Render: move editor/render module to c++

Doing this in preparation for some work on asset preview generation.

Differential Revision: https://developer.blender.org/D13676

1 files changed, 2560 insertions, 0 deletions

diff --git a/source/blender/editors/render/render_shading.cc b/source/blender/editors/render/render_shading.cc
new file mode 100644
index 00000000000..a96e06e6444
--- /dev/null
+++ b/source/blender/editors/render/render_shading.cc
@@ -0,0 +1,2560 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2009 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup edrend
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_curve_types.h"
+#include "DNA_light_types.h"
+#include "DNA_lightprobe_types.h"
+#include "DNA_material_types.h"
+#include "DNA_node_types.h"
+#include "DNA_object_types.h"
+#include "DNA_particle_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_space_types.h"
+#include "DNA_world_types.h"
+
+#include "BLI_listbase.h"
+#include "BLI_math_vector.h"
+#include "BLI_utildefines.h"
+
+#include "BLT_translation.h"
+
+#include "BKE_anim_data.h"
+#include "BKE_animsys.h"
+#include "BKE_brush.h"
+#include "BKE_context.h"
+#include "BKE_curve.h"
+#include "BKE_editmesh.h"
+#include "BKE_global.h"
+#include "BKE_image.h"
+#include "BKE_layer.h"
+#include "BKE_lib_id.h"
+#include "BKE_linestyle.h"
+#include "BKE_main.h"
+#include "BKE_material.h"
+#include "BKE_node.h"
+#include "BKE_object.h"
+#include "BKE_report.h"
+#include "BKE_scene.h"
+#include "BKE_texture.h"
+#include "BKE_vfont.h"
+#include "BKE_workspace.h"
+#include "BKE_world.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_build.h"
+
+#ifdef WITH_FREESTYLE
+#  include "BKE_freestyle.h"
+#  include "FRS_freestyle.h"
+#  include "RNA_enum_types.h"
+#endif
+
+#include "RNA_access.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_curve.h"
+#include "ED_mesh.h"
+#include "ED_node.h"
+#include "ED_object.h"
+#include "ED_paint.h"
+#include "ED_render.h"
+#include "ED_scene.h"
+#include "ED_screen.h"
+
+#include "RNA_define.h"
+
+#include "UI_interface.h"
+
+#include "RE_engine.h"
+#include "RE_pipeline.h"
+
+#include "engines/eevee/eevee_lightcache.h"
+
+#include "render_intern.hh" /* own include */
+
+static bool object_materials_supported_poll_ex(bContext *C, const Object *ob);
+
+/* -------------------------------------------------------------------- */
+/** \name Local Utilities
+ * \{ */
+
+static bool object_array_for_shading_edit_mode_enabled_filter(const Object *ob, void *user_data)
+{
+  bContext *C = static_cast<bContext *>(user_data);
+  if (object_materials_supported_poll_ex(C, ob)) {
+    if (BKE_object_is_in_editmode(ob) == true) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static Object **object_array_for_shading_edit_mode_enabled(bContext *C, uint *r_objects_len)
+{
+  return ED_object_array_in_mode_or_selected(
+      C, object_array_for_shading_edit_mode_enabled_filter, C, r_objects_len);
+}
+
+static bool object_array_for_shading_edit_mode_disabled_filter(const Object *ob, void *user_data)
+{
+  bContext *C = static_cast<bContext *>(user_data);
+  if (object_materials_supported_poll_ex(C, ob)) {
+    if (BKE_object_is_in_editmode(ob) == false) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static Object **object_array_for_shading_edit_mode_disabled(bContext *C, uint *r_objects_len)
+{
+  return ED_object_array_in_mode_or_selected(
+      C, object_array_for_shading_edit_mode_disabled_filter, C, r_objects_len);
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Shared Operator Poll Functions
+ * \{ */
+
+static bool object_materials_supported_poll_ex(bContext *C, const Object *ob)
+{
+  if (!ED_operator_object_active_local_editable_ex(C, ob)) {
+    return false;
+  }
+  if (!OB_TYPE_SUPPORT_MATERIAL(ob->type)) {
+    return false;
