ 5

been asked a couple times: yes, one polygon (two tris; hardware quad UV precision is too low) per scanline works, and I have it working! but this scene touches every single line of the screen and overflows the vertex buffer. with more VRAM (wip) it will be possible

17.01.2026 18:04 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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tile skewing for scanline distortion approximation is now stable. still just the top and bottom edge, but it's better than nothing! will likely look better at 240p as well (this is 480p)

17.01.2026 00:18 โ€” ๐Ÿ‘ 37    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

Prototype Windy Valley

'Prototype Windy Valley' (2018) by ItsEasyActually (SA Mod)
Adds back in the original prototype version of the Windy Valley stage.
https://gamebanana.com/maps/203750

15.01.2026 19:11 โ€” ๐Ÿ‘ 29    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

that was jnmartin84's handywork!

13.01.2026 23:19 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0