D3DXQuaternionIsIdentity function
Note
The D3DX utility library is deprecated. We recommend that you use DirectXMath instead.
Determines if a quaternion is an identity quaternion.
Syntax
BOOL D3DXQuaternionIsIdentity(
_In_ const D3DXQUATERNION *pQ
);
Parameters
-
pQ [in]
-
Type: const D3DXQUATERNION*
Pointer to the D3DXQUATERNION structure that will be tested for identity.
Return value
Type: BOOL
If the quaternion is an identity quaternion, this function returns TRUE. Otherwise, this function returns FALSE.
Remarks
Use D3DXQuaternionNormalize for any quaternion input that is not already normalized.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
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See also