+  }
+
+  /* Material linked to object. */
+  if (ob->matbits && ob->actcol && ob->matbits[ob->actcol - 1]) {
+    return true;
+  }
+
+  /* Material linked to obdata. */
+  const ID *data = static_cast<ID *>(ob->data);
+  return (data && !ID_IS_LINKED(data) && !ID_IS_OVERRIDE_LIBRARY(data));
+}
+
+static bool object_materials_supported_poll(bContext *C)
+{
+  Object *ob = ED_object_context(C);
+  return object_materials_supported_poll_ex(C, ob);
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Add Operator
+ * \{ */
+
+static int material_slot_add_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Main *bmain = CTX_data_main(C);
+  Object *ob = ED_object_context(C);
+
+  if (!ob) {
+    return OPERATOR_CANCELLED;
+  }
+
+  BKE_object_material_slot_add(bmain, ob);
+
+  if (ob->mode & OB_MODE_TEXTURE_PAINT) {
+    Scene *scene = CTX_data_scene(C);
+    ED_paint_proj_mesh_data_check(scene, ob, NULL, NULL, NULL, NULL);
+    WM_event_add_notifier(C, NC_SCENE | ND_TOOLSETTINGS, NULL);
+  }
+
+  WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+  WM_event_add_notifier(C, NC_OBJECT | ND_OB_SHADING, ob);
+  WM_event_add_notifier(C, NC_MATERIAL | ND_SHADING_PREVIEW, ob);
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_material_slot_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Material Slot";
+  ot->idname = "OBJECT_OT_material_slot_add";
+  ot->description = "Add a new material slot";
+
+  /* api callbacks */
+  ot->exec = material_slot_add_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Remove Operator
+ * \{ */
+
+static int material_slot_remove_exec(bContext *C, wmOperator *op)
+{
+  Object *ob = ED_object_context(C);
+
+  if (!ob) {
+    return OPERATOR_CANCELLED;
+  }
+
+  /* Removing material slots in edit mode screws things up, see bug T21822. */
+  if (ob == CTX_data_edit_object(C)) {
+    BKE_report(op->reports, RPT_ERROR, "Unable to remove material slot in edit mode");
+    return OPERATOR_CANCELLED;
+  }
+
+  BKE_object_material_slot_remove(CTX_data_main(C), ob);
+
+  if (ob->mode & OB_MODE_TEXTURE_PAINT) {
+    Scene *scene = CTX_data_scene(C);
+    ED_paint_proj_mesh_data_check(scene, ob, NULL, NULL, NULL, NULL);
+    WM_event_add_notifier(C, NC_SCENE | ND_TOOLSETTINGS, NULL);
+  }
+
+  DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
+  WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+  WM_event_add_notifier(C, NC_OBJECT | ND_OB_SHADING, ob);
+  WM_event_add_notifier(C, NC_MATERIAL | ND_SHADING_PREVIEW, ob);
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_material_slot_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Material Slot";
+  ot->idname = "OBJECT_OT_material_slot_remove";
+  ot->description = "Remove the selected material slot";
+
+  /* api callbacks */
+  ot->exec = material_slot_remove_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Assign Operator
+ * \{ */
+
+static int material_slot_assign_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  View3D *v3d = CTX_wm_view3d(C);
+  bool changed_multi = false;
+
+  Object *obact = CTX_data_active_object(C);
+  const Material *mat_active = obact ? BKE_object_material_get(obact, obact->actcol) : NULL;
+
+  uint objects_len = 0;
+  Object **objects = object_array_for_shading_edit_mode_enabled(C, &objects_len);
+  for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
+    Object *ob = objects[ob_index];
+    short mat_nr_active = -1;
+
+    if (ob->totcol == 0) {
+      continue;
+    }
+    if (obact && (mat_active == BKE_object_material_get(ob, obact->actcol))) {
+      /* Avoid searching since there may be multiple slots with the same material.
+       * For the active object or duplicates: match the material slot index first. */
+      mat_nr_active = obact->actcol - 1;
+    }
+    else {
+      /* Find the first matching material.
