• Corpus ID: 7580874

Efficient NURBS Rendering using View-Dependent LOD and Normal Maps

@inproceedings{Guthe2003EfficientNR,
  title={Efficient NURBS Rendering using View-Dependent LOD and Normal Maps},
  author={Michael Guthe and R. Klein},
  booktitle={WSCG},
  year={2003}
}
Rendering large trimmed NURBS models with high quality at interactive frame rates is of great interest for industry, since nearly all their models are designed on the basis of this surface type. Most existing approaches transform the NURBS surfaces into polygonal representation and build static levels of detail. Unfortunately, algorithms which keep the NURBS representation and generate view-dependent LOD on the fly suffer from the problem, that they only calculate the geometric error of an… 

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References

SHOWING 1-10 OF 48 REFERENCES

Efficient rendering of multiresolution meshes with guaranteed image quality

TLDR
A new approach for better estimation of normal deviations between different levels of detail is described, which allows for accurate lighting with a minimum number of triangles.

Multiresolution rendering by sewing trimmed NURBS surfaces

TLDR
This paper describes a method, which automatically determines common boundaries of trimmed NURBS surfaces and sews along them, which provides a non-manifold or manifold structure, which can be handled using standard multi-resolution techniques.

Rendering trimmed NURBS with adaptive forward differencing

TLDR
This method extends the AFD technique to higher order, efficiently computes the basis matrix for each span, calculates the shading approximation functions for rational surfaces, and trims and image maps NURB surfaces.

View-dependent refinement of progressive meshes

TLDR
This paper defines efficient refinement criteria based on the view frustum, surface orientation, and screen-space geometric error, and develops a real-time algorithm for incrementally refining and coarsening the mesh according to these criteria.

Appearance-preserving simplification

TLDR
A new algorithm is presented that not only does it generate a low-polygon-count approximation of a model, but it also preserves the appearance, and is applied to several large models achieving significant amounts of simplification with little or no loss in rendering quality.

Dynamic view-dependent simplification for polygonal models

TLDR
An algorithm for performing view-dependent simplifications of a triangulated polygonal model in real-time, which is more effective than the current level-of-detail-based rendering approaches for most scientific visualization applications where there are a limited number of highly complex objects that stay relatively close to the viewer.

FastMesh: efficient view-dependent meshing

  • R. Pajarola
  • Computer Science
    Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001
  • 2001
TLDR
The paper introduces an efficient hierarchical multiresolution triangulation framework based on a half-edge triangle mesh data structure, and presents an optimized computation of several view-dependent error metrics within that framework, providing conservative error bounds.

Generalized View‐Dependent Simplification

TLDR
A cubic‐spline‐based distance metric is proposed that can be used to unify the geometry and topology simplifications by considering the vertex positions and normals in an integrated manner.

Real Time, Accurate, Multi‐Featured Rendering of Bump Mapped Surfaces

We present a new technique to render in real time objects which have part of their high frequency geometric detail encoded in bump maps. It is based on the quantization of normal‐maps, and achieves