Commit: 036c60a27d8d2d66d9cf81c131c6c94548ba51c6
Author: Jacques Lucke
Date: Thu Sep 29 13:32:03 2022 +0200
Branches: blender-v3.3-release
https://developer.blender.org/rB036c60a27d8d2d66d9cf81c131c6c94548ba51c6
Fix: Spline Parameter node produces NaN when curve is a single point
Issue found in file from T101256.
===================================================================
M source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
===================================================================
diff --git
a/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
b/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
index 5901d310df4..03f5e428fb3 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_spline_parameter.cc
@@ -126,6 +126,10 @@ static VArray<float>
construct_curve_parameter_varray(const bke::CurvesGeometry
value *= factor;
}
}
+ else if (curve_lengths.size() == 1) {
+ /* The curve is a single point. */
+ curve_lengths[0] = 0.0f;
+ }
else {
/* It is arbitrary what to do in those rare cases when all the
points are
* in the same position. In this case we are just arbitrarily giving
a valid
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