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Rivet

@rivetdev.bsky.social
40 followers 50 following 5 posts
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Anaël seghezzi @anaelseghezzi.bsky.social · 17/07/2026
Small update on the Megadrive *rally game* ? I added sprites and did some optimization so CPU is still at 70% usage with a stable 60 fps. I'm a bit disappointed by the sprite width limit per-line. I wanted a lot more dense vegetation but it's not possible with sprites. I'll try other methods.
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Anaël seghezzi @anaelseghezzi.bsky.social · 30/04/2026
Testing hardware sprites with a point based depth-test to on/off them behind polygons. I don't think it's needed for the sides but for future obstacles ? #SGDK #BlastEm
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Anaël seghezzi @anaelseghezzi.bsky.social · 18/10/2025
Side quest in texture land... DMA is on it's knee and interrupts are eating a good chunk of CPU on #SegaMegadrive #SGDK #BlastEm
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Anaël seghezzi @anaelseghezzi.bsky.social · 03/11/2025
Jumping! I want the driving to feel smooth and arcadey like a Sega Rally. I was never a big fan of Wipeout's physics, but I love the graphics obviously :)
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Greg Gallardo @greggallardo.bsky.social · 05/11/2025
More Mega Driving. Mostly so I can avoid thinking about how inefficient my raycaster sprites are. #sgdk youtu.be/6yYsE4X8Fsg
youtu.be
Taking a break from casting rays. Working on Pseudo3D roads again
YouTube video by Greg Gallardo
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Anaël seghezzi @anaelseghezzi.bsky.social · 06/10/2025
Basic road clipping and collision is on, the ship is just two triangles but with dynamic(ish) shadow! It runs pretty well, I'm quite happy with my rasterizer so I will try to add more polygons and scenery #SegaMegadrive #SGDK
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Anaël seghezzi @anaelseghezzi.bsky.social · 25/09/2025
Only 2 colors, but finally some stable 30fps 3d without line-doubling (256x128 or 320x128 pixels) on stock Sega Megadrive :) The bottleneck is the height of the polygons. I exhausted all my ideas so I don't think I can do faster at this resolution.
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Games That Weren't @gamesthatwerent.com · 11/06/2025
Today we reveal a very early prototype of The Lion King for #SEGA #GameGear, dated April 1993. Glitchy, incomplete, and packed with placeholders (plus Lemmings music?!). A fascinating look at this work-in-progress Disney title. www.gamesthatwerent.com/2025/06/the-...
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Shannon Birt @shannonbirt.bsky.social · 24/01/2025
More Megadrive Scaling madness !! Convert scaler to a line scaler rather than column, allows for per line expansion / contraction eg more like mode 7. Speed up the code & have about 50% cpu free running the scaling (cpu calculated) + sprites + audio etc. The target for this is ingame effects !!
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Joey @provolonecinco.com · 14/12/2024
most recent build of my #SNES Baseball engine. I've got a few different pitch types in there currently, and they move pretty well #SNESDev #gamedev #baseball
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dan. @dandandandandan.bsky.social · 18/12/2024
hey guess whos stupid and forgot to turn on a layer this guyyy
Now with the Random White Squares™ from the original
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RadiantNexus Team @radiantnexus.bsky.social · 12/11/2024
Hello, Bluesky! (long overdue, tbh) Meet: Sonic 1: South Island Expedition A ROM-Hack for the Mega Drive / Genesis hardware by RadiantNexus Team.
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Rivet @rivetdev.bsky.social · 10/12/2024
I'm super curious, is the code for this public?
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iProgramInCpp @iprogramincpp.com · 09/12/2024
Tapping the sign as too many people forget
A computer can never be held accountable

Therefore a computer must never make a management decision
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itch.io @itch.io · 09/12/2024
I kid you not, @itch.io has been taken down by Funko of "Funko Pop" because they use some trash "AI Powered" Brand Protection Software called Brand Shield that created some bogus Phishing report to our registrar, iwantmyname, who ignored our response and just disabled the domain
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VAdaPEGA(E)(M3)[!].7z - MAIM ACOUNT @vadepega.bsky.social · 08/12/2024
I couldn't figure out a way to generate the sequence though I was close. FM may be easier to recognize though SMPS would have trouble playing it back due to the speed required to stream the audio. Did get to play around with the format and make some cool transmissions. Might revisit.
Pantufa with Honker on its Tail, sketch received from an SSTV transmission B/W 8excerpt from an experimental macro after converting a SSTV signal into pitch and length values. Very faulty
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Rivet @rivetdev.bsky.social · 08/12/2024
I have news for you
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Rivet @rivetdev.bsky.social · 08/12/2024
weeeeeeeeeeee
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Rivet @rivetdev.bsky.social · 08/12/2024
whooooooaaaa
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Rivet @rivetdev.bsky.social · 08/12/2024
Waddup bluesky
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