SketchyPhysics Alpha

CPhillips

test my architecture... wind shear, snow loads, live loads, tension stress... that kind of thing...

Keep in mind that the physics engine is not designed to be that accurate. Its more of a game physics engine. Maybe you could do a first approximation of stresses and what not. But I think you would need a real engineering software for anything meaningful.

@unknownuser said:

I tested something last night with it... I took the bricks in the terrain test file, and shrunk them down to about the size of a small rock... then copied them over an over and over until there were hundreds and hundreds of them in a cluster hanging in the air waiting on me to drop em... I wanted them to fall all at once and seem to be a fluid pour of small objects... but what I got was a few dropping at a time... by OC'd E4300 couldn't handle it...

This plug-in hasn't been optimized yet and lots of objects will go slow. I expect I can at least double the performance on >100 objects without too much effort.

But the biggest bottle neck is sketchups performance. It was not really designed for moving hundereds of objects dozens of times per second.

Part of your problem may be that you shrank the objects too much. There is an upper and a lower limit to how big and object can be. Objects that are too small wont move.

Chris

CPhillips

Any other comments or feedback?

Has anyone used the SketchySolids toolbar? I am thinking that it is almost worthy of being a separate plugin.

Chris

Mike Lucey

@cphillips said:

Any other comments or feedback?

Has anyone used the SketchySolids toolbar? I am thinking that it is almost worthy of being a separate plugin.

Chris

Hi Chris,

I'll have to lock myself into a room for a couple
of hours with SketchyPhysics and get back on this
one.

Mike

Haggai

Well I just want to say as everyone that this is a really amazing script, I have look around the different possibilities, there is alot that we can do and it realy increase the use of Sketchup, increase our ideas and help us more with our needs.
I know that this is just the begining, and I also know that it will only get better, i will be waiting for it.
I really want to thank you for sharing with everyone.
one question I have for now, is there a way to control how to "grab" the objects in a way that we can for example grab a cmu block and put it on an other one with presision. When I tried they seem to be floating in the air as I carry them? I will keep trying.

Again thank you very much for all the work.

P: Haggai

mateo soletic

Amazing stuff and great work.
After watching the videos
the possibilities are endless.

CPhillips

@haggai said:

one question I have for now, is there a way to control how to "grab" the objects in a way that we can for example grab a cmu block and put it on an other one with presision. When I tried they seem to be floating in the air as I carry them? I will keep trying.

By default the object will try to move only horiziontaly. Hold down CTRL to drag up and down.

There is a tutorial of sorts here:
http://code.google.com/p/sketchyphysics/wiki/Tutorials

Chris

Haggai

I am doing this but what i meant is that even when I lift up the object it is hard to control them, they are like hanging on a string and swinging as i move.

P: Haggai

CPhillips

@haggai said:

I am doing this but what i meant is that even when I lift up the object it is hard to control them, they are like hanging on a string and swinging as i move.

Oh, I see. I tried it so the object moved faster and it didnt work very well. The problem is the object flys around the scene too fast. Say you drag a cube from one side of the screen to the other. Depending on how far out you are zoomed the object can be moving hundereds of miles per hour. If it bumped into anything along the way that object would go flying.

Ill make it adjustable in a future version and you can try it.

And I agree, the controls could be better.

Chris

Krisidious

I found the controls pretty good, I got how to move stuff and throw stuff, and drop it. and I liked the bars...

Whaat

I like this script so much, I thought I'd do a tribute...Indigo style!

Whaat

CPhillips

@whaat said:

I like this script so much, I thought I'd do a tribute...Indigo style!

301 Moved Permanently

(www.sketchucation.com)

Whaat

That looks really cool! It will be nice when we can finally do physics and ray tracing in real time.

otb designworks

"sniff, sniff..........feeling sorry for myself............"

Thanks Chris, you have managed to make the one thing on the planet that makes me regret not having a PC.

Sure sounds like you guys are having a fun time...........

namza

i did that funny work
you need the last version of sketchyphysics http://code.google.com/p/sketchyphysics/wiki/LatestVersion

avance3c.skp

Krisidious

@unknownuser said:

"sniff, sniff..........feeling sorry for myself............"

Thanks Chris, you have managed to make the one thing on the planet that makes me regret not having a PC.

Sure sounds like you guys are having a fun time...........

why not run that Windows Emulator....?

CPhillips

@namza said:

i did that funny work
you need the last version of sketchyphysics http://code.google.com/p/sketchyphysics/wiki/LatestVersion

Very cool. That is the simplest self moving machine I have seen.

Chris

namza

@cphillips said:

@namza said:

i did that funny work
you need the last version of sketchyphysics http://code.google.com/p/sketchyphysics/wiki/LatestVersion

Very cool. That is the simplest self moving machine I have seen.

Chris

i made it afer a lost of test. The problem is that now i CAN'T ( !!) reproduce this machine. It goes with join and groups but all depends of what do i have to join ans what do i have to group ...and in wich order .....

CPhillips

@namza said:

i did that funny work
you need the last version of sketchyphysics http://code.google.com/p/sketchyphysics/wiki/LatestVersion

By the way. I see you made your track out of blocks. That is fine, but you can also just edit the floor. Any staticmesh (like the floor) can be edited at a per face level and will still work.

[url=http://www.sketchucation.com/forums/scf/sas/SketchyPhysics/avance3c-track.skp:33txugzx]avance3c-track.skp[/url:33txugzx]

CPhillips

@namza said:

@cphillips said:

@namza said:

i did that funny work
you need the last version of sketchyphysics http://code.google.com/p/sketchyphysics/wiki/LatestVersion

Very cool. That is the simplest self moving machine I have seen.

Chris

i made it afer a lost of test. The problem is that now i CAN'T ( !!) reproduce this machine. It goes with join and groups but all depends of what do i have to join ans what do i have to group ...and in wich order .....

You can use the joint connection tool to examine the way the joints are connected. In this case each of the 3 cylinders is grouped with a hinge. And the bars are just connected to the hinges.

Joint connections can be confusing at first.

not registered yet

Chris,
That is nothing short of amazing. I'm awestruck. I'm curious as to why and what it took (in general terms) to create this.

Mark

P: marsol

CPhillips

@unknownuser said:

Chris,
That is nothing short of amazing. I'm awestruck. I'm curious as to why and what it took (in general terms) to create this.

Mark

Thanks Mark.

The why is because its fun. I like making things that actually behave the way you'd expect.

What it took was a good physics engine (newton) and a lot of work. I have been working on it on and off for over 2 years. Its currently around 10k lines of ruby but I have probably written and discarded 20k.

Some of that 10k is code that isn't even enabled yet. SketchyReplay for example records animations and features some non-linear editing. Here is an example. Note the camera behavior and the rewind stuff at the end.

Chris