Search found 28 matches

by DavidAllyn68
Mon Dec 16, 2013 3:02 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

Ah.. I see... Color would be a body object property/field. How about if color stays as body property, however brightness/saturation is a function of the velocity/proximity?
by DavidAllyn68
Wed Nov 13, 2013 7:20 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

Either based on "attraction" or distance, as one body gets closer to another body, it turns blue (or one hue) the further away it gets from any body it turns red (or another hue). If you combine that with "brightness" or saturation based on the velocity of the body (i.e. the fast...
by DavidAllyn68
Mon Nov 11, 2013 1:55 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

oooo. hue dependent on proximity to another body! I could do some pretty cool stuff with that!
by DavidAllyn68
Mon Nov 04, 2013 9:02 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

No worries... life gets in the way sometimes. I'm just glad you built something that I can play around with. :D (Imagine that spiral with different colors or velocity-sensitive line brightness/saturation)
by DavidAllyn68
Thu Oct 31, 2013 4:41 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

60 body Spira Gira... Gravity Fun at TestTubeGames: [ForceG: -2,Qual: 1,Zoom: 0.2,xSet: 0,ySet: 0],[x0: 0,y0: 0,vx: 0,vy: 0,t0: 0,who: 1,m: 180000], [x0: 1500,y0: 0,vx: 0,vy: -4,t0: 0,who: 2,m: 2], [x0: 1491.78284305,y0: 156.7926949,vx: 0.41811385,vy: -3.97808758,t0: 0,who: 2,m: 2], [x0: 1467.221401...
by DavidAllyn68
Mon Oct 28, 2013 8:19 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

Hey guys, hope all is well. Here's a celtic knot thingy... :) Gravity Fun at TestTubeGames: [ForceG: -2,Qual: 1,Zoom: 0.15,xSet: 0,ySet: 0],[x0: 0,y0: 0,vx: 0,vy: 0,t0: 0,who: 1,m: 300000], [x0: 600,y0: 0,vx: 0,vy: -9,t0: 0,who: 2,m: 10], [x0: 374.09388112,y0: 469.09888948,vx: 7.03648334,vy: -5.6114...
by DavidAllyn68
Thu Sep 26, 2013 4:23 pm
Forum: Gravity Simulator
Topic: Calling all Suggestions
Replies: 124
Views: 145560

Re: Calling all Suggestions

Just my two scents :)... I would think the direction you would take would have to do with the primary purpose of the simulator. As a game... an engine for creating art and exploring the effects of gravity... I wouldn't think that "hyper" undo (i.e. saving every state of every change) would...
by DavidAllyn68
Wed Sep 25, 2013 4:43 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

A flower in a circle with 3 orbiting bodies . This was completely trial and error. I'm sure there's a mathematical way of arriving there since it seem that it's not a coincidence that the perigee of the "flower" asteroid's orbit is in-line with a planet and the sun every time. Gravity Fun ...
by DavidAllyn68
Tue Sep 24, 2013 5:18 pm
Forum: Gravity Simulator
Topic: Gravity Art Megathread
Replies: 61
Views: 189235

Re: Gravity Art Megathread

I want to say I did some nasty math -- but it was just a happy accident that I refined to be stable.
by DavidAllyn68
Tue Sep 24, 2013 5:09 pm
Forum: Gravity Simulator
Topic: N Body Orbits
Replies: 6
Views: 9407

Re: N Body Orbits

I've tried many, many times to make a N-Body orbit work (using Gravity Games as the engine), but they almost always become unstable after about 5 or 6 "cycles". It could be that there are inaccuracies that are introduced from rounding somewhere causing one body to have a slightly higher ve...