[Bf-blender-cvs] [4a00faca1a5] master: Fix: Geometry Nodes Subdiv Surface Crash

[Johnny Matthews]

Commit: 4a00faca1a5e86ee3fb2d55ec98bf5f9ef0ae66a
Author: Johnny Matthews
Date:   Sat Oct 16 07:24:30 2021 -0500
Branches: master
https://developer.blender.org/rB4a00faca1a5e86ee3fb2d55ec98bf5f9ef0ae66a

Fix: Geometry Nodes Subdiv Surface Crash

If there are no edges in the mesh, the process would crash.
Returning in this case.

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M	source/blender/nodes/geometry/nodes/node_geo_subdivision_surface.cc

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diff --git a/source/blender/nodes/geometry/nodes/node_geo_subdivision_surface.cc b/source/blender/nodes/geometry/nodes/node_geo_subdivision_surface.cc
index d37f968caa8..5b480f2dc22 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_subdivision_surface.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_subdivision_surface.cc
@@ -97,6 +97,10 @@ static void geo_node_subdivision_surface_exec(GeoNodeExecParams params)
     GeometryComponentFieldContext field_context{mesh_component, domain};
     const int domain_size = mesh_component.attribute_domain_size(domain);
 
+    if (domain_size == 0) {
+      return;
+    }
+
     FieldEvaluator evaluator(field_context, domain_size);
     evaluator.add(crease_field);
     evaluator.evaluate();