Name

normalize - normalizes a vector

Synopsis

float normalize(float v);
float normalize(float1 v);
float normalize(float2 v);
float normalize(float3 v);
float normalize(float4 v);

half normalize(half v);
half normalize(half1 v);
half normalize(half2 v);
half normalize(half3 v);
half normalize(half4 v);

fixed normalize(fixed v);
fixed normalize(fixed1 v);
fixed normalize(fixed2 v);
fixed normalize(fixed3 v);
fixed normalize(fixed4 v);

Parameters

v

Vector to normalize.

Description

Returns the normalized version of a vector, meaning a vector in the same direction as the original vector but with a Euclidean length of one.

Reference Implementation

normalize for a float3 vector could be implemented like this.

float3 normalize(float3 v)
{
  return rsqrt(dot(v,v))*v;
}

Profile Support

normalize is supported in all profiles except fp20.

See Also

distance, dot, length, rsqrt, sqrt