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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Nov 08 10:28 pm)



Subject: Bicycle and poses


flibbits ( ) posted Fri, 25 July 2008 at 8:29 PM · edited Thu, 07 November 2024 at 9:22 PM

Looking for a bicycle and some poses.

I found some for V2 free bike poses: http://www.whatever3d.com/rendo_thumbs/RFS14904.jpg that are for a bike supposedly here in the freebies, but I can't find it.

Found Daz3D bike that claims to allow figures to be conformed to it and then the arms and legs move as the pedals move, but I wonder if that works well or results in decent looking poses.

http://www.daz3d.com/i.x/shop/itemdetails/-/?item=38&spmeta=ap&refid=271299350

Any ideas?



Darboshanski ( ) posted Fri, 25 July 2008 at 8:51 PM

I don't know what type of bike you are looking for but here is a nice free bike (Bottom of page). Sorry no poses I am afraid.

Bike

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flibbits ( ) posted Fri, 25 July 2008 at 9:24 PM

That's a decent bike.  Free is a good price.  Thanks.

Still need some better poses than the ones I linked.



nruddock ( ) posted Fri, 25 July 2008 at 9:56 PM

Attached Link: http://www.renderosity.com/mod/freestuff/index.php?user_id=66352

That's the bike the poses are for. Noggin mentions zippo on the details page for the poses, the correct username is actually Zippo_ which is one reason you might not have been able to find the bike by searching (the other being that "bike" doesn't appear in the name or text).


flibbits ( ) posted Fri, 25 July 2008 at 10:19 PM

Thanks

Turns out it's the same bike paganartist linked.

The poses work better with that bike, but the poses are pretty bland.



Anthony Appleyard ( ) posted Sat, 26 July 2008 at 12:36 AM

You would have to parent him to the seat, and set his arms and legs IK-on, and then IK-parent his hands to the handlebars and his feet to the pedals.


flibbits ( ) posted Sat, 26 July 2008 at 2:54 PM

I'll try it.



ockham ( ) posted Sat, 26 July 2008 at 3:28 PM

Mamachari is a beautiful bike!

Hint: the IK method will work, but for animation you'll need to insure that the
pedals are counter-rotating against the crank.  For instance, if the crank goes
from 0 to 3600 degrees (ten turns) during your animation, you'll need to make
each pedal go from 0 to -3600 degrees.  (Linear interpolation on all of them)

Otherwise the feet will wrap around the pedals, creating a bloody mess,
and you'll need to bring an ambulance into the scene.

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flibbits ( ) posted Sat, 26 July 2008 at 9:03 PM · edited Sat, 26 July 2008 at 9:10 PM

Maybe I'm doing something wrong.

Here's what I do:

Set IK on for hands and legs.

Parent toes or foot to pedals (left to left and right to right)

When the pedals turn, the feet are glued to the pedals and the whole character rotates.  So far so good.

Parent hands to the front unit (the bike doesn't have left and right handle bars.) 

Now when I rotate the pedals the feet are no longer stuck to them, they move without the feet.

Same if I parent the hip to the seat.

It seems either or.  I can parent the feet to the pedals but then rotating the pedals (actually the pedal arms as if he were riding the bike) the figure rotates off the seat.  Parenting the hands to the bars or hips to seat loses the connection of the feet to the pedals.

Maybe IK-Parent is something different from plain parenting.

It does work as far as the hands and feet connected to the pedals and handle bar, then I can Y tran his hips to get poses that look more natural for things like the pedaling when you stand up off the seat.



flibbits ( ) posted Sat, 26 July 2008 at 9:05 PM

The other question is for a still image is it possible to make the wheels appear to be spinning.  I remember once trying motion blur for a still image for a rotating helicopter blade, but could never get it to work.



Darboshanski ( ) posted Sat, 26 July 2008 at 9:18 PM

Quote - The other question is for a still image is it possible to make the wheels appear to be spinning.  I remember once trying motion blur for a still image for a rotating helicopter blade, but could never get it to work.

This maybe something you can do in post work. I will take my image into my paint program and brush in a motion type blur.

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ockham ( ) posted Sat, 26 July 2008 at 10:02 PM · edited Sat, 26 July 2008 at 10:05 PM

Are you counter-rotating the pedals as I suggested?

If so, you may be asking Poser to calculate too many things at once.
I doubt that the hands really need to be parented, unless you're going to
do a lot of steering .....  you can set them on the bars manually for
a straight-line ride.

Poser's motion blur is probably inadequate because it will only
blur between two keyframes.  (Only part of the circle, in other words.)
If you want that much of a blur, you should be able to render an intermediate
frame, somewhere in the middle of the motion, with the 3d Motion Blur checked.

