Archimesh: Fix error when Cycles is not enabled

Now if cycles render is not enabled or not selected, the materials are
not created.

14 files changed, 91 insertions, 106 deletions

diff --git a/archimesh/achm_books_maker.py b/archimesh/achm_books_maker.py
index e8d9fcef..890a6952 100644
--- a/archimesh/achm_books_maker.py
+++ b/archimesh/achm_books_maker.py
@@ -137,6 +137,8 @@ class AchmBooks(Operator):
             row.prop(self, 'afn', slider=True)
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
             if self.crt_mat:
                 row = box.row()
@@ -201,7 +203,7 @@ def generate_books(self):
         mydata = create_book("Book" + str(x),
                              self.width, self.depth, self.height,
                              lastx, myloc.y, myloc.z,
-                             self.crt_mat,
+                             self.crt_mat if bpy.context.scene.render.engine == 'CYCLES' else False,
                              self.rX, self.rY, self.rZ, self.rot, ox, oy, oz, ot,
                              self.objcol, self.rC)
         boxes.extend([mydata[0]])
diff --git a/archimesh/achm_column_maker.py b/archimesh/achm_column_maker.py
index 40b46169..6bae7efa 100644
--- a/archimesh/achm_column_maker.py
+++ b/archimesh/achm_column_maker.py
@@ -322,6 +322,8 @@ class AchmColumn(bpy.types.Operator):
                     row.prop(self, 'ramp')
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
         else:
             row = layout.row()
@@ -528,7 +530,7 @@ def create_column_mesh(self):
     # ------------------------
     # Create materials
     # ------------------------
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         # Column material
         mat = create_diffuse_material("Column_material", False, 0.748, 0.734, 0.392, 0.573, 0.581, 0.318)
         set_material(mycolumn, mat)
diff --git a/archimesh/achm_curtain_maker.py b/archimesh/achm_curtain_maker.py
index d7ff1011..dcb5dadc 100644
--- a/archimesh/achm_curtain_maker.py
+++ b/archimesh/achm_curtain_maker.py
@@ -134,6 +134,8 @@ class AchmJapan(Operator):
                 row.prop(self, 'open05', slider=True)
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
             if self.crt_mat:
                 box.label("* Remember to verify fabric texture folder")
@@ -218,6 +220,8 @@ class AchmRoller(Operator):
             row.prop(self, 'height')
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
             if self.crt_mat:
                 box.label("* Remember to verify fabric texture folder")
@@ -352,7 +356,7 @@ def generate_japan(self):
     posz = -0.008
     x = 1
     fabricmat = None
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         fabricmat = create_fabric_material("Fabric_material", False, 0.653, 0.485, 0.265,
                                            0.653, 0.485, 0.265)
 
@@ -392,7 +396,7 @@ def generate_japan(self):
     mycurve2.location.y = -0.01
     mycurve2.location.z = 0.005
 
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("String_material", False, 0.1, 0.1, 0.1,
                                       0.1, 0.1, 0.1, 0.01)
         set_material(mycurve1, mat)
@@ -627,7 +631,7 @@ def generate_roller(self):
     # Roller Top
     # ------------------
     fabricsolid = None
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         fabricsolid = create_diffuse_material("Fabric_solid_material", False, 0.653, 0.485, 0.265)
 
     myroller = create_roller_rail("Roller",
@@ -643,7 +647,7 @@ def generate_roller(self):
     # Sides
     # --------------------------------------------------------------------------------
     plastic = None
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         plastic = create_diffuse_material("Plastic_roller_material", False, 0.653, 0.485, 0.265, 0.653, 0.485, 0.265,
                                           0.2)
 
@@ -665,7 +669,7 @@ def generate_roller(self):
     # Panel
     # --------------------------------------------------------------------------------
     fabricmat = None
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         fabricmat = create_fabric_material("Fabric_translucent_material", False, 0.653, 0.485, 0.265, 0.653, 0.485,
                                            0.265)
 
