XMVector2TransformCoordStream

Transforms a stream of 2D vectors by a given matrix, projecting the resulting vectors such that their w coordinates are equal to 1.0.

Syntax

XMFLOAT2* XMVector2TransformCoordStream(
         XMFLOAT2 *pOutputStream,
         size_t OutputStride,
         const XMFLOAT2 *pInputStream,
         size_t InputStride,
         size_t VectorCount,
         CXMMATRIX M
)  

Parameters

pOutputStream
Type: XMFLOAT2 *

[out]

Address of the first XMFLOAT2 in the destination stream.

OutputStride
Type: size_t 

[in]

Stride, in bytes, between vectors in the destination stream.

pInputStream
Type: XMFLOAT2 *

[in]

Address of the first XMFLOAT2 in the stream to be transformed.

InputStride
Type: size_t 

[in]

Stride, in bytes, between vectors in the input stream.

VectorCount
Type: size_t 

[in]

Number of vectors to transform.

M
Type: CXMMATRIX 

[in]

Transformation matrix.

Return value

Type: XMFLOAT2 *

Returns the address of the first XMFLOAT2 in the destination stream.

Remarks

XMVector2TransformCoordStream performs transformations by using the input matrix row 0 and row 1 for rotation and scaling, and row 3 for translation (effectively assuming row 2 is 0). The w component of the input vector is assumed to be 1.0. The z component of the returned vector should be ignored and its w component will have a value of 1.0.

Requirements

Header: Declared in directxmath.h.