Polar Coordinates Node
Description
Converts the value of input UV to polar coordinates. In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction.
The resulting effect is that the x channel of the input to UV is converted to a distance value from the point specified by the value of input Center and the y channel of same input is converted to the value of an angle of rotation around that point.
These values can be scaled by the values of inputs Radial Scale and Length Scale respectively.
Ports
Name |
Direction |
Type |
Binding |
Description |
UV |
Input |
Vector 2 |
UV |
Input UV value |
Center |
Input |
Vector 2 |
None |
Center reference point |
Radial Scale |
Input |
Float |
None |
Scale of distance value |
Length Scale |
Input |
Float |
None |
Scale of angle value |
Out |
Output |
Vector 2 |
None |
Output value |
Generated Code Example
The following example code represents one possible outcome of this node.
void Unity_PolarCoordinates_float(float2 UV, float2 Center, float RadialScale, float LengthScale, out float2 Out)
{
float2 delta = UV - Center;
float radius = length(delta) * 2 * RadialScale;
float angle = atan2(delta.x, delta.y) * 1.0/6.28 * LengthScale;
Out = float2(radius, angle);
}
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.