1e4b80fed9
Add a quaternion attribute type that will be used in combination with rotation sockets for geometry nodes to give a more intuitive experience and better performance when using rotations. The most interesting part is probably the interpolation, the rest is the same as the last attribute type addition,988f23cec3. We need to interpolate multiple values with different weights. Based on Sybren's suggestion, this uses the `expmap` methods from4805a54525for that. This also refactors `SimpleMixerWithAccumulationType` to use a function rather than a cast to convert to the accumulation type. See #92967 Pull Request: https://projects.blender.org/blender/blender/pulls/108678
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