|
|
Control over Function Curves
About Truespace Archives
These pages are a copy of the official truespace forums prior to their removal somewhere around 2011.
They are retained here for archive purposes only.
Control over Function Curves // New Users
Post by Hurq // Sep 5, 2006, 12:55pm
|
Hurq
Total Posts: 1
|
I am attempting to use truSpace version 6.6 for forensic animation. When I try to make a car turn the corner, it goes all over the place. I try to manipulate the function curves in the Scene Editor, but if the Y curve is how I want it and I move the handle for motion in the X direction, the Y direction moves as well. I need to separate the X, Y, & Z motion curves from each other but can't figure out how. Please, there has to be a way to do this!
Thank you and best regards,
Hurq |
Post by stan // Sep 5, 2006, 1:10pm
|
stan
Total Posts: 1240
|
not sure if this is what you want ..right click the square where the handle meets the curve ..choose "properties" from the pop up list.. |
Post by trueBlue // Sep 5, 2006, 1:15pm
|
trueBlue
Total Posts: 1761
|
Quote from the Artist's guide:
Look Ahead
This command is used to make an object point forward along its motion path during animation. The program accomplishes this by automatically pointing the object’s Z axis along the path, re-aiming for each frame. To use Look Ahead, select the object to be constrained and then the Look Ahead tool. Objects like text, cameras, and spot lights will work automatically with Look Ahead but other objects will need to be adjusted to work properly (see the Axes tool). The Look Ahead tool requires that the object’s Z axis points to the “front” of the object and that the Y axis points towards the “top” of the object. When an object is under the inuence of the Look Ahead’s command, it is constrained and cannot be rotated manually. Look Ahead and Look At are mutually exclusive operations.
Look Ahead has two modes that can be keyframed: enabled (pushed in) and disabled (default state).
When enabled, the constrained object will orient itself to the path until a “disable” keyframe is set. Subsequently the object can then be keyframed to look ahead again or to look at a target with the Look At tool. Note that keyframing a Look At action on the same frame as Look Ahead was
disabled will not create a smooth transition, rather the constrained object will jerk suddenly to reorient itself. The proper action in this situation is to skip ahead many frames and then keyframe the Look At target. To set Look Ahead parameters, right click on the Look Ahead button.
Look Ahead Control Panel
• Bias: Determines the amount of “overshoot” when the object moves around curves.
• Tension: Determines the degree by which the object tries to follow its original orientation.
• Bank: When enabled, the animated object “leans” into curves in the motion path. The bank
amount can be specifed numerically by degrees. |
Post by GraySho // Sep 5, 2006, 2:09pm
|
GraySho
Total Posts: 695
|
@trueBlue: That's almost a tutorial on it's own, very informative :cool: |
Post by Alien // Sep 6, 2006, 6:58pm
|
Alien
Total Posts: 1231
|
@trueBlue: That's almost a tutorial on it's own, very informative :cool:
Agreed, though Caligari's way of doing it [Z forwards & Y up] seems a bit counter-intuitive, as Z is usually considered to be the vertical axis in all sorts of things [not just trueSpace]. |
|
