/// <summary>
/// Returns the fader level for a specific Bezier-curve parameter
/// </summary>
/// <param name="u">The curve parameter</param>
/// <param name="i">the index of the control point in check</param>
/// <param name="cptsNum">The number of control points</param>
/// <returns>Float</returns>
public static float FaderBezier(float u, int i, int cptsNum)
{
int n = cptsNum - 1;
float faderLvl = Mathf.Pow(u, i) * Mathf.Pow(1 - u, n - i) * NurbsUtils.Factorial(n) / (NurbsUtils.Factorial(i) * NurbsUtils.Factorial(n - i));
return(faderLvl);
}
/// <summary>
/// Initializes the surface instance
/// </summary>
public void Initialize()
{
meshFilter = GetComponent <MeshFilter>();
if (transforms == Transforms.FromParent)
{
GetControlPointsFromTranssform();
}
else
{
}
knotsU = NurbsUtils.Knots(countU, degreeU);
knotsV = NurbsUtils.Knots(countV, degreeV);
mesh = new Mesh();
mesh.name = gameObject.name + "_surface";
mesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
UpdateSurface();
}
public override void OnInspectorGUI()
{
EditorGUILayout.LabelField("Curve Settings:", EditorStyles.boldLabel);
myTarget.type = (CurveType)EditorGUILayout.EnumPopup("Curve Type:", myTarget.type);
switch (myTarget.type)
{
case CurveType.NURBS:
myTarget.degree = EditorGUILayout.IntField("Degree:", myTarget.degree);
break;
default:
break;
}
myTarget.resolution = EditorGUILayout.FloatField("Resolution:", myTarget.resolution);
myTarget.transforms = (Transforms)EditorGUILayout.EnumPopup("Control Points Provider:", myTarget.transforms);
switch (myTarget.transforms)
{
case Transforms.AsList:
EditorGUILayout.PropertyField(controlPointTransforms, new GUIContent("Control Point Transform"), true);
break;
case Transforms.FromParent:
EditorGUILayout.PropertyField(controlPointsParent, new GUIContent("Control Points Parent"));
break;
}
myTarget.initializeOnStart = EditorGUILayout.Toggle("Initialize On Start:", myTarget.initializeOnStart);
myTarget.autoUpdate = EditorGUILayout.Toggle("Auto-Update:", myTarget.autoUpdate);
if (myTarget.type == CurveType.NURBS)
{
EditorGUILayout.PropertyField(knots, new GUIContent("Knots"), true);
if (GUILayout.Button("Get Knot Vector:"))
{
switch (myTarget.transforms)
{
case Transforms.AsList:
myTarget.knots = NurbsUtils.Knots(myTarget.controlPointTransforms.Length, myTarget.degree);
break;
case Transforms.FromParent:
myTarget.knots = NurbsUtils.Knots(myTarget.controlPointsParent.childCount, myTarget.degree);
break;
}
}
}
serializedObject.ApplyModifiedProperties();
}
/// <summary>
/// Initializes the Curve
/// </summary>
public void Initialize()
{
lineRenderer = GetComponent <LineRenderer>();
lineRenderer.useWorldSpace = false;
if (transforms == Transforms.FromParent)
{
GetControlPointsFromTransform();
}
else
{
if (controlPointTransforms != null && controlPointTransforms.Length != 0 && (controlPoints == null || controlPoints.Length == 0))
{
GetControlPointsFromTransforms();
}
}
knots = NurbsUtils.Knots(controlPoints.Length, degree);
UpdateCurve();
}