+       * NOTE: there may be multiple but that's not a common use case. */
+      for (int i = 0; i < ob->totcol; i++) {
+        const Material *mat = BKE_object_material_get(ob, i + 1);
+        if (mat_active == mat) {
+          mat_nr_active = i;
+          break;
+        }
+      }
+      if (mat_nr_active == -1) {
+        continue;
+      }
+    }
+
+    bool changed = false;
+    if (ob->type == OB_MESH) {
+      BMEditMesh *em = BKE_editmesh_from_object(ob);
+      BMFace *efa;
+      BMIter iter;
+
+      if (em) {
+        BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
+          if (BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
+            changed = true;
+            efa->mat_nr = mat_nr_active;
+          }
+        }
+      }
+    }
+    else if (ELEM(ob->type, OB_CURVE, OB_SURF)) {
+      Nurb *nu;
+      ListBase *nurbs = BKE_curve_editNurbs_get((Curve *)ob->data);
+
+      if (nurbs) {
+        for (nu = static_cast<Nurb *>(nurbs->first); nu; nu = nu->next) {
+          if (ED_curve_nurb_select_check(v3d, nu)) {
+            changed = true;
+            nu->mat_nr = mat_nr_active;
+          }
+        }
+      }
+    }
+    else if (ob->type == OB_FONT) {
+      EditFont *ef = ((Curve *)ob->data)->editfont;
+      int i, selstart, selend;
+
+      if (ef && BKE_vfont_select_get(ob, &selstart, &selend)) {
+        for (i = selstart; i <= selend; i++) {
+          changed = true;
+          ef->textbufinfo[i].mat_nr = mat_nr_active + 1;
+        }
+      }
+    }
+
+    if (changed) {
+      changed_multi = true;
+      DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
+      WM_event_add_notifier(C, NC_GEOM | ND_DATA, ob->data);
+    }
+  }
+  MEM_freeN(objects);
+
+  return (changed_multi) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
+}
+
+void OBJECT_OT_material_slot_assign(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Assign Material Slot";
+  ot->idname = "OBJECT_OT_material_slot_assign";
+  ot->description = "Assign active material slot to selection";
+
+  /* api callbacks */
+  ot->exec = material_slot_assign_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot (De)Select Operator
+ * \{ */
+
+static int material_slot_de_select(bContext *C, bool select)
+{
+  bool changed_multi = false;
+  Object *obact = CTX_data_active_object(C);
+  const Material *mat_active = obact ? BKE_object_material_get(obact, obact->actcol) : NULL;
+
+  uint objects_len = 0;
+  Object **objects = object_array_for_shading_edit_mode_enabled(C, &objects_len);
+  for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
+    Object *ob = objects[ob_index];
+    short mat_nr_active = -1;
+
+    if (ob->totcol == 0) {
+      continue;
+    }
+    if (obact && (mat_active == BKE_object_material_get(ob, obact->actcol))) {
+      /* Avoid searching since there may be multiple slots with the same material.
+       * For the active object or duplicates: match the material slot index first. */
+      mat_nr_active = obact->actcol - 1;
+    }
+    else {
+      /* Find the first matching material.
+       * NOTE: there may be multiple but that's not a common use case. */
+      for (int i = 0; i < ob->totcol; i++) {
+        const Material *mat = BKE_object_material_get(ob, i + 1);
+        if (mat_active == mat) {
+          mat_nr_active = i;
+          break;
+        }
+      }
+      if (mat_nr_active == -1) {
+        continue;
+      }
+    }
+
+    bool changed = false;
+
+    if (ob->type == OB_MESH) {
+      BMEditMesh *em = BKE_editmesh_from_object(ob);
+
+      if (em) {
+        changed = EDBM_deselect_by_material(em, mat_nr_active, select);
+      }
+    }
+    else if (ELEM(ob->type, OB_CURVE, OB_SURF)) {
+      ListBase *nurbs = BKE_curve_editNurbs_get((Curve *)ob->data);
+      Nurb *nu;
+      BPoint *bp;
+      BezTriple *bezt;
+      int a;
+
+      if (nurbs) {
+        for (nu = static_cast<Nurb *>(nurbs->first); nu; nu = nu->next) {
+          if (nu->mat_nr == mat_nr_active) {
+            if (nu->bezt) {
+              a = nu->pntsu;
+              bezt = nu->bezt;
+              while (a--) {
+                if (bezt->hide == 0) {
+                  changed = true;
