Niallmeister In reply to CorruptJelly [2011-10-06 14:13:10 +0000 UTC]

Hey, thanks! (:

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Niallmeister In reply to Miccool [2011-08-08 14:27:34 +0000 UTC]

hey gurl, how you be?

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Miccool In reply to Niallmeister [2011-08-11 11:19:55 +0000 UTC]

I make stuff. you?

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Niallmeister In reply to Miccool [2011-08-11 13:31:46 +0000 UTC]

I make stuff too! just at a considerably slower rate than you ;_;

I haven't seen much from you on deviantart recently, where've you been.. showcasing it? fluidanimz?

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Miccool In reply to Niallmeister [2011-08-12 05:32:49 +0000 UTC]

Uhh.. haven't released much yet. Might release a big one in the up coming months. Otherwise working on flash games with ppl; most of it's on newgrounds

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Niallmeister In reply to Zodler [2011-05-11 02:05:28 +0000 UTC]

Qoui?

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Zodler In reply to Niallmeister [2011-05-11 02:41:43 +0000 UTC]

You're icon is jumpy.

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Niallmeister In reply to rbogas [2011-03-02 16:22:27 +0000 UTC]

?

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Niallmeister In reply to Thumaszz [2010-12-05 22:20:48 +0000 UTC]

It was really cool, hated the song but seemed to demonstrate the effect quite well lol

And thanks, yeah some of the maths behind it was pretty alien to me when I started too, if you need help with any specifics let me know.

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Thumaszz In reply to Niallmeister [2010-12-05 22:46:23 +0000 UTC]

Yeah, the song had the best soundwaves to show the effect.

Uh, where did you start with SPH, because I've searched some articles about it, read it but there still isn't any connection if you get what I say xD

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Niallmeister In reply to Thumaszz [2010-12-05 23:02:00 +0000 UTC]

Well I dunno if you've come across this paper before but it's probably the best starting point as it's quite programmer-friendly - [link]

If you have read over it before, is there a point where you get stuck on it or do you not really know how /where to start?

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Thumaszz In reply to Niallmeister [2010-12-06 11:42:14 +0000 UTC]

Okay, how do you find neighbors in a particle list, and how does viscosity work?

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Niallmeister In reply to Thumaszz [2010-12-06 16:58:57 +0000 UTC]

Finding particle neighbors is an issue of broadphase collision detection, you're basically just doing circle-circle collision detection with an interaction radius of h. You can do a bruteforce thing where you check every particle against every other but it gets pretty slow very quickly, I actually use a uniform grid and just check neighboring cells. Each particle has an array that I empty every step, then all the particles closer than h distance apart get added to that array. So later on you can just loop through each particle and its neighbors array.

Viscosity is done by directly changing particle velocities. The reaction force is determined from the difference in particle velocities (slow them down if they're moving towards each other very fast and such); also by 2 constants (sigma and beta in the greek alphabet). Sigma is a linear viscosity and beta is quadratic, I guess beta affects the faster moving particles more than the slower ones. To be honest it can get a bit unstable so I prefer just to ignore the beta term and cap the velocities directly. Another thing that affects the force is the q variable they use, it's basically a weighting function that affects it via distance.

..Does that make things a little clearer or am I just confusing you further? ;-;

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Thumaszz In reply to Niallmeister [2010-12-06 18:54:42 +0000 UTC]

I got the sorting thing with particles, I only have no clue how to apply Viscosity and other forces

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Niallmeister In reply to Thumaszz [2010-12-06 19:35:49 +0000 UTC]

Alright, do you have an msn/skype/aim we could talk over?

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Thumaszz In reply to Niallmeister [2010-12-06 19:50:39 +0000 UTC]

Yeah, thomasversteeg@live.nl

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Thumaszz In reply to Niallmeister [2010-12-06 18:41:08 +0000 UTC]

Oh thank you very very much, I still don't get the concept of Viscosity, but first things first. I am trying to make the collision detection. Only flash gives stupid bugs, annoying xD

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Niallmeister In reply to PictoDD [2010-10-10 16:18:38 +0000 UTC]

why do these emoticons exist

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Niallmeister In reply to landoNY [2010-09-23 10:48:11 +0000 UTC]

that's correct, and you're welcome!

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landoNY In reply to Niallmeister [2010-09-24 01:48:19 +0000 UTC]

awesome! good to talk to you again man.

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Niallmeister In reply to keykeyzombie [2010-09-20 23:07:03 +0000 UTC]

UNO

MOMENTO


POR FAVOR!

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Smileygal3 In reply to RubbishBinh [2010-09-07 20:56:09 +0000 UTC]

Your life is null and void. The end.

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RubbishBinh In reply to Smileygal3 [2010-09-20 22:39:00 +0000 UTC]

Lol, who are you to say that?

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Smileygal3 In reply to RubbishBinh [2010-09-20 22:44:50 +0000 UTC]

Who are you to question me?

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RubbishBinh In reply to Smileygal3 [2010-09-20 22:46:14 +0000 UTC]

Why ask a contradicting question?

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Smileygal3 In reply to RubbishBinh [2010-09-20 22:49:24 +0000 UTC]

Why not?

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keykeyzombie In reply to Smileygal3 [2010-09-20 23:00:11 +0000 UTC]

LOL WASTE GASH.

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Smileygal3 In reply to keykeyzombie [2010-09-20 23:02:06 +0000 UTC]

I WISH I KNEW WHAT THAT MEANS. >>

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keykeyzombie In reply to Smileygal3 [2010-09-20 23:02:29 +0000 UTC]

Well that pretty much sums up your life doesn't it?

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Smileygal3 In reply to keykeyzombie [2010-09-20 23:04:01 +0000 UTC]

Mmm, no use in trying to insult if it doesn't make sense to the person you're throwing it at. Unless you're just that easily amused.

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keykeyzombie In reply to Smileygal3 [2010-09-20 23:04:49 +0000 UTC]

Who said it was an insult?

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