@@ -703,7 +707,7 @@ def generate_roller(self):
     mycurve.location.x = self.width + 0.015
     mycurve.location.y = 0
     mycurve.location.z = -0.38
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("String_material", False, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.01)
         set_material(mycurve, mat)
 
diff --git a/archimesh/achm_door_maker.py b/archimesh/achm_door_maker.py
index b0908209..64ba7829 100644
--- a/archimesh/achm_door_maker.py
+++ b/archimesh/achm_door_maker.py
@@ -205,7 +205,7 @@ def shape_children(mainobject, update=False):
         mydoor = make_one_door(mp, mainobject, widthr + mp.frame_size, "1")
         mydoor.location.x = mp.frame_width / 2 - mp.frame_size
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("Door_material", False, 0.8, 0.8, 0.8)
         set_material(mainobject, mat)
 
@@ -236,12 +236,13 @@ def shape_children(mainobject, update=False):
     myctrl.draw_type = 'BOUNDS'
     myctrl.hide = False
     myctrl.hide_render = True
-    myctrl.cycles_visibility.camera = False
-    myctrl.cycles_visibility.diffuse = False
-    myctrl.cycles_visibility.glossy = False
-    myctrl.cycles_visibility.transmission = False
-    myctrl.cycles_visibility.scatter = False
-    myctrl.cycles_visibility.shadow = False
+    if bpy.context.scene.render.engine == 'CYCLES':
+        myctrl.cycles_visibility.camera = False
+        myctrl.cycles_visibility.diffuse = False
+        myctrl.cycles_visibility.glossy = False
+        myctrl.cycles_visibility.transmission = False
+        myctrl.cycles_visibility.scatter = False
+        myctrl.cycles_visibility.shadow = False
 
     # Create control box for baseboard
     myctrlbase = create_control_box("CTRL_Baseboard",
@@ -258,16 +259,17 @@ def shape_children(mainobject, update=False):
     myctrlbase.draw_type = 'BOUNDS'
     myctrlbase.hide = False
     myctrlbase.hide_render = True
-    myctrlbase.cycles_visibility.camera = False
-    myctrlbase.cycles_visibility.diffuse = False
-    myctrlbase.cycles_visibility.glossy = False
-    myctrlbase.cycles_visibility.transmission = False
-    myctrlbase.cycles_visibility.scatter = False
-    myctrlbase.cycles_visibility.shadow = False
-
-    mat = create_transparent_material("hidden_material", False)
-    set_material(myctrl, mat)
-    set_material(myctrlbase, mat)
+    if bpy.context.scene.render.engine == 'CYCLES':
+        myctrlbase.cycles_visibility.camera = False
+        myctrlbase.cycles_visibility.diffuse = False
+        myctrlbase.cycles_visibility.glossy = False
+        myctrlbase.cycles_visibility.transmission = False
+        myctrlbase.cycles_visibility.scatter = False
+        myctrlbase.cycles_visibility.shadow = False
+
+        mat = create_transparent_material("hidden_material", False)
+        set_material(myctrl, mat)
+        set_material(myctrlbase, mat)
 
     # deactivate others
     for o in bpy.data.objects:
@@ -457,6 +459,8 @@ class AchmDoorObjectgeneratorpanel(Panel):
                 layout.prop(myobjdat, 'handle')
 
                 box = layout.box()
+                if not context.scene.render.engine == 'CYCLES':
+                    box.enabled = False
                 box.prop(myobjdat, 'crt_mat')
             else:
                 row = layout.row()
@@ -539,7 +543,7 @@ def make_one_door(self, myframe, width, openside):
         set_smooth(handle2)
         set_modifier_subsurf(handle2)
     # Create materials
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         # Door material
         mat = create_diffuse_material("Door_material", False, 0.8, 0.8, 0.8)
         set_material(mydoor, mat)
diff --git a/archimesh/achm_kitchen_maker.py b/archimesh/achm_kitchen_maker.py
index d34bc929..3cbfe02a 100644
--- a/archimesh/achm_kitchen_maker.py
+++ b/archimesh/achm_kitchen_maker.py
@@ -522,6 +522,8 @@ class AchmKitchen(Operator):
                     add_cabinet(self, box, idx + 1, self.cabinets[idx])
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
         else:
             row = layout.row()
@@ -831,7 +833,7 @@ def generate_cabinets(self):
         set_normals(base)
 
