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Compute tighter OBBs #4785

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pjcozzi opened this issue Dec 27, 2016 · 4 comments
Closed

Compute tighter OBBs #4785

pjcozzi opened this issue Dec 27, 2016 · 4 comments
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category - math onramping type - enhancement

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@pjcozzi
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pjcozzi commented Dec 27, 2016

Gottschalk's algorithm, which we currently use, computes an approximate best fit that is sometimes loose-fitting.

Let's check out "Fast Computation of Tight-Fitting Oriented Bounding Boxes" in Game Engine Gems 2 (includes sample code). It computes near optimal OBBs in linear time (faster than Gottschalk's).
@pjcozzi
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pjcozzi commented Dec 27, 2016

CC #2861
@pjcozzi
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pjcozzi commented Dec 27, 2016

CC #4387. The frustum/box test still needs to be checked, but tighter OBBs will help.
@pjcozzi
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pjcozzi commented Dec 30, 2016

Reminder to let @erich666 know how this works out.
@javagl javagl mentioned this issue Aug 26, 2024
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@ggetz
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ggetz commented Aug 27, 2024

Closing as a duplicate of #11600 (comment), which has more info.
@ggetz ggetz closed this as completed Aug 27, 2024
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Labels
category - math onramping type - enhancement
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@pjcozzi @ggetz