+                  if (select) {
+                    bezt->f1 |= SELECT;
+                    bezt->f2 |= SELECT;
+                    bezt->f3 |= SELECT;
+                  }
+                  else {
+                    bezt->f1 &= ~SELECT;
+                    bezt->f2 &= ~SELECT;
+                    bezt->f3 &= ~SELECT;
+                  }
+                }
+                bezt++;
+              }
+            }
+            else if (nu->bp) {
+              a = nu->pntsu * nu->pntsv;
+              bp = nu->bp;
+              while (a--) {
+                if (bp->hide == 0) {
+                  changed = true;
+                  if (select) {
+                    bp->f1 |= SELECT;
+                  }
+                  else {
+                    bp->f1 &= ~SELECT;
+                  }
+                }
+                bp++;
+              }
+            }
+          }
+        }
+      }
+    }
+
+    if (changed) {
+      changed_multi = true;
+      DEG_id_tag_update(static_cast<ID *>(ob->data), ID_RECALC_SELECT);
+      WM_event_add_notifier(C, NC_GEOM | ND_SELECT, ob->data);
+    }
+  }
+
+  MEM_freeN(objects);
+
+  return (changed_multi) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
+}
+
+static int material_slot_select_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  return material_slot_de_select(C, true);
+}
+
+void OBJECT_OT_material_slot_select(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Select Material Slot";
+  ot->idname = "OBJECT_OT_material_slot_select";
+  ot->description = "Select by active material slot";
+
+  /* api callbacks */
+  ot->exec = material_slot_select_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+static int material_slot_deselect_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  return material_slot_de_select(C, false);
+}
+
+void OBJECT_OT_material_slot_deselect(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Deselect Material Slot";
+  ot->idname = "OBJECT_OT_material_slot_deselect";
+  ot->description = "Deselect by active material slot";
+
+  /* api callbacks */
+  ot->exec = material_slot_deselect_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Copy Operator
+ * \{ */
+
+static int material_slot_copy_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Main *bmain = CTX_data_main(C);
+  Object *ob = ED_object_context(C);
+  Material ***matar_obdata;
+
+  if (!ob || !(matar_obdata = BKE_object_material_array_p(ob))) {
+    return OPERATOR_CANCELLED;
+  }
+
+  BLI_assert(ob->totcol == *BKE_object_material_len_p(ob));
+
+  Material ***matar_object = &ob->mat;
+
+  Material **matar = static_cast<Material **>(
+      MEM_callocN(sizeof(*matar) * (size_t)ob->totcol, __func__));
+  for (int i = ob->totcol; i--;) {
+    matar[i] = ob->matbits[i] ? (*matar_object)[i] : (*matar_obdata)[i];
+  }
+
+  CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+    if (ob != ob_iter && BKE_object_material_array_p(ob_iter)) {
+      /* If we are using the same obdata, we only assign slots in ob_iter that are using object
+       * materials, and not obdata ones. */
+      const bool is_same_obdata = ob->data == ob_iter->data;
+      BKE_object_material_array_assign(bmain, ob_iter, &matar, ob->totcol, is_same_obdata);
+
+      if (ob_iter->totcol == ob->totcol) {
+        ob_iter->actcol = ob->actcol;
+        DEG_id_tag_update(&ob_iter->id, ID_RECALC_GEOMETRY);
+        WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob_iter);
+      }
+    }
+  }
+  CTX_DATA_END;
+
+  MEM_freeN(matar);
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_material_slot_copy(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Copy Material to Selected";
+  ot->idname = "OBJECT_OT_material_slot_copy";
+  ot->description = "Copy material to selected objects";
+
+  /* api callbacks */
+  ot->exec = material_slot_copy_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Move Operator
+ * \{ */
+
+static int material_slot_move_exec(bContext *C, wmOperator *op)
+{
+  Object *ob = ED_object_context(C);
+
+  uint *slot_remap;
+  int index_pair[2];
+
+  int dir = RNA_enum_get(op->ptr, "direction");
+
+  if (!ob || ob->totcol < 2) {
+    return OPERATOR_CANCELLED;
