3 ms·

Nice! p.s. I'm only seeing still images for 20 seconds, which I guess are supposed to be moving?

nimbleal 5y ago
I posted this but I'm not the author; I don't know if he visits HN or not. I see videos on my desktop — perhaps a browser issue?
- Slackermanz 5y ago
  > I don't know if he visits HN or not I guess I do now!
  - Quequau 5y ago
    Perhaps now is the time to promote /r/cellular_automata/ https://www.reddit.com/r/cellular_automata/ https://www.reddit.com/r/cellular_automata/
Slackermanz 5y ago
It's my first website/blog, so I may have misconfigured something, or maybe it's an issue with the self-hosted video player. I'll look into it now!
- abetusk 5y ago
  This is great work. I'd love to see a blog post detailing some of the optimizations you did to speed this up. Presumably you octree/voxel segmentation to re-use already summed regions of the CA? I'd also love to see some 3D MNCAs...
  - Slackermanz 5y ago
    I'll add that to the list of pending posts! For the most simple MNCA implementations, I don't use any special optimizations. It's essentially just brute-force naive convolution. That said, some of the more advanced models I've made use up to 48 neighborhoods. For those, I split the neighborhoods into 'Width-1' rings for each 'Radius' value, and then assemble the final neighborhoods by referencing some combination of those rings. For the 'RGB-SMNCA' models with a maximum Radius of 10, this means that I can reduce the total texelFetch() calls from a maximum of 163348 = 16,704 (!!!) down to 13348 = 1044. These numbers come from: ( Neighborhoods * Color Channels * Radius-10 Neighbor Count ) 3D (S)MNCAs are something I certainly plan on developing, and will likely implement after I'm finished with the headless_engine branch of VulkanAutomata, which will hopefully (finally) allow for a proper cross-platform compatible application.
Slackermanz 5y ago
Regarding the video loading, it's really unclear what the issue might be. I have a couple of suspects though... - Video resolution is larger than 1920 × 1088 ( https://www.caniuse.com/?search=video https://www.caniuse.com/?search=video > Known Issues ) - The videos contain no audio track ( https://wordpress.org/support/topic/mp4-h264-video-doesnt-always-play/ https://wordpress.org/support/topic/mp4-h264-video-doesnt-al... ) Anyone else have ideas? Other than that, I'm not sure. I've added direct media links under each video - hopefully that works until I can try some fixes.

I posted this but I'm not the author; I don't know if he visits HN or not. I see videos on my desktop — perhaps a browser issue?

Slackermanz 5y ago
> I don't know if he visits HN or not I guess I do now!
- Quequau 5y ago
  Perhaps now is the time to promote /r/cellular_automata/ https://www.reddit.com/r/cellular_automata/ https://www.reddit.com/r/cellular_automata/

Slackermanz 5y ago

It's my first website/blog, so I may have misconfigured something, or maybe it's an issue with the self-hosted video player. I'll look into it now!

abetusk 5y ago
This is great work. I'd love to see a blog post detailing some of the optimizations you did to speed this up. Presumably you octree/voxel segmentation to re-use already summed regions of the CA? I'd also love to see some 3D MNCAs...
- Slackermanz 5y ago
  I'll add that to the list of pending posts! For the most simple MNCA implementations, I don't use any special optimizations. It's essentially just brute-force naive convolution. That said, some of the more advanced models I've made use up to 48 neighborhoods. For those, I split the neighborhoods into 'Width-1' rings for each 'Radius' value, and then assemble the final neighborhoods by referencing some combination of those rings. For the 'RGB-SMNCA' models with a maximum Radius of 10, this means that I can reduce the total texelFetch() calls from a maximum of 163348 = 16,704 (!!!) down to 13348 = 1044. These numbers come from: ( Neighborhoods * Color Channels * Radius-10 Neighbor Count ) 3D (S)MNCAs are something I certainly plan on developing, and will likely implement after I'm finished with the headless_engine branch of VulkanAutomata, which will hopefully (finally) allow for a proper cross-platform compatible application.

Slackermanz 5y ago

Regarding the video loading, it's really unclear what the issue might be. I have a couple of suspects though... - Video resolution is larger than 1920 × 1088 ( https://www.caniuse.com/?search=video https://www.caniuse.com/?search=video > Known Issues ) - The videos contain no audio track ( https://wordpress.org/support/topic/mp4-h264-video-doesnt-always-play/ https://wordpress.org/support/topic/mp4-h264-video-doesnt-al... ) Anyone else have ideas? Other than that, I'm not sure. I've added direct media links under each video - hopefully that works until I can try some fixes.