[Bf-blender-cvs] [ee8b284d117] master: Fix T89327: Cube and ico sphere nodes do not create UVs

[Hans Goudey]

Commit: ee8b284d117385168739ee9f6f459e077af2ec8c
Author: Hans Goudey
Date:   Tue Jun 22 13:22:40 2021 -0500
Branches: master
https://developer.blender.org/rBee8b284d117385168739ee9f6f459e077af2ec8c

Fix T89327: Cube and ico sphere nodes do not create UVs

It turns out you have to add the UV custom data layer manually before
calling the BMesh primitive operators, even if you pass `calc_uvs=true`.

===================================================================

M	source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cube.cc
M	source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc

===================================================================

diff --git a/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cube.cc b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cube.cc
index 9651301cb34..3a93bc22b7e 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cube.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cube.cc
@@ -43,6 +43,7 @@ Mesh *create_cube_mesh(const float size)
   const BMeshCreateParams bmcp = {true};
   const BMAllocTemplate allocsize = {8, 12, 24, 6};
   BMesh *bm = BM_mesh_create(&allocsize, &bmcp);
+  BM_data_layer_add_named(bm, &bm->ldata, CD_MLOOPUV, nullptr);
 
   BMO_op_callf(bm,
                BMO_FLAG_DEFAULTS,
diff --git a/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc
index f43a4bc6490..22195b9e8db 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc
@@ -44,6 +44,7 @@ static Mesh *create_ico_sphere_mesh(const int subdivisions, const float radius)
   const BMeshCreateParams bmcp = {true};
   const BMAllocTemplate allocsize = {0, 0, 0, 0};
   BMesh *bm = BM_mesh_create(&allocsize, &bmcp);
+  BM_data_layer_add_named(bm, &bm->ldata, CD_MLOOPUV, nullptr);
 
   BMO_op_callf(bm,
                BMO_FLAG_DEFAULTS,