Flame Painter Dev Thread

[xiphirx]

Build 4: http://arse.voidteam.net/Personal/fp4.zip (click to draw)
Build 3: http://arse.voidteam.net/Personal/fp3.zip (click to draw)
Build 2: http://arse.voidteam.net/Personal/fp2.zip
Build 1: http://arse.voidteam.net/Personal/fp1.zip
http://www.escapemotions.com/experiment ... x.html#top

Please, someone, explain what type of math functions or algorithms are used for the trail?

I want to create something very similar to that D:

EDIT: It uses Processing http://processing.org/

And I noticed that the trails spiral into the cursor, but the spiral is jiggly...

[Ginto8]

I haven't really looked at the link, but the first thing I think of when I hear "fire painter" is this: http://en.wikipedia.org/wiki/Computatio ... d_dynamics

[xiphirx]

I haven't really looked at the link, but the first thing I think of when I hear "fire painter" is this: http://en.wikipedia.org/wiki/Computatio ... d_dynamics

That looks a bit off of what the application uses, maybe a bit too complicated for it..

[avansc]

Its just looks like a list of points, where each is attracted to each previous one, with the first one being attracted to the mouse, looks like some random noise is added. no real algorithm.

[xiphirx]

Its just looks like a list of points, where each is attracted to each previous one, with the first one being attracted to the mouse, looks like some random noise is added. no real algorithm.

Okay that sounds right since that's all I observed... So attraction then.... That would be as easy as easing the movement on a vector from one point to another point right?

[dandymcgee]

Its just looks like a list of points, where each is attracted to each previous one, with the first one being attracted to the mouse, looks like some random noise is added. no real algorithm.

Okay that sounds right since that's all I observed... So attraction then.... That would be as easy as easing the movement on a vector from one point to another point right?

Sounds like a good start.

[xiphirx]

Hmm... Actually, looking at the "jigglyness", it seems like he uses the easing from http://www.robertpenner.com/easing/easing_demo.html (choose easeInOutBack)

I'll try to start programing a prototype soon and post results.

[avansc]

Id probably just use the inverse of the gravitational constant, as i suspect that is what is going on there.
1/(gravitational_constant * m1*m1/r^2

r is the distance from the two bodies so dont mess with the sqrt

return m1.x*m2.x +m1.y*m2.y;

something like that.

ps: happy new new year folks.

[xiphirx]

Sorry, idiot terms please? lol I didn't understand all of that D:

What do m1 and m2 represent? and where do I use this equation, to move points to one another?

[avansc]

Sorry, idiot terms please? lol I didn't understand all of that D:

What do m1 and m2 represent? and where do I use this equation, to move points to one another?

http://en.wikipedia.org/wiki/Newton's_l ... ravitation

altho i would apply only the force to the bodie "following"

[xiphirx]

Alright, I started to program my own version. I'll post builds as I finish them :P

http://arse.voidteam.net/Personal/fp1.zip

[thejahooli]

That is awesome. I played with it for about 10 minutes and now I really want to make my own program like this.

[Singleton]

Haha pretty nice application, seeing cool stuff like that is really inspirational, as thejahooli said. Good job

[dandymcgee]

That would make an awesome screensaver.

[xiphirx]

Another build, I think I'm digressing from the original goal, oh well, I think its cool D:

http://arse.voidteam.net/Personal/fp2.zip