+  }
+
+  /* up */
+  if (dir == 1 && ob->actcol > 1) {
+    index_pair[0] = ob->actcol - 2;
+    index_pair[1] = ob->actcol - 1;
+    ob->actcol--;
+  }
+  /* down */
+  else if (dir == -1 && ob->actcol < ob->totcol) {
+    index_pair[0] = ob->actcol - 1;
+    index_pair[1] = ob->actcol - 0;
+    ob->actcol++;
+  }
+  else {
+    return OPERATOR_CANCELLED;
+  }
+
+  slot_remap = static_cast<uint *>(MEM_mallocN(sizeof(uint) * ob->totcol, __func__));
+
+  range_vn_u(slot_remap, ob->totcol, 0);
+
+  slot_remap[index_pair[0]] = index_pair[1];
+  slot_remap[index_pair[1]] = index_pair[0];
+
+  BKE_object_material_remap(ob, slot_remap);
+
+  MEM_freeN(slot_remap);
+
+  DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
+  WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+  WM_event_add_notifier(C, NC_OBJECT | ND_DATA, ob);
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_material_slot_move(wmOperatorType *ot)
+{
+  static const EnumPropertyItem material_slot_move[] = {
+      {1, "UP", 0, "Up", ""},
+      {-1, "DOWN", 0, "Down", ""},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Move Material";
+  ot->idname = "OBJECT_OT_material_slot_move";
+  ot->description = "Move the active material up/down in the list";
+
+  /* api callbacks */
+  ot->exec = material_slot_move_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+  RNA_def_enum(ot->srna,
+               "direction",
+               material_slot_move,
+               0,
+               "Direction",
+               "Direction to move the active material towards");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Slot Remove Unused Operator
+ * \{ */
+
+static int material_slot_remove_unused_exec(bContext *C, wmOperator *op)
+{
+  /* Removing material slots in edit mode screws things up, see bug T21822. */
+  Object *ob_active = CTX_data_active_object(C);
+  if (ob_active && BKE_object_is_in_editmode(ob_active)) {
+    BKE_report(op->reports, RPT_ERROR, "Unable to remove material slot in edit mode");
+    return OPERATOR_CANCELLED;
+  }
+
+  Main *bmain = CTX_data_main(C);
+  int removed = 0;
+
+  uint objects_len = 0;
+  Object **objects = object_array_for_shading_edit_mode_disabled(C, &objects_len);
+  for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
+    Object *ob = objects[ob_index];
+    int actcol = ob->actcol;
+    for (int slot = 1; slot <= ob->totcol; slot++) {
+      while (slot <= ob->totcol && !BKE_object_material_slot_used(ob, slot)) {
+        ob->actcol = slot;
+        BKE_object_material_slot_remove(bmain, ob);
+
+        if (actcol >= slot) {
+          actcol--;
+        }
+
+        removed++;
+      }
+    }
+    ob->actcol = actcol;
+
+    DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
+  }
+  MEM_freeN(objects);
+
+  if (!removed) {
+    return OPERATOR_CANCELLED;
+  }
+
+  BKE_reportf(op->reports, RPT_INFO, "Removed %d slots", removed);
+
+  if (ob_active->mode & OB_MODE_TEXTURE_PAINT) {
+    Scene *scene = CTX_data_scene(C);
+    ED_paint_proj_mesh_data_check(scene, ob_active, NULL, NULL, NULL, NULL);
+    WM_event_add_notifier(C, NC_SCENE | ND_TOOLSETTINGS, NULL);
+  }
+
+  WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob_active);
+  WM_event_add_notifier(C, NC_OBJECT | ND_OB_SHADING, ob_active);
+  WM_event_add_notifier(C, NC_MATERIAL | ND_SHADING_PREVIEW, ob_active);
+
+  return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_material_slot_remove_unused(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Unused Slots";
+  ot->idname = "OBJECT_OT_material_slot_remove_unused";
+  ot->description = "Remove unused material slots";
+
+  /* api callbacks */
+  ot->exec = material_slot_remove_unused_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name New Material Operator
+ * \{ */
+
+static int new_material_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Material *ma = static_cast<Material *>(
+      CTX_data_pointer_get_type(C, "material", &RNA_Material).data);
+  Main *bmain = CTX_data_main(C);
+  PointerRNA ptr, idptr;
+  PropertyRNA *prop;
+
+  /* hook into UI */
+  UI_context_active_but_prop_get_templateID(C, &ptr, &prop);
+
+  Object *ob = static_cast<Object *>((prop && RNA_struct_is_a(ptr.type, &RNA_Object)) ? ptr.data :