Here's an example of a motion-blurred propeller.
http://sharecg.com/v/26314/poser/Toon-Airplane

If you want a complete circle blur, you'll probably have to do it in postwork.

My python page
My ShareCG freebies


Anthony Appleyard ( ) posted Sat, 26 July 2008 at 11:10 PM

To **flibbits:
**I don't get that sort of bug when I pose people. Which version of Poser do you have? Which human character are you using in those bicycling poses?

You should also ordinary-parent him to the seat of the bicycle.

If switching IK on for his arms is automatically switching his legs to IK-off, something strange is happening.


flibbits ( ) posted Sun, 27 July 2008 at 12:20 AM

It's not.  It's when I select the bike pedals and rotate them that either the hands or feet disconnect.

If I pose the character, then the feet and hands stay connected to the pedals and handle bars.

Can someone explain how to add blur in photoshop?

Can someone explain how to blur in Poser, how to blur with an intermediate frame as was suggested?



ockham ( ) posted Sun, 27 July 2008 at 1:12 PM · edited Sun, 27 July 2008 at 1:23 PM

Okay, I've tried the bike with my favorite girl.  In stages:

  1. Turned off IK.
  2. Posed her on the bike.
  3. Turned IK back on for the feet.
  4. Parented her feet to the pedals. (Note: the pedals are labeled backwards: pedal_l goes
    with the right foot, pedal-r goes with the left foot.)
  5. Set her "Figure Parent" to the frame of the bike.
  6. Animated the crank, wheel and pedals, with counter-rotation.

I didn't parent her hands, because that's unnecessary.

The feet and legs move with the crank just fine, but the body above the hip
stays in the same place when the bike moves forward, resulting
in a weird super-stretch.

I've seen this problem before; it began with Poser 6.  I don't know
if there's any solution.  Figure parent works well enough when
no IK is involved, but when IK is on, Poser can't handle both things at once.

I suspect the only solution is to keep the bike in one place and move
the landscape instead.

Here's a short clip of the pedal movement:
http://ockhamsbungalow.com/Movies/bike_.swf

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ockham ( ) posted Sun, 27 July 2008 at 1:21 PM · edited Sun, 27 July 2008 at 1:21 PM

file_410695.jpg

Here's a motion-blur render. To get this, I squeezed down the action into 3 frames.  In other words, I set frame 3 to the point where the pedals had completed about a half-revolution, and the wheels in proportion.  Then I rendered frame 2 with the 3d Motion Blur box checked.

(I suspect you can do a lot better than this in postwork without too much trouble!!!!)

My python page
My ShareCG freebies


flibbits ( ) posted Sun, 27 July 2008 at 1:41 PM

Photoshop post work motion blur is very easy and is better.



Anthony Appleyard ( ) posted Sun, 27 July 2008 at 4:13 PM

Make sure that her arms are IK-off, or that her hands are IK-parented to her BODY and not to the UNIVERSE.


flibbits ( ) posted Mon, 28 July 2008 at 12:21 AM

"Okay, I've tried the bike with my favorite girl.  In stages:

  1. Turned off IK.
  2. Posed her on the bike.
  3. Turned IK back on for the feet.
  4. Parented her feet to the pedals. (Note: the pedals are labeled backwards: pedal_l goes
    with the right foot, pedal-r goes with the left foot.)
  5. Set her "Figure Parent" to the frame of the bike."

5.  Is figure parent the body of the figure selected, then parent to the body of the bike?  There is no body part called FRAME on the bike.

The figure I use is Hiro.  Followed the steps but parent his right toes and left toes to the left and right pedal, then select his body and parent it to mamachari which is the bike frame.

But if I turn the pedal cranks the feet don't stick to them, or if I've parented the feet after the body then the whole Hiro body starts rotating with only the feet stuck to the pedals.



Anthony Appleyard ( ) posted Mon, 28 July 2008 at 3:48 AM

When IK-parenting an IK-goal of an IK-chain which is set IK-on, mouse Object**, Change Parent.** If when you do that, the Change Parent menu entry is faint (= greyed out), then you are not on an IK-goal, or its IK-chain is set IK-off.

In huan models that I have used, the IK-goal of a leg is the foot, not the toe.

Mousing Figure, Change Parent always changes the main parentage of the figure's root segment, wherther or not you are on one of that figure's IK-goals.


flibbits ( ) posted Mon, 28 July 2008 at 7:07 PM

There is no such option as Figure, Change Parent.  The only option is Figure, Set Figure Parent.



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