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--- tools:s-tk:proximity-node [2019/08/16 10:07] – created lightwolf
+++ tools:s-tk:proximity-node [2019/08/25 18:48] (current) – [Spline Proximity (node)] lightwolf
@@ Line 1: / Line 1: @@
+{{ :tools:s-tk:pasted:20190819-155100.png}}
 ====== Spline Proximity (node) ======
+This node computes the distance of the current point/shading spot to the closest point on the selected spline.
+The accuracy of this node relies on the number of Evaluation Steps defined in the [[tools:s-tk:primitive|]] or the [[tools:s-tk:prefs|]].
+===== Controls =====
+==== Spline ====
+Selects the spline used by this node.
+==== World Coordinates ====
+Switches all evaluation to world coordinates.
+==== Minimum Distance ====
+==== Maximum Distance ====
+These two define the minimum and maximum range for the normalised outputs. The output will ne 0 at the minimum range and 1.0 at the maximum range.
+==== 2D Evaluation Axis ====
+The 2D evaluation axis used by all 2D outputs.
+===== Nodal Inputs =====
+==== Position (vector) ====
+The position to find the closes point in the spline to. If this is not connected, then the current position provided by LightWave 3D is used.
+==== MinDistance (scalar) ====
+==== MaxDistance (scalar) ====
+These two defined the minimum and maximum range for the normalised outputs. The output will ne 0 at the minimum range and 1.0 at the maximum range.
+==== Function (function,scalar) ====
+This allows the shaping of the falloff for the normalised outputs.
+===== Nodal Outputs =====
+==== Distance (scalar) ====
+The distance of the current point to the closest point on the spline.
+==== Normalised (scalar) ====
+The distance of the current point to the closest point on the spline but normalised into a 0..1 range using the Minimum and Maximum Distance.
+==== Position (vector)====
+The position of the closest point on the spline.
+==== Direction (vector)====
+The direction from the current point to the closest point on the spline, normalised.
+==== 2D Distance (scalar) ====
+==== 2D Normalised (scalar) ====
+==== 2D Position (vector)====
+==== 2D Direction (vector)====
+The same as above except that the evaluation is limited to a 2D plane, orthogonal to the 2D Evaluation Axis.