Article | Proceedings of SIGRAD 2011. Evaluations of Graphics and Visualization — Efficiency; Usefulness; Accessibility; Usability; November 17-18; 2011; KTH; Stockholm; Sweden | Assisted Environment Map Probe Placement

Title:
Assisted Environment Map Probe Placement
Author:
M. G. Chajdas: Technische Universität München, Germany A. Weis: Technische Universität München, Germany R. Westermann: Technische Universität München, Germany
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Full text (pdf)
Year:
2011
Conference:
Proceedings of SIGRAD 2011. Evaluations of Graphics and Visualization — Efficiency; Usefulness; Accessibility; Usability; November 17-18; 2011; KTH; Stockholm; Sweden
Issue:
065
Article no.:
004
Pages:
17-25
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2011-11-21
ISBN:
978-91-7393-008-6
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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Placing probes for environment maps is a tedious and time-consuming task for current game developers. In particular; locating the significant places for reflection requires the artists to manually scan through a whole game level. Even then; probes may wind up being too similar and have to be cleaned up manually later on. Furthermore; the whole process needs to be repeated when the content changes.

We propose a novel algorithm which assists the artist when placing environment map probes. Based on the original game content; we produce a set of candidate locations for inspection by an artist. By setting a few parameters like sampling density and aggressiveness of probe elimination; the overall number of generated sample probes can be easily adjusted. All of this requires only a short pre-process which can be done using the available in-game renderer. From the generated sample set; the artist can decide which locations are important; add or remove probes manually and adjust the placement to account for supplemental; content-specific parameters. Our initial probe placement; together with additional information computed by our algorithm; allows the artist to place probes more efficiently. Early user testing indicates that the total time can be reduced by up to half a day for a single game level.

Proceedings of SIGRAD 2011. Evaluations of Graphics and Visualization — Efficiency; Usefulness; Accessibility; Usability; November 17-18; 2011; KTH; Stockholm; Sweden

Author:
M. G. Chajdas, A. Weis, R. Westermann
Title:
Assisted Environment Map Probe Placement
References:

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Proceedings of SIGRAD 2011. Evaluations of Graphics and Visualization — Efficiency; Usefulness; Accessibility; Usability; November 17-18; 2011; KTH; Stockholm; Sweden

Author:
M. G. Chajdas, A. Weis, R. Westermann
Title:
Assisted Environment Map Probe Placement
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