From faac25fefedf4b3318d4f129ebda9efca16e48c5 Mon Sep 17 00:00:00 2001
From: Hans Goudey <h.goudey@me.com>
Date: Tue, 5 Jul 2022 18:01:08 -0500
Subject: [PATCH] Fix T99284: Undefined values output from UV nodes

When committing D14389 I assumed that the output arrays didn't need
to be initialized, but the UV parameterizer uses the intial values of UVs.
---
 source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc b/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
index bf960c5c809..364106455b6 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
@@ -82,7 +82,7 @@ static VArray<float3> construct_uv_gvarray(const MeshComponent &component,
   edge_evaluator.evaluate();
   const IndexMask seam = edge_evaluator.get_evaluated_as_mask(0);
 
-  Array<float3> uv(mesh->totloop);
+  Array<float3> uv(mesh->totloop, float3(0));
 
   ParamHandle *handle = GEO_uv_parametrizer_construct_begin();
   for (const int mp_index : selection) {