Real-time appearance preserving out-of-core rendering with shadows

@inproceedings{Guthe2004RealtimeAP,
  title={Real-time appearance preserving out-of-core rendering with shadows},
  author={Michael Guthe and Pavel Borodin and {\'A}kos Bal{\'a}zs and R. Klein},
  booktitle={Rendering Techniques},
  year={2004}
}
Despite recent advances in finding efficient LOD-representations for gigantic 3D objects, rendering of complex, gigabyte-sized models and environments is still a challenging task, especially under real-time constraints and high demands on the visual accuracy. The two general approaches are using either a polygon- or a point-based representation for the simplified geometry. With the polygon-based approaches high frame rates can be achieved by sacrificing the exact appearance and thus the image… 

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References

SHOWING 1-10 OF 57 REFERENCES

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.

Fast, Practical and Robust Shadows

We present a set of algorithms for rendering shadows using the stencil buffer and shadow volume geometry. It can achieve greater performance than previous methods by applying a series of techniques

Fast view-dependent level-of-detail rendering using cached geometry

TLDR
This paper presents the CABTT algorithm, an extension to existing binary-triangle-tree-based level-of-detail algorithms that operates on clusters of geometry called aggregate triangles, instead of manipulating triangles, which reduces CPU overhead and fully utilizes the hardware accelerated rendering pipeline on modern video cards.

Efficient image-based methods for rendering soft shadows

TLDR
The first approach—layered attenuation maps—achieves interactive rendering rates, but limits sampling flexibility, while the second method—coherence-based raytracing of depth images—is not interactive, but removes the limitations on sampling and yields high quality images at a fraction of the cost of conventional raytracers.

Perceptually guided simplification of lit, textured meshes

TLDR
This work uses a simple model of low-level human vision to estimate the perceptibility of local simplification operations in a view-dependent Multi-Triangulation structure and improves on prior perceptual simplification approaches by accounting for textured models and dynamic lighting effects.

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

Interactive shadow generation in complex environments

TLDR
An algorithm for computing a compact potentially visible set (PVS) using levels-of-detail (LODs) and visibility culling and a combination of shadow-polygons and shadow maps to generate shadows is presented.

Efficient High Quality Rendering of Point Sampled Geometry

TLDR
An efficient rendering algorithm is presented that exploits the hierarchical structure of the representation to perform fast 3D transformations and shading and is extended to surface splatting which yields high quality anti-aliased and water tight surface renderings.

Real-Time Soft Shadows Using a Single Light Sample

TLDR
A real-time rendering algorithm that generates soft shadows of dynamic scenes using a single light sample based on a bivariate attenuation function, whose result modulates the intensity of a light causing shadows.

Efficient view-dependent out-of-core visualization

TLDR
This paper presents an out-of-core visualization algorithm that overcomes the cracks generated by the simplification algorithm with appropriately shaded fat borders and comes up with a simple nevertheless efficient view-dependent rendering technique which allows for the natural incorporation of state-of theart culling, simplification, compression and prefetching techniques.
...