Millions of HLSL Particles in XNA

[bosox20051]

pffft FAKE! Real developers could do this in ASSEMBLY!

If this is real I demand to see a deterministic automaton defining the state of the program during execution. At the very least you owe us a regular expression or some sort of conversion between the two.

[Novotnajz]

I tried too recreate your amazing project, but I'm not finished yet. This is amazing oh god and you killed this =x. Ahh so bad. Tried in XNA 4.0, so uncompleteable

[ryanz400]

(!!!FORRRRRRRrrrrrrrrrrrr.....­.......... ) haha



[CodyDuncan1260]

P.S. I'd really like to see the particular values and calculations for attraction forces in this video. I tried, but it's hard to replicate how organic this video makes everything look.

[CodyDuncan1260]

I tried to recreate this project so source code could be available and so people could play around with it (because it looks rather fun). I posted it on SourceForge. Just do a google search for "XNA particles sourceforge" (without quotes) and it should be the first couple of links. Hope everyone has fun with it, and thanks to dhscaresme for inspiring me to work on it.

I really appreciate you posting this video, so thanks!

XNA particles sourceforge

[AtmosMr]

@CodyDuncan1260 Cody, great reproduction. Another ask though is you download only have the .xnb files. I don't use XNA .... would you upload the original .fx files?

..and well done and thanks for sharing.

[colinshark]

You're maxing out the precision of a floating point number, which appears as lines in the simulation.

Cool.

[SecondCocacola]

Heres my theroy on how he coded this, he has a particl sprite set, with a class for rendering each one, and loops and draws one million particles to it. left click ativates AI chase, etc,...

[TheRealAIBrain]

Beautiful !

[AtmosMr]

Beautiful work. Very impressive. Are you using point sprites to render the particles? Would you be willing to share the HLSL code? Michael

[grandpause]

Sweet demo. Maybe add one more line of code: hide_mouse();

:)

[PoorOldRisingSun]

any chance of sharing the source somewhere? I'd love to know how you've done this and play with the code myself. All my particles are sprites, which is fine until I want more than a few thousand of them.

[afallenapple]

The second that main beat kicked in, I was like :o

Awesome :)

[Novotnajz]

please i want to learn more in xna -.- sourcee pls :(

[NemoKradXNA]

That is nice dude, are they 2D or 3D particles? Impressive either way :)

[dhscaresme]

@NemoKradXNA it is 3D, but the particles are restricted to the xz-plane. if you calculate positions for the y (depth) dimension as well you can get them to bounce around inside a cube or a sphere, make a 3d fountain, etc. etc. y is just fixed at 0 in the video.

[NemoKradXNA]

@dhscaresme OK cool. I have just done a render of a million particles (have posted the clip too) but my fps is a little less than yours, any tips on where I could improve my perf?

[Novotnajz]

-.- but remember for link to dwnld the project :D incredible ;)

[Novotnajz]

thx for reply

[DrJBN]

That is just holy s**t beautiful..

[Novotnajz]

pls link to download your program -.- maybe source code?:D plssssss

[dhscaresme]

@Novotnajz no links to the program right now, sorry. during spring break I might be able to put it up somewhere and I'll post the link if I can. The song is Crystal Castles Untrust Us and I first heard it in a mtn. bike movie (new world disorder 9 or 10?). hope they continue to let people use their music. Check out their youtube page.

[Einhanderkiller]

@dhscaresme Did you post it yet?

[Novotnajz]

name of song please? remix ye? pls link to download -.-

[Novotnajz]

great work

[dhscaresme]

Thanks for the compliment, but it is simpler than you might think. Just 100 or 200 lines of code in all, including the shaders, and the math is maybe 4 lines of simple algebra. Just google around for hlsl and stateful particle engine and you'll be well on your way!

[sdtuu]

Stuff like this makes me so miserible! I'll never EVER be this good! Well done mate this work is stunning!