sign

Returns the sign of x.

ret sign(x)

Parameters

Item Description
x
[in] The input value.

Return Value

Returns -1 if x is less than zero; 0 if x equals zero; and 1 if x is greater than zero.

Type Description

Name Template Type Component Type Size
x scalar, vector, or matrix float, int any
ret same as input x int same dimension(s) as input x

Minimum Shader Model

This function is supported in the following shader models.

Shader Model Supported
Shader Model 2 (DirectX HLSL) and higher shader models yes
Shader Model 1 (DirectX HLSL) yes (vs_1_1 and ps_1_4)

See also

Intrinsic Functions (DirectX HLSL)