Fix T73882, T74420: node wrangler operations only working for Cycles …

…and Eevee

There were legacy checks remaining for Blender Internal, however now we can
assume that any renderer using the native shader node tree is also using Cycles
and Eevee shading nodes. Custom shader nodes will have a different type of node
tree.

node_wrangler.py

@@ -544,9 +544,6 @@
 }
 
 
-def is_cycles_or_eevee(context):
-    return context.scene.render.engine in {'CYCLES', 'BLENDER_EEVEE'}
-
 def is_visible_socket(socket):
     return not socket.hide and socket.enabled
 
@@ -1583,10 +1580,9 @@ class NWEmissionViewer(Operator, NWBase):
 
     @classmethod
     def poll(cls, context):
-        is_cycles = is_cycles_or_eevee(context)
         if nw_check(context):
             space = context.space_data
-            if space.tree_type == 'ShaderNodeTree' and is_cycles:
+            if space.tree_type == 'ShaderNodeTree':
                 if context.active_node:
                     if context.active_node.type != "OUTPUT_MATERIAL" or context.active_node.type != "OUTPUT_WORLD":
                         return True
@@ -2583,7 +2579,7 @@ def poll(cls, context):
         valid = False
         if nw_check(context):
             space = context.space_data
-            if space.tree_type == 'ShaderNodeTree' and is_cycles_or_eevee(context):
+            if space.tree_type == 'ShaderNodeTree':
                 valid = True
         return valid
 
@@ -2687,7 +2683,7 @@ def poll(cls, context):
         valid = False
         if nw_check(context):
             space = context.space_data
-            if space.tree_type == 'ShaderNodeTree' and is_cycles_or_eevee(context):
+            if space.tree_type == 'ShaderNodeTree':
                 valid = True
         return valid
 
@@ -3261,10 +3257,7 @@ def execute(self, context):
         if not output_node:
             bpy.ops.node.select_all(action="DESELECT")
             if tree_type == 'ShaderNodeTree':
-                if is_cycles_or_eevee(context):
-                    output_node = nodes.new('ShaderNodeOutputMaterial')
-                else:
-                    output_node = nodes.new('ShaderNodeOutput')
+                output_node = nodes.new('ShaderNodeOutputMaterial')
             elif tree_type == 'CompositorNodeTree':
                 output_node = nodes.new('CompositorNodeComposite')
             elif tree_type == 'TextureNodeTree':
@@ -3282,7 +3275,7 @@ def execute(self, context):
                     break
 
             out_input_index = 0
-            if tree_type == 'ShaderNodeTree' and is_cycles_or_eevee(context):
+            if tree_type == 'ShaderNodeTree':
                 if active.outputs[output_index].name == 'Volume':
                     out_input_index = 1
                 elif active.outputs[output_index].type != 'SHADER':  # connect to displacement if not a shader
@@ -3730,7 +3723,7 @@ def drawlayout(context, layout, mode='non-panel'):
     col.menu(NWSwitchNodeTypeMenu.bl_idname, text="Switch Node Type")
     col.separator()
 
-    if tree_type == 'ShaderNodeTree' and is_cycles_or_eevee(context):
+    if tree_type == 'ShaderNodeTree':
         col = layout.column(align=True)
         col.operator(NWAddTextureSetup.bl_idname, text="Add Texture Setup", icon='NODE_SEL')
         col.operator(NWAddPrincipledSetup.bl_idname, text="Add Principled Setup", icon='NODE_SEL')
@@ -3815,7 +3808,7 @@ class NWMergeNodesMenu(Menu, NWBase):
     def draw(self, context):
         type = context.space_data.tree_type
         layout = self.layout
-        if type == 'ShaderNodeTree' and is_cycles_or_eevee(context):
+        if type == 'ShaderNodeTree':
             layout.menu(NWMergeShadersMenu.bl_idname, text="Use Shaders")
         layout.menu(NWMergeMixMenu.bl_idname, text="Use Mix Nodes")
         layout.menu(NWMergeMathMenu.bl_idname, text="Use Math Nodes")
@@ -4039,7 +4032,7 @@ def poll(cls, context):
         valid = False
         if nw_check(context):
             snode = context.space_data
-            valid = snode.tree_type == 'ShaderNodeTree' and is_cycles_or_eevee(context)
+            valid = snode.tree_type == 'ShaderNodeTree'
         return valid
 
     def draw(self, context):
@@ -4074,22 +4067,14 @@ def draw(self, context):
         layout = self.layout
         tree = context.space_data.node_tree
         if tree.type == 'SHADER':
-            if is_cycles_or_eevee(context):
-                layout.menu(NWSwitchShadersInputSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersOutputSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersShaderSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersTextureSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersColorSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersVectorSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersConverterSubmenu.bl_idname)
-                layout.menu(NWSwitchShadersLayoutSubmenu.bl_idname)
-            else:
-                layout.menu(NWSwitchMatInputSubmenu.bl_idname)
-                layout.menu(NWSwitchMatOutputSubmenu.bl_idname)
-                layout.menu(NWSwitchMatColorSubmenu.bl_idname)
-                layout.menu(NWSwitchMatVectorSubmenu.bl_idname)
-                layout.menu(NWSwitchMatConverterSubmenu.bl_idname)
-                layout.menu(NWSwitchMatLayoutSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersInputSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersOutputSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersShaderSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersTextureSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersColorSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersVectorSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersConverterSubmenu.bl_idname)
+            layout.menu(NWSwitchShadersLayoutSubmenu.bl_idname)
         if tree.type == 'COMPOSITING':
             layout.menu(NWSwitchCompoInputSubmenu.bl_idname)
             layout.menu(NWSwitchCompoOutputSubmenu.bl_idname)