Introduction to Maya - Rendering in Arnold
This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
#
1
30-11-2002
, 06:20 PM
Subscriber
Join Date: Nov 2002
Join Date: Nov 2002
Location: Sandnes, Norway
Posts: 99
Mecanical arm w/ rotating base
I tried disabling the freedom of movement for all but the horisontal plane on joint1 only to find out that these settings seems to be inherited by all the other joints.
Then I tried using aim constraint to make the base point/rotate according to the position of a locator on the "ground" wich in turn was point-constrained to the IK handle, with the ...(cant remeber)... Y axis....? connection removed, so that it would always position itself on the "ground" below the IK handle.
This is working (semi) fine. The problem starts when I want the robot (on wich the arm is connected) to move around, and it is tilted. Then the base aim locator remains at the "ground" plane and the base is rotated in a strange way...
The real question is... Is there a way to make the base joint NOT behave like a ball-joint without screwing up the rest of the joint-chain?
-Norleif-
#
2
01-12-2002
, 04:03 AM
Registered User
Join Date: May 2002
Join Date: May 2002
Location: Niagara Falls, Canada
Posts: 5,310
Kurt
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb
#
3
03-12-2002
, 06:15 PM
Subscriber
Join Date: Nov 2002
Join Date: Nov 2002
Location: Sandnes, Norway
Posts: 99
Hand-Drawing ;)
I'm not sure if the picture is visible. Was'nt in the preview...?
#
4
03-12-2002
, 06:42 PM
Registered User
Join Date: May 2002
Join Date: May 2002
Location: Niagara Falls, Canada
Posts: 5,310
You should be able to just parent your geometry, but I would have to see a picture, its better than trying to get the AIM constrates working right.
Steps
1) Have your arm straight up
2) Pick joint 3 rotate it 90 degrees down than set perefered angle (right click on the joint)
3) Straighten up your arm again then add a ikSCsolver from joint 4 to joint 2
(Optional) depending on what you want the movement to be, you can set perefered on joint 2 as well.
That should do it. If you want to move the arm select the ik and test it, Just the joint 4 to 2 will move, If you want to rotate the base just select joint 1.
Hope that helps
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb
Last edited by Kurt; 03-12-2002 at 06:51 PM.
#
5
03-12-2002
, 06:44 PM
Registered User
Join Date: May 2002
Join Date: May 2002
Location: Niagara Falls, Canada
Posts: 5,310
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb
#
6
03-12-2002
, 07:02 PM
Subscriber
Join Date: Nov 2002
Join Date: Nov 2002
Location: Sandnes, Norway
Posts: 99
As for the rig you described, it has only a 2-dimensional freedom of movement as far as the IK handle is concerned. The 3'rd dimension still depend on being operated "manually", like the hydraulic wrecking machine on Scrapheap Challenge (DiscoveryChannel).
If I try to attatch the IK-handle/EndEffector to a motion path.. The arm would bend unnaturally.
Is it really that hard to achive my goal in a simple manner in MAYA? The same rig is a piece of cake to set up in 3DSMax, but the IK in Max is somewhat "jumpy"...
Anyways.. I think I got a solution to the problem, but I can't try it out until later.
-DX-
Posting Rules Forum Rules
Similar Threads
Animating a Robotic Arm
by fabeha in forum Animation replies 0 on 03-08-2012
left arm moves freely when animating
by toby.26 in forum Maya Basics & Newbie Lounge replies 4 on 22-11-2008
gay darlic arm when animating
by toby.26 in forum Maya Technical Issues replies 0 on 16-11-2008
FBIK arm question
by ulaoulao in forum Animation replies 7 on 19-05-2006
IK arm funky problem
by NMFlash in forum Maya Basics & Newbie Lounge replies 2 on 30-05-2005
Topics
New tutorial - Create tileable textures from photos. Photoshop to Alchemist to Maya 2
By David
Site News & Announcements
3
Free Courses
Full Courses
VFX News
How computer animation was used 30 years ago to make a Roger Rabbit short
On 2022-07-18 14:30:13
Sneak peek at Houdini 19.5
On 2022-07-18 14:17:59
VFX Breakdown The Man Who Fell To Earth
On 2022-07-15 13:14:36
Resident Evil - Teaser Trailer
On 2022-05-13 13:52:25
New cloud modeling nodes for Bifrost
On 2022-05-02 20:24:13
MPC Showreel 2022
On 2022-04-13 16:02:13