CgTalk:FXWars! Catapult! (Trebuchet) Challenge:1

[RobertoOrtiz]

i’ll take a look into this one as well, dynamically diven cataplat. could we send in a playblast, or do u want it all rendered out etc.

I would prefer to have it render out in quicktime, becuase it is a universally acepted standard.
I you cant render the animation, just show sequential jpg files.
-R

[BigJay]

jap? wuz that mean… just a point?

I already have my model built and trying to get something going and already I am ready to tear my hair out.

One question. Can we post a WIP and ask about what’s wrong with my settings in the appropriate software forum just to get to grips with this stuff. Not sure how much help i should ask for and how much I should be doing myself.

This is the first time I even cracked open this door to even look at dynamics.

[WhiteRabbitObj]

Roberto, a little clarification because it seems some people are thinking otherwise than myself: This needs to be a TREBUCHET, not some other sort of siege weapon right? Other weapons would be far, far more easy to simulate than a trebuchet so I just want to make sure we’re all on the same page here as to what the rules are.

[RobertoOrtiz]

Roberto, a little clarification because it seems some people are thinking otherwise than myself: This needs to be a TREBUCHET, not some other sort of siege weapon right? Other weapons would be far, far more easy to simulate than a trebuchet so I just want to make sure we’re all on the same page here as to what the rules are.

FX WAR is the name of the monthly contest. And by war I mean we will try different types of VFX (The ones picked from the Topic thread “CgTalk:FXWars!Topics” )

The main thing for this month is that the weapon has to be a trebuchet.
I included some great sites for reference, so I know you guys can go on the
right direction.

I know this will be challenging, but I know you guys can do this.

-R

[RobertoOrtiz]

jap? wuz that mean… just a point?

I already have my model built and trying to get something going and already I am ready to tear my hair out.

One question. Can we post a WIP and ask about what’s wrong with my settings in the appropriate software forum just to get to grips with this stuff. Not sure how much help i should ask for and how much I should be doing myself.

This is the first time I even cracked open this door to even look at dynamics.

NEW RULE: WIP thread should be posted on the Compositing & Visual Effects forum and should follow the name convention:

FXWars! Catapult! (Trebuchet) : MY NAME

and post a link to it on this thread

-R

[BigJay]

Here is my entry

http://www.cgtalk.com/showthread.php?p=1445498#post1445498

[laluneverte]

I am in as well.
Giving XSI 4 a chance.

Custom coding simulation allowed?

[RobertoOrtiz]

I am in as well.
Giving XSI 4 a chance.

Custom coding simulation allowed?

Go ahead!

The key is that it is a simulation.
-R

[animalunae]

Here’s what I have so far…

http://www.cgtalk.com/showthread.php?p=1445724&posted=1#post1445690

[RobertoOrtiz]

this one is great, in in, i been away from dynamics becouse of work but now that in in vacation i will give it a go…

i have a question does the projectile needs to be a rock or it can be other thinks ¿?¿?¿?

The projectile can be anything you want.
-R

[Clanger]

The projectile can be anything you want.
-R

That’s good I’m planning to use a dead horse!

[RobertoOrtiz]

Guys I need topics for future challenges , if I am going to repat this in the future.

You can post your ideas on this thread:
thread

_R

[Dave3D]

:bounce: Cool I up for this one, my first contest, should be fun. plus puts my mind to some thing over the summer i have one question.

Does it have to be a old fashioned Trebuchet?

I understand that it has to have a the basics of a Trebuchet. A catapult that fires a ball. My question is could i have say a domino rally as the trigger and knock out a logo wall?

Dave

[vrljc]

Roberto-

Just curious. Should we also submit our final maya, XSI, LW, Houdini, etc. files along with the final QT just so you can verify that we did in fact procedurally animate our trebuchet?

-vrljc

[Pufferfish]

Great! If I somehow find time for this im doing it.

-PFish

[rmsmedia]

I immediately jumped on this as soon as I read it…here is my initial test done this morning after finding the challenge…

http://www.rmsmedia.com/img/dynamicTribuchetTest001.mov

just gotta build a wall and destroy it - then model some really nice stuff and parent it…I might do some distance tests with different weights and add a controller to adjust how far the projectile is flung…I’m getting really good distance right now…

[leach]

I think it would be useful to have some kind of guidelines regarding size of catapult, mass of ball/weight and distance thrown,etc…perhaps. Seeing as this is intended to be an accurate physical simulation i think there should be some rules to prevent people comparing how far a tennis ball is thrown to the distance of say, a dead horse! Also is gravity being set to the same value…9.8 i believe.

heres a list of my stats:

missile mass = 1
Weight mass = 10
catapult launching arm mass = 2

Distance travelled = 110 meters

i would be interested in hearing others stats.

leach

[RobertoOrtiz]

:bounce: Cool I up for this one, my first contest, should be fun. plus puts my mind to some thing over the summer i have one question.

Does it have to be a old fashioned Trebuchet?

I understand that it has to have a the basics of a Trebuchet. A catapult that fires a ball. My question is could i have say a domino rally as the trigger and knock out a logo wall?

Dave

Somes like something cool I would love to see.
The main thing for me is to see the basic dynamics of a trebuchet catapult in your animation. As long that core animation is there , anything else you do is fine by me.

-R

[RobertoOrtiz]

Roberto-

Just curious. Should we also submit our final maya, XSI, LW, Houdini, etc. files along with the final QT just so you can verify that we did in fact procedurally animate our trebuchet?

-vrljc

I leave it up to the creator to what he or she wants to post.
I just want to see the animation file.

Honestly, I see this FXWAR as an oportunity for you people to start wrting tutorials for your individual programs, and learn in the process.

-R

[rmsmedia]

i would be interested in hearing others stats.

Mine are almost identical.

Missile = 1
Weight = 15
Catapault Arm = 2

gotta check the distance…