VisACD: Visibility-Based GPU-Accelerated Approximate Convex Decomposition
This addresses the problem of inefficient and orientation-sensitive collision detection in physics-based simulation, offering a more balanced solution for developers and researchers in computer graphics and simulation.
The paper tackles the trade-off between performance and accuracy in collision detection by introducing VisACD, a visibility-based, rotation-equivariant, and intersection-free Approximate Convex Decomposition algorithm with GPU acceleration, which produces high-quality decompositions with fewer convex parts, is not sensitive to shape orientation, and is more efficient than prior work.
Physics-based simulation involves trade-offs between performance and accuracy. In collision detection, one trade-off is the granularity of collider geometry. Primitive-based colliders such as bounding boxes are efficient, while using the original mesh is more accurate but often computationally expensive. Approximate Convex Decomposition (ACD) methods strive for a balance of efficiency and accuracy. Prior works can produce high-quality decompositions but require large numbers of convex parts and are sensitive to the orientation of the input mesh. We address these weaknesses with VisACD, a visibility-based, rotation-equivariant, and intersection-free ACD algorithm with GPU acceleration. Our approach produces high-quality decompositions with fewer convex parts, is not sensitive to shape orientation, and is more efficient than prior work.