Function directx_math::vector::component_wise::XMVectorSelectControl [−][src]
pub fn XMVectorSelectControl(
VectorIndex0: u32,
VectorIndex1: u32,
VectorIndex2: u32,
VectorIndex3: u32
) -> XMVECTOR
Defines a control vector for use in XMVectorSelect.
Parameters
VectorIndex0
Index that determines which vector in XMVectorSelect will be selected. If zero, the first vector’s first
component will be selected. Otherwise, the second vector’s component will be selected.
VectorIndex1
Index that determines which vector in XMVectorSelect will be selected. If zero, the first vector’s second
component will be selected. Otherwise, the second vector’s component will be selected.
VectorIndex2
Index that determines which vector in XMVectorSelect will be selected. If zero, the first vector’s third
component will be selected. Otherwise, the second vector’s component will be selected.
VectorIndex3
Index that determines which vector in XMVectorSelect will be selected. If zero, the first vector’s fourth
component will be selected. Otherwise, the second vector’s component will be selected.
Return value
Returns the control vector.
Remarks
The following pseudocode demonstrates the operation of the function:
XMVECTOR ControlVector;
const uint32_t ControlElement[] =
{
XM_SELECT_0,
XM_SELECT_1
};
assert(VectorIndex0 < 2);
assert(VectorIndex1 < 2);
assert(VectorIndex2 < 2);
assert(VectorIndex3 < 2);
ControlVector.u[0] = ControlElement[VectorIndex0];
ControlVector.u[1] = ControlElement[VectorIndex1];
ControlVector.u[2] = ControlElement[VectorIndex2];
ControlVector.u[3] = ControlElement[VectorIndex3];
return ControlVector;
Reference
https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMVectorSelectControl