Bezier curve Gradient search | Official Unity Discord | Page 1

float2 ClosestPointOnCurve(CurveSegment curve, float2 Point, float stroke, float tMin, float tMax, float maxAccruacy)
            {
                
                float t = (tMin + tMax) / 2;
                float delta = (t - tMin) / 2;
                float epsilon = 0.001;
                float dir = 1;
                float count = 0;
                
                float2 s1, s2;
                float2 D1, D2;
                float d1, d2;
                for (count = 0; count < maxAccruacy; count++)
                {
                    s1 = CalculateBezierAt(curve, t);
                    s2 = CalculateBezierAt(curve, t+epsilon*dir);

                    D1 = s1 - Point;
                    D2 = s2 - Point;
                    d1 = dot(D1, D1);
                    d2 = dot(D2, D2);
                    
                    if (d1 < d2)
                    {
                        dir = -dir;
                    }

                    delta *= 0.67;
                    t += delta * dir;
                    t = clamp01(t);
                }
                return CalculateBezierAt(curve, t);
            }

This is my algorithm to find the closest Point on a bezier curve segment, it takes in a curve and a range in which to search, note that range cannot have any extreme Values in the given range,
I just had the idea to limit my search to 1 coordinate instead of searching for the closest Distance, I would now just find the closest X or Y, this makes my curve look janky and I don t understand why.
[21:26]
this is the result I get when searching for only the closest X

#Bezier curve Gradient search