Direct Modeling
Direct modeling is a CAD (Computer-Aided Design) methodology that allows users to create and modify 3D models by directly manipulating geometry—such as pushing, pulling, or dragging faces, edges, and vertices—without relying on a history-based feature tree. It emphasizes intuitive, flexible design changes, making it particularly useful for conceptual design, rapid prototyping, and editing imported models. This approach contrasts with parametric modeling, where changes are driven by defined parameters and constraints.
Developers should learn direct modeling when working in mechanical engineering, product design, or additive manufacturing, as it enables quick iterations and modifications to 3D models without the overhead of managing complex parametric relationships. It is ideal for scenarios like reverse engineering, where models lack a feature history, or for collaborative environments where non-experts need to make design adjustments. Use cases include automotive design, consumer electronics prototyping, and architectural visualization.