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More internal optimizations on my #Dreamcast and #Gamecube game engine: • 2D Perlin noise generation is now 67% faster (59 cycles per sample) • 3D Perlin noise generation is now 40% faster (97 cycles per sample) • Further optimized worst-case heap allocations, bringing the total improvement to 40x since... before my last post (yeah, allocations were that inefficient for a while) Perlin noise generation is one of the game's most resource-intensive functions. Since the Dreamcast doesn't support conventional SIMD, I optimized Perlin noise using purely scalar code. The Dreamcast's SIMD capabilities are mainly tailored for graphics, with matrix-vector multiplication and dot product being the only SIMD instructions available. These optimizations are invisible to the player, so in the meantime, here's an interesting spot I discovered while testing the game on the Dreamcast. #retrogaming #indiegamedevshow more

A Flock of Meese

6,960 subscribers

23,084 views • 1 year ago •via X (Twitter)

Gaming Education Science & Technology #Dreamcast #Gamecube

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11 Comments

Steampunk1 year ago

How exactly is the "ambient occlusion" handled in this engine? does it intelligently swap out textures based on surrounding blocks? it's so clean it almost looks per pixel but I imagine you don't have the overhead to do that in software, right?

A Flock of Meese1 year ago

Ambient occlusion is handled with vertex colors.

Byte Wise1 year ago

Is this fucking Minecraft on GameCube? You're a mad man, I love it

A Flock of Meese1 year ago

This is the Dreamcast version. Here’s how it looks on the GameCube:

Melody1 year ago

2 questions Do you plan to add like greedy meshing or smth if u havent And are you changing the color of the sides of grass (Im also making a mc clone in turbowarp :3)

Pablo M.1 year ago

I love your work. Little by little you are pushing the Dreamcast capabilities to the limit. How many polygons do you reach in this post?

A Flock of Meese1 year ago

130,000 vertices, right up to the VRAM limit.

SlingerGames1 year ago

This continues to impress! Amazing stuff!

thecraftsgt1 year ago

Man this runs better than my settup 😮

Pixel Art1 year ago

Is this video on DC or GC? Either way, it's impressive.

A Flock of Meese1 year ago

This video is on Dreamcast. Here's how it looks ont he Gamecube:

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A Flock of Meese

294,839 views • 1 year ago

In my #Minecraft-like engine, mountains with this level of scale and detail were once out of reach on the #Dreamcast. But with recent optimizations, they're now a reality: • The renderer is now 19% faster, achieving near-peak efficiency at 30 cycles per vertex (up to 6.67 million vertices per second) • Aggressive occlusion culling reduces polygon counts by over 50% • Lighting and meshing is now 73% faster • Terrain generation is now 6% faster • Optimized frustum culling #indiegamedev #gamedev #Gamecube

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A Flock of Meese

47,600 views • 1 year ago

Do diffusion models want Perlin-like noise? SDXL-turbo spends the first blocks simply creating Perlin-like noise of different frequencies, amplitudes and orientations. The model ignores the prompt conditioning during these layers.

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59,764 views • 1 year ago

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A Flock of Meese

15,963 views • 1 year ago

Big upgrade to my voxel engine: the height limit is now doubled. This means taller mountains, deeper valleys, and way more breathing room for the terrain generator to go wild. This change is PC-only for now. The Gamecube and Dreamcast are still capped at the original limit. They lack the horsepower for the extra height without further optimizations. The PC can handle more, so it's getting more. Simple as that.

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A Flock of Meese

19,888 views • 11 months ago

So I updated "Water" ! The sim is running in a single CPU thread. It should work faster now, rendering optimized & WebAssembly SIMD support! But seems like the speedup with wasm is only limited because of the heavily scattered memory access pattern 😇

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40,920 views • 1 year ago

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A Flock of Meese

584,954 views • 1 year ago

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A Flock of Meese

16,427 views • 1 year ago

Added a simple Perlin noise wave function to the mud to add some extra movement! Combining this with the snow system and plant interaction system you can get some very dynamic environments! #RobloxDev

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28,471 views • 2 years ago

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A Flock of Meese

80,364 views • 1 year ago

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