USD PointInstancerAlgo : Support orientationsf attribute - #1560
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murraystevenson merged 1 commit intoSep 9, 2026
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LGTM. You may have already seen this, but USD provides UsesOrientationsf, which may be preferable to our own fallback, but I'm good either way... |
This is a float-precision version of the original half-precision `orientations` attribute. A separate attribute name is needed in USD because USD attributes are strongly typed. But Cortex primitive variables can take any data type so we stick with our standard `orientation` name regardless of type. This avoids any ambiguity about which attribute takes precedence.
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Thanks - I hadn't spotted that. Updated to use it in a68f840. |
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This is a float-precision version of the original half-precision
orientationsattribute. A separate attribute name is needed in USD because USD attributes are strongly typed. But Cortex primitive variables can take any data type so we stick with our standardorientationname regardless of type. This avoids any ambiguity about which attribute takes precedence.This PR is for Cortex 10.6, destined for a Gaffer 1.6 patch version. For 10.7/1.7 we should also decide what to do when writing PointInstancers to USD. I'm inclined to always write to
orientationf, but perhaps we'll want to gate it with an environment variable?