GLTFLoader: Compute world matrices before calling onLoad().
#27877
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donmccurdy
reviewed
Mar 6, 2024
Co-authored-by: Don McCurdy <dm@donmccurdy.com>
donmccurdy
approved these changes
Mar 6, 2024
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I think this change is good because that world matrices are ready when load is completed sounds more natural to me. |
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Related issue: #14499 (comment)
Description
GLTFLoadernow computes the world matrices forgltf.sceneand its descendant nodes before callingonLoad(). That should hopefully fix issues like #14499 (comment) where devs report wrong bounding volumes when computing them in theonLoad()callback.Some background: This change would not be required if bounding volumes (and other logic) could request up-to-date world matrices in their routines (e.g. with a special getter). With the current world matrix computations in
three.js, there is no performant way to ensure that, see #21411.Of course the issue can also be avoided if devs remember to update their world matrices correctly but this task or responsibility is easy to overlook.