     # Create materials
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("Cabinet_material", False, 0.8, 0.8, 0.8)
         for box in boxes:
             set_material(box, mat)
diff --git a/archimesh/achm_lamp_maker.py b/archimesh/achm_lamp_maker.py
index e8918a4a..724f21a4 100644
--- a/archimesh/achm_lamp_maker.py
+++ b/archimesh/achm_lamp_maker.py
@@ -354,6 +354,8 @@ class AchmLamp(Operator):
                 row.prop(self, 'tr03')
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
             if self.crt_mat:
                 row = box.row()
@@ -484,7 +486,7 @@ def generate_lamp(self):
     mybulb.name = "Lamp_Bulb"
     mybulb.parent = myholder
     mybulb.location = (0, 0, radbulb + self.holder + 0.04)
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_emission_material(mybulb.name, True, 0.8, 0.8, 0.8, self.energy)
         set_material(mybulb, mat)
 
diff --git a/archimesh/achm_roof_maker.py b/archimesh/achm_roof_maker.py
index 35d5a60d..d88b5763 100644
--- a/archimesh/achm_roof_maker.py
+++ b/archimesh/achm_roof_maker.py
@@ -131,6 +131,8 @@ class AchmRoof(Operator):
             box.prop(self, 'roof_angle')
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
         else:
             row = layout.row()
@@ -203,7 +205,7 @@ def create_roof_mesh(self):
     myroof.rotation_euler = (radians(self.roof_angle), 0.0, 0.0)
 
     # Create materials
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         # material
         mat = create_diffuse_material("Roof_material", False, 0.482, 0.061, 0.003, 0.581, 0.105, 0.068, 0.01)
         set_material(myroof, mat)
diff --git a/archimesh/achm_room_maker.py b/archimesh/achm_room_maker.py
index 36138ac0..c092a4e3 100644
--- a/archimesh/achm_room_maker.py
+++ b/archimesh/achm_room_maker.py
@@ -542,7 +542,7 @@ def shape_walls_and_create_children(myroom, tmp_mesh, update=False):
             movetotopsolidify(mybase)
 
     # Create materials
-    if rp.crt_mat:
+    if rp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         # Wall material (two faces)
         mat = create_diffuse_material("Wall_material", False, 0.765, 0.650, 0.588, 0.8, 0.621, 0.570, 0.1, True)
         set_material(myroom, mat)
@@ -1698,4 +1698,6 @@ class AchmRoomGeneratorPanel(Panel):
                 row.prop(room, 'shell_bfactor', slider=True)
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(room, 'crt_mat')
diff --git a/archimesh/achm_shelves_maker.py b/archimesh/achm_shelves_maker.py
index 0bc0b299..6cbab554 100644
--- a/archimesh/achm_shelves_maker.py
+++ b/archimesh/achm_shelves_maker.py
@@ -174,6 +174,8 @@ class AchmShelves(Operator):
                     add_shelves(self, box, idx + 1, self.shelves[idx])
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
         else:
             row = layout.row()
@@ -316,7 +318,7 @@ def generate_shelves(self):
     bpy.context.scene.objects.active = boxes[0]
 
