Question

In which method does the marker represent positions as a percentage of the total curve length?

• A. End length
• B. Parametric length
• C. Animation length
• D. Focal length

Hint:

Using parametric length prevents unwanted changes in speed when an object moves along complex paths with tightly grouped control points.

Answer 1

The Correct Option is B

Step 1: Understanding Path Animation Systems:
In path animation, an object (like a flying bird) is constrained to follow a spline or curve path. The software evaluates the object's position along the path using mathematical parameters.

Step 2: Defining Parametric Evaluation:
In the Parametric length evaluation method, the animation engine calculates positions along the curve as a percentage ($0\%$ to $100\%$ or $0.0$ to $1.0$) of the total mathematical length of the curve. This ensures the object moves at a uniform speed along the path, regardless of how control points are distributed.

Step 3: Verification of Terms:
This method evaluates progress as a percentage of the overall curve length. Thus, Option (B) is the correct method name.