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asdouble function

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Reinterprets a cast value (two 32-bit values) into a double.

Syntax

double asdouble(
  in uint lowbits,
  in uint highbits
);

Parameters

lowbits [in]

Type: uint

The low 32-bit pattern of the input value.

highbits [in]

Type: uint

The high 32-bit pattern of the input value.

Return value

Type: double

The input (two 32-bit values) recast as a double.

Remarks

The following overloaded version is also available:

double2 asdouble(uint2 lowbits, uint2 highbits);

If the input value is two 32-bit components, the return type will contain one double. If the input value is four 32-bit components, the return type will contain two doubles. If the input value is a 64-bit type, the returned value will have the same number of components as the input value.

Minimum Shader Model

This function is supported in the following shader models.

Shader Model Supported
Shader Model 5 and higher shader models yes

 

This function is supported in the following types of shaders:

Vertex Hull Domain Geometry Pixel Compute
x x x x x x

 

See also

Intrinsic Functions

Shader Model 5