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3D Free-form Deformation

3D Free-form Deformation. By Chase Khamashta. Background.

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3D Free-form Deformation

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  1. 3D Free-form Deformation By Chase Khamashta

  2. Background • In computer graphics, free-form deformation (FFD) is a geometric technique used to model simple deformations of rigid objects. It is based on the idea of enclosing an object within a cube or another hull object, and transforming the object within the hull as the hull is deformed.

  3. Concepts in FFD • Local Coordinates • Bezier Curves • Control Points

  4. The Bezier Curve • Bezier curve equation • Geometric Representation

  5. The Curve in FFD • The local coordinates remain the same • Spatial coordinates change according to vertex location in the local space.

  6. The Curve in FFD (cont.) • Calculating the new vertex location

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