# Occluding Edges Soft Shadows - A New Approach for Realistic Shadows using Occluding Edges

### Christian Liwai Reimann, Bernd Dreier

#### Abstract

In this paper, a new algorithm to render soft shadows in real time applications is introduced, namely the Occluding Edges Soft Shadow algorithm (short OESS). The algorithm approximates the shadow cast from linear lights by finding the outlines of an occluding object (Occluding Edges) and considering these in a fragment’s illumination. The method is based on the shadow mapping technique, whereby its capability of rendering the shadow at an interactive rate does not depend on the complexity of the scene. The paper supplies an overview for several methods to produce shadows and soft shadows in real time computer graphics, a detailed description of the newly developed algorithm, and a section with results and future possibilities for improvements.

#### References

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#### Paper Citation

#### in Harvard Style

Reimann C. and Dreier B. (2016). **Occluding Edges Soft Shadows - A New Approach for Realistic Shadows using Occluding Edges** . In *Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016)* ISBN 978-989-758-175-5, pages 179-186. DOI: 10.5220/0005777701770184

#### in Bibtex Style

@conference{grapp16,

author={Christian Liwai Reimann and Bernd Dreier},

title={Occluding Edges Soft Shadows - A New Approach for Realistic Shadows using Occluding Edges},

booktitle={Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016)},

year={2016},

pages={179-186},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0005777701770184},

isbn={978-989-758-175-5},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016)

TI - Occluding Edges Soft Shadows - A New Approach for Realistic Shadows using Occluding Edges

SN - 978-989-758-175-5

AU - Reimann C.

AU - Dreier B.

PY - 2016

SP - 179

EP - 186

DO - 10.5220/0005777701770184