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modf

Splits the value x into fractional and integer parts, each of which has the same sign as x.

ret modf(x, out ip)

 

Parameters

ItemDescription

x

[in] The x input value.

ip

[out] The integer portion of x.

 

Return Value

The signed-fractional portion of x.

Type Description

NameIn/Out Template Type Component Type Size
xinscalar, vector, or matrix float, int any
ipoutsame as input x float, int same dimension(s) as input x
retoutsame as input x float, int same dimension(s) as input x

 

Minimum Shader Model

This function is supported in the following shader models.

Shader ModelSupported
Shader Model 2 (DirectX HLSL) and higher shader modelsyes
Shader Model 1 (DirectX HLSL) yes (vs_1_1 only)

 

See also

Intrinsic Functions (DirectX HLSL)

 

 

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