From d310d9f975a3968a26d33036cdb09a7d5b2ec79d Mon Sep 17 00:00:00 2001
From: Hei <40064911+Lielay9@users.noreply.github.com>
Date: Thu, 26 Dec 2024 13:59:24 +0200
Subject: [PATCH] Fix gaps in CSGPolygon3D spin mode at 360 degrees

---
 modules/csg/csg_shape.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/csg/csg_shape.cpp b/modules/csg/csg_shape.cpp
index a908b1441251..b8035772994d 100644
--- a/modules/csg/csg_shape.cpp
+++ b/modules/csg/csg_shape.cpp
@@ -2255,7 +2255,11 @@ CSGBrush *CSGPolygon3D::_build_brush() {
 					current_xform.translate_local(Vector3(0, 0, -depth));
 				} break;
 				case MODE_SPIN: {
-					current_xform.rotate(Vector3(0, 1, 0), spin_step);
+					if (end_count == 0 && x0 == extrusions - 1) {
+						current_xform = base_xform;
+					} else {
+						current_xform.rotate(Vector3(0, 1, 0), spin_step);
+					}
 				} break;
 				case MODE_PATH: {
 					double previous_offset = x0 * extrusion_step;