     # Create materials
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("Shelves_material", False, 0.8, 0.8, 0.8)
         for box in boxes:
             set_material(box, mat)
diff --git a/archimesh/achm_stairs_maker.py b/archimesh/achm_stairs_maker.py
index e293dad1..d5b1f82e 100644
--- a/archimesh/achm_stairs_maker.py
+++ b/archimesh/achm_stairs_maker.py
@@ -178,6 +178,8 @@ class AchmStairs(Operator):
                 row.prop(self, 'side_gap')
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(self, 'crt_mat')
         else:
             row = layout.row()
@@ -238,7 +240,7 @@ def create_stairs_mesh(self):
     # ------------------------
     # Create materials
     # ------------------------
-    if self.crt_mat:
+    if self.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         # Stairs material
         mat = create_diffuse_material("Stairs_material", False, 0.8, 0.8, 0.8)
         set_material(mystairs, mat)
diff --git a/archimesh/achm_tools.py b/archimesh/achm_tools.py
index 3ae6618a..bb23c039 100644
--- a/archimesh/achm_tools.py
+++ b/archimesh/achm_tools.py
@@ -327,11 +327,6 @@ def create_diffuse_material(matname, replace, r, g, b, rv=0.8, gv=0.8, bv=0.8, m
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.diffuse_color = (rv, gv, bv)  # viewport color
     mat.use_nodes = True
@@ -416,11 +411,6 @@ def create_translucent_material(matname, replace, r, g, b, rv=0.8, gv=0.8, bv=0.
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.diffuse_color = (rv, gv, bv)  # viewport color
     mat.use_nodes = True
@@ -473,11 +463,6 @@ def create_glass_material(matname, replace, rv=0.333, gv=0.342, bv=0.9):
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (rv, gv, bv)
@@ -557,11 +542,6 @@ def create_transparent_material(matname, replace, r=1, g=1, b=1, alpha=0):
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (r, g, b)
@@ -598,11 +578,6 @@ def create_glossy_material(matname, replace, r, g, b, rv=0.578, gv=0.555, bv=0.7
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (rv, gv, bv)
@@ -640,11 +615,6 @@ def create_emission_material(matname, replace, r, g, b, energy):
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     nodes = mat.node_tree.nodes
@@ -681,11 +651,6 @@ def create_old_glass_material(matname, replace, rv=0.352716, gv=0.760852, bv=0.9
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (rv, gv, bv)
@@ -759,11 +724,6 @@ def create_brick_material(matname, replace, r, g, b, rv=0.8, gv=0.636, bv=0.315)
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (rv, gv, bv)
@@ -820,11 +780,6 @@ def create_fabric_material(matname, replace, r, g, b, rv=0.8, gv=0.636, bv=0.315
             if m.name == matname:
                 return m
     # Create material
-    scn = bpy.context.scene
-    # Set cycles render engine if not selected
-    if not scn.render.engine == 'CYCLES':
-        scn.render.engine = 'CYCLES'
-
     mat = bpy.data.materials.new(matname)
     mat.use_nodes = True
     mat.diffuse_color = (rv, gv, bv)
diff --git a/archimesh/achm_venetian_maker.py b/archimesh/achm_venetian_maker.py
index 107e2e7b..57adf0ef 100644
--- a/archimesh/achm_venetian_maker.py
+++ b/archimesh/achm_venetian_maker.py
@@ -138,7 +138,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mat = None
     plastic = None
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         rgb = mp.objcol
         plastic = create_diffuse_material("Plastic_venetian_material", True, rgb[0], rgb[1], rgb[2], rgb[0], rgb[1],
                                           rgb[2], 0.2)
@@ -149,7 +149,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     create_venetian_top(tmp_mesh, mp.width + 0.002, mp.depth + 0.002, -0.06)
 
     # materials
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mainobject, plastic)
     # --------------------------------------------------------------------------------
     # segments
@@ -169,7 +169,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     set_normals(myslats)
     set_smooth(myslats)
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(myslats, plastic)
     # ------------------------
     # Strings (Middle)
@@ -201,7 +201,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mycurver.location.y = 0
     mycurver.location.z = 0
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         mat = create_diffuse_material("String_material", False, 0.674, 0.617, 0.496, 0.1, 0.1, 0.1, 0.01)
         set_material(mycurvel, mat)
         set_material(mycurvec, mat)
@@ -237,7 +237,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mycurverf.location.y = ((-mp.depth / 2) * cos(radians(mp.angle))) - 0.001
     mycurverf.location.z = 0
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mycurvelf, mat)
         set_material(mycurvecf, mat)
         set_material(mycurverf, mat)
@@ -274,7 +274,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mycurverb.location.y = ((mp.depth / 2) * cos(radians(mp.angle))) + 0.001
     mycurverb.location.z = 0
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mycurvelb, mat)
         set_material(mycurvecb, mat)
         set_material(mycurverb, mat)
@@ -290,7 +290,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mybase.rotation_euler = (radians(angleused), 0, 0)
 
     # materials
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mybase, plastic)
     # ------------------
     # Stick
@@ -301,7 +301,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mystick.location.y = -mp.depth / 2 - 0.003
     mystick.location.z = -0.03
     # materials
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         matstick = create_diffuse_material("Stick_material", False, 0.6, 0.6, 0.6, 0.6, 0.6, 0.6, 0.04)
         set_material(mybase, matstick)
 
@@ -314,7 +314,7 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     mystring.location.y = -mp.depth / 2 - 0.003
     mystring.location.z = -0.03
 
