Removed camera from render instance and added validator to check camera

openpype/hosts/blender/plugins/create/create_render.py

@@ -213,18 +213,6 @@ class CreateRenderlayer(plugin.Creator):
 
         return aov_file_products
 
-    @staticmethod
-    def set_render_camera(asset_group):
-        # There should be only one camera in the instance
-        found = False
-        for obj in asset_group.all_objects:
-            if isinstance(obj, bpy.types.Object) and obj.type == "CAMERA":
-                bpy.context.scene.camera = obj
-                found = True
-                break
-
-        assert found, "No camera found in the render instance"
-
     @staticmethod
     def imprint_render_settings(node, data):
         RENDER_DATA = "render_data"
@@ -262,7 +250,6 @@ class CreateRenderlayer(plugin.Creator):
         # We set the render path, the format and the camera
         bpy.context.scene.render.filepath = render_product
         self.set_render_format(ext, multilayer)
-        self.set_render_camera(asset_group)
 
         render_settings = {
             "render_folder": render_folder,

openpype/hosts/blender/plugins/publish/validate_render_camera_is_set.py

@@ -0,0 +1,17 @@
+import bpy
+
+import pyblish.api
+
+
+class ValidateRenderCameraIsSet(pyblish.api.InstancePlugin):
+    """Validate that there is a camera set as active for rendering."""
+
+    order = pyblish.api.ValidatorOrder
+    hosts = ["blender"]
+    families = ["renderlayer"]
+    label = "Validate Render Camera Is Set"
+    optional = False
+
+    def process(self, instance):
+        if not bpy.context.scene.camera:
+            raise RuntimeError("No camera is active for rendering.")

openpype/settings/defaults/project_settings/blender.json

@@ -41,6 +41,11 @@
             "active": true,
             "exclude_families": []
         },
+        "ValidateRenderCameraIsSet": {
+            "enabled": true,
+            "optional": false,
+            "active": true
+        },
         "ValidateMeshHasUvs": {
             "enabled": true,
             "optional": true,

openpype/settings/entities/schemas/projects_schema/schemas/schema_blender_publish.json

@@ -51,6 +51,30 @@
                 }
             ]
         },
+        {
+            "type": "dict",
+            "collapsible": true,
+            "key": "ValidateRenderCameraIsSet",
+            "label": "Validate Render Camera Is Set",
+            "checkbox_key": "enabled",
+            "children": [
+                {
+                    "type": "boolean",
+                    "key": "enabled",
+                    "label": "Enabled"
+                },
+                {
+                    "type": "boolean",
+                    "key": "optional",
+                    "label": "Optional"
+                },
+                {
+                    "type": "boolean",
+                    "key": "active",
+                    "label": "Active"
+                }
+            ]
+        },
         {
             "type": "collapsible-wrap",
             "label": "Model",