Rotate Node

Description

Rotates value of input UV around a reference point defined by input Center by the amount of input Rotation. The unit for rotation angle can be selected by the parameter Unit.

Ports

Name Direction Type Binding Description
UV Input Vector 2 UV Input UV value
Center Input Vector 2 None Center point to rotate around
Rotation Input Vector 1 None Amount of rotation to apply
Out Output Vector 2 None Output UV value

Controls

Name Type Options Description
Unit Dropdown Radians, Degrees Switches the unit for input Rotation

Generated Code Example

The following example code represents one possible outcome of this node per Unit mode.

Radians

void Unity_Rotate_Radians_float(float2 UV, float2 Center, float Rotation, out float2 Out)
{
    UV -= Center;
    float s = sin(Rotation);
    float c = cos(Rotation);
    float2x2 rMatrix = float2x2(c, -s, s, c);
    rMatrix *= 0.5;
    rMatrix += 0.5;
    rMatrix = rMatrix * 2 - 1;
    UV.xy = mul(UV.xy, rMatrix);
    UV += Center;
    Out = UV;
}

Degrees

void Unity_Rotate_Degrees_float(float2 UV, float2 Center, float Rotation, out float2 Out)
{
    Rotation = Rotation * (3.1415926f/180.0f);
    UV -= Center;
    float s = sin(Rotation);
    float c = cos(Rotation);
    float2x2 rMatrix = float2x2(c, -s, s, c);
    rMatrix *= 0.5;
    rMatrix += 0.5;
    rMatrix = rMatrix * 2 - 1;
    UV.xy = mul(UV.xy, rMatrix);
    UV += Center;
    Out = UV;
}