18 lines
706 B
Markdown
18 lines
706 B
Markdown
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# Quaternion multiplication
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To rotate a quaternion, use the [`AxisAngle`](xref:Unity.Mathematics.quaternion.AxisAngle*) method. You need to specify the axis of rotation and the angle of rotation, in that order. All are in radians rather than degrees. `math.mul` multiplies the quaternion, just as with [matrices](4x4-matrices.md) and vectors.
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```c#
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// Unity Mathematics example
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void QuaternionMultiplicationUnityMathematics()
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{
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var axis = new float3(0.0f, 1.0f, 0.0f);
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var q = quaternion.AxisAngle(axis,math.radians(45.0f));
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var orientation = quaternion.Euler(
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math.radians(45.0f),
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math.radians(90.0f),
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math.radians(180.0f));
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var result = math.mul(q, orientation);
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}
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```
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