Efficient bounding of displaced Bézier patches

@inproceedings{Munkberg2010EfficientBO,
  title={Efficient bounding of displaced B{\'e}zier patches},
  author={Jacob Munkberg and Jon Hasselgren and Robert Toth and Tomas Akenine-M{\"o}ller},
  booktitle={High Performance Graphics},
  year={2010}
}
In this paper, we present a new approach to conservative bounding of displaced Bézier patches. These surfaces are expected to be a common use case for tessellation in interactive and real-time rendering. Our algorithm combines efficient normal bounding techniques, min-max mipmap hierarchies and oriented bounding boxes. This results in substantially faster convergence for the bounding volumes of displaced surfaces, prior to tessellation and displacement shading. Our work can be used for… CONTINUE READING
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