adding removeAOVs in setting to allow users to choose whether keeping existing AOVs

openpype/hosts/maya/api/lib_rendersettings.py

@@ -108,8 +108,10 @@ class RenderSettings(object):
         # function to revert render settings does not reset AOVs list in MtoA
         # Fetch current aovs in case there's any.
         current_aovs = AOVInterface().getAOVs()
+        remove_aovs = arnold_render_presets["remove_aovs"]
+        if remove_aovs:
         # Remove fetched AOVs
-        AOVInterface().removeAOVs(current_aovs)
+            AOVInterface().removeAOVs(current_aovs)
         mel.eval("unifiedRenderGlobalsRevertToDefault")
         img_ext = arnold_render_presets["image_format"]
         img_prefix = arnold_render_presets["image_prefix"]
@@ -118,6 +120,8 @@ class RenderSettings(object):
         multi_exr = arnold_render_presets["multilayer_exr"]
         additional_options = arnold_render_presets["additional_options"]
         for aov in aovs:
+            if aov in current_aovs and not remove_aovs:
+                continue
             AOVInterface('defaultArnoldRenderOptions').addAOV(aov)
 
         cmds.setAttr("defaultResolution.width", width)

openpype/settings/defaults/project_settings/maya.json

@@ -64,6 +64,7 @@
             "image_prefix": "<Scene>/<RenderLayer>/<RenderLayer>_<RenderPass>",
             "image_format": "exr",
             "multilayer_exr": true,
+            "remove_aovs": true,
             "tiled": true,
             "aov_list": [],
             "additional_options": []

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

@@ -69,6 +69,11 @@
                   "label": "Multilayer (exr)",
                   "type": "boolean"
                 },
+                {
+                  "key": "remove_aovs",
+                  "label": "Remove AOVs",
+                  "type": "boolean"
+                },
                 {
                   "key": "tiled",
                   "label": "Tiled (tif, exr)",