From 3cfccf11997e9dc2f07000b9d802f0a6038e8ec1 Mon Sep 17 00:00:00 2001
From: Jesse Yurkovich <jesse.y@gmail.com>
Date: Thu, 3 Feb 2022 22:39:57 +1100
Subject: Fix T95137: Spline calc_length not working with just 1 NURB point

The NURB case did not properly handle a curve with only 1 point.

Ref D13904
---
 source/blender/blenkernel/intern/curve.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'source/blender/blenkernel')

diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c
index 37cd62c3bc8..4fc4f3e0bcd 100644
--- a/source/blender/blenkernel/intern/curve.c
+++ b/source/blender/blenkernel/intern/curve.c
@@ -915,7 +915,7 @@ float BKE_nurb_calc_length(const Nurb *nu, int resolution)
         pntsit = points + 3;
       }
 
-      while (--b) {
+      while (--b > 0) {
         length += len_v3v3(prevpntsit, pntsit);
         prevpntsit = pntsit;
         pntsit += 3;
-- 
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