XMUSHORTN2 Structure

A 2D vector for storing unsigned, normalized values as unsigned 16-bit integers, (type uint16_t).

If you are programming in C++, you can use the constructors and operator methods of this structure.

Note See DirectXMath Library Type Equivalences for information about equivalent D3DDECLTYPE, D3DFORMAT, and DXGI_FORMAT objects.

Syntax

struct XMUSHORTN2  

Remarks

The fields in the XMUSHORTN2 structure are declared as follows:

struct XMUSHORTN2
{
    union
    {
        struct
        {
            uint16_t x; // Unsigned integer in the range [0, 65536] 
                        // describing the x-coordinate of the vector.
            uint16_t y; // Unsigned integer in the range [0, 65536] 
                        // describing the y-coordinate of the vector.
        };
        uint32_t v; // Unsigned 32-bit integer representing the 2D vector.
    };  

Those XMUSHORTN2 constructors using floating point arguments require normalized input, which must be in the range of [0.0.-1.0]. During instantiation, data is multiplied by 65535.0f, results are rounded, and then assigned to the appropriate members of XMUSHORTN2.

You can use XMUSHORTN2 to load instances of XMVECTOR from normalized values by using XMLoadShortN4, which divides each component 65535.0f, rounds the result, and then assigns the components to an XMVECTOR instance.

You can store XMVECTOR instances containing normalized values into XMUSHORTN2 using XMStoreShortN4, which multiplies each component by 65535.0f and rounds the result before assigning the values to the appropriate XMUSHORTN2 members.

Namespace: Use DirectX::PackedVector

Requirements

Header: Declared in directxpackedvector.h.