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mystring, mat)
     # deactivate others
     for o in bpy.data.objects:
@@ -430,6 +430,8 @@ class AchmVenetianObjectgeneratorpanel(Panel):
             row.prop(myobjdat, 'ratio', slider=True)
 
             box = layout.box()
+            if not context.scene.render.engine == 'CYCLES':
+                box.enabled = False
             box.prop(myobjdat, 'crt_mat')
             if myobjdat.crt_mat:
                 row = box.row()
diff --git a/archimesh/achm_window_maker.py b/archimesh/achm_window_maker.py
index ad7731a3..fa8bf390 100644
--- a/archimesh/achm_window_maker.py
+++ b/archimesh/achm_window_maker.py
@@ -219,15 +219,16 @@ def shape_mesh_and_create_children(mainobject, tmp_mesh, update=False):
     myctrl.draw_type = 'BOUNDS'
     myctrl.hide = False
     myctrl.hide_render = True
-    myctrl.cycles_visibility.camera = False
-    myctrl.cycles_visibility.diffuse = False
-    myctrl.cycles_visibility.glossy = False
-    myctrl.cycles_visibility.transmission = False
-    myctrl.cycles_visibility.scatter = False
-    myctrl.cycles_visibility.shadow = False
+    if bpy.context.scene.render.engine == 'CYCLES':
+        myctrl.cycles_visibility.camera = False
+        myctrl.cycles_visibility.diffuse = False
+        myctrl.cycles_visibility.glossy = False
+        myctrl.cycles_visibility.transmission = False
+        myctrl.cycles_visibility.scatter = False
+        myctrl.cycles_visibility.shadow = False
 
-    mat = create_transparent_material("hidden_material", False)
-    set_material(myctrl, mat)
+        mat = create_transparent_material("hidden_material", False)
+        set_material(myctrl, mat)
 
     # deactivate others
     for o in bpy.data.objects:
@@ -513,6 +514,8 @@ class AchmWindowObjectgeneratorpanel(Panel):
                         row.prop(myobjdat, 'blind_back')
 
                 box = layout.box()
+                if not context.scene.render.engine == 'CYCLES':
+                    box.enabled = False
                 box.prop(myobjdat, 'crt_mat')
             else:
                 row = layout.row()
@@ -526,7 +529,7 @@ def generate_rail_window(myframe, mp, mymesh):
     myloc = bpy.context.scene.cursor_location
 
     alummat = None
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         alummat = create_diffuse_material("Window_material", False, 0.8, 0.8, 0.8, 0.6, 0.6, 0.6, 0.15)
 
     # Frame
@@ -617,7 +620,7 @@ def generate_leaf_window(myframe, mp, mymesh):
     myloc = bpy.context.scene.cursor_location
 
     alummat = None
-    if mp.crt_mat:
+    if mp.crt_mat and bpy.context.scene.render.engine == 'CYCLES':
         alummat = create_diffuse_material("Window_material", False, 0.8, 0.8, 0.8, 0.6, 0.6, 0.6, 0.15)
 
     # Frame
@@ -1223,7 +1226,7 @@ def create_rail_window_leaf(objname, hand, sx, sy, sz, f, px, py, pz, mat, matda
         else:
             myhandle.location.z = 1
 
-    if mat is True:
+    if mat is True and bpy.context.scene.render.engine == 'CYCLES':
         set_material(mywindow, matdata)
         # Glass
         glass = create_glass_material("Glass_material", False)
diff --git a/archimesh/achm_window_panel.py b/archimesh/achm_window_panel.py
index 27f0dd6f..ce7cb34e 100644
--- a/archimesh/achm_window_panel.py
+++ b/archimesh/achm_window_panel.py
@@ -397,15 +397,16 @@ def do_ctrl_box(myobject):
     myctrl.draw_type = 'WIRE'
     myctrl.hide = False
     myctrl.hide_render = True
-    myctrl.cycles_visibility.camera = False
-    myctrl.cycles_visibility.diffuse = False
-    myctrl.cycles_visibility.glossy = False
-    myctrl.cycles_visibility.transmission = False
-    myctrl.cycles_visibility.scatter = False
-    myctrl.cycles_visibility.shadow = False
-
-    mat = create_transparent_material("hidden_material", False)
-    set_material(myctrl, mat)
+    if bpy.context.scene.render.engine == 'CYCLES':
+        myctrl.cycles_visibility.camera = False
+        myctrl.cycles_visibility.diffuse = False
+        myctrl.cycles_visibility.glossy = False
+        myctrl.cycles_visibility.transmission = False
+        myctrl.cycles_visibility.scatter = False
+        myctrl.cycles_visibility.shadow = False
+
+        mat = create_transparent_material("hidden_material", False)
+        set_material(myctrl, mat)
 
 
 # ------------------------------------------------------------------------------