+                                                                                        NULL);
+
+  /* add or copy material */
+  if (ma) {
+    Material *new_ma = (Material *)BKE_id_copy_ex(
+        bmain, &ma->id, NULL, LIB_ID_COPY_DEFAULT | LIB_ID_COPY_ACTIONS);
+    ma = new_ma;
+  }
+  else {
+    const char *name = DATA_("Material");
+    if (!(ob != NULL && ob->type == OB_GPENCIL)) {
+      ma = BKE_material_add(bmain, name);
+    }
+    else {
+      ma = BKE_gpencil_material_add(bmain, name);
+    }
+    ED_node_shader_default(C, &ma->id);
+    ma->use_nodes = true;
+  }
+
+  if (prop) {
+    if (ob != NULL) {
+      /* Add slot follows user-preferences for creating new slots,
+       * RNA pointer assignment doesn't, see: T60014. */
+      if (BKE_object_material_get_p(ob, ob->actcol) == NULL) {
+        BKE_object_material_slot_add(bmain, ob);
+      }
+    }
+
+    /* when creating new ID blocks, use is already 1, but RNA
+     * pointer use also increases user, so this compensates it */
+    id_us_min(&ma->id);
+
+    RNA_id_pointer_create(&ma->id, &idptr);
+    RNA_property_pointer_set(&ptr, prop, idptr, NULL);
+    RNA_property_update(C, &ptr, prop);
+  }
+
+  WM_event_add_notifier(C, NC_MATERIAL | NA_ADDED, ma);
+
+  return OPERATOR_FINISHED;
+}
+
+void MATERIAL_OT_new(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "New Material";
+  ot->idname = "MATERIAL_OT_new";
+  ot->description = "Add a new material";
+
+  /* api callbacks */
+  ot->exec = new_material_exec;
+  ot->poll = object_materials_supported_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name New Texture Operator
+ * \{ */
+
+static int new_texture_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Tex *tex = static_cast<Tex *>(CTX_data_pointer_get_type(C, "texture", &RNA_Texture).data);
+  Main *bmain = CTX_data_main(C);
+  PointerRNA ptr, idptr;
+  PropertyRNA *prop;
+
+  /* add or copy texture */
+  if (tex) {
+    tex = (Tex *)BKE_id_copy(bmain, &tex->id);
+  }
+  else {
+    tex = BKE_texture_add(bmain, DATA_("Texture"));
+  }
+
+  /* hook into UI */
+  UI_context_active_but_prop_get_templateID(C, &ptr, &prop);
+
+  if (prop) {
+    /* when creating new ID blocks, use is already 1, but RNA
+     * pointer use also increases user, so this compensates it */
+    id_us_min(&tex->id);
+
+    RNA_id_pointer_create(&tex->id, &idptr);
+    RNA_property_pointer_set(&ptr, prop, idptr, NULL);
+    RNA_property_update(C, &ptr, prop);
+  }
+
+  WM_event_add_notifier(C, NC_TEXTURE | NA_ADDED, tex);
+
+  return OPERATOR_FINISHED;
+}
+
+void TEXTURE_OT_new(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "New Texture";
+  ot->idname = "TEXTURE_OT_new";
+  ot->description = "Add a new texture";
+
+  /* api callbacks */
+  ot->exec = new_texture_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name new world operator
+ * \{ */
+
+static int new_world_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  World *wo = static_cast<World *>(CTX_data_pointer_get_type(C, "world", &RNA_World).data);
+  Main *bmain = CTX_data_main(C);
+  PointerRNA ptr, idptr;
+  PropertyRNA *prop;
+
+  /* add or copy world */
+  if (wo) {
+    World *new_wo = (World *)BKE_id_copy_ex(
+        bmain, &wo->id, NULL, LIB_ID_COPY_DEFAULT | LIB_ID_COPY_ACTIONS);
+    wo = new_wo;
+  }
+  else {
+    wo = BKE_world_add(bmain, DATA_("World"));
+    ED_node_shader_default(C, &wo->id);
+    wo->use_nodes = true;
+  }
+
+  /* hook into UI */
+  UI_context_active_but_prop_get_templateID(C, &ptr, &prop);
+
+  if (prop) {
+    /* when creating new ID blocks, use is already 1, but RNA
+     * pointer use also increases user, so this compensates it */
+    id_us_min(&wo->id);
+
+    RNA_id_pointer_create(&wo->id, &idptr);
+    RNA_property_pointer_set(&ptr, prop, idptr, NULL);
+    RNA_property_update(C, &ptr, prop);
+  }
+
+  WM_event_add_notifier(C, NC_WORLD | NA_ADDED, wo);
+
+  return OPERATOR_FINISHED;
+}
+
+void WORLD_OT_new(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "New World";
+  ot->idname = "WORLD_OT_new";
+  ot->description = "Create a new world Data-Block";
+
+  /* api callbacks */
+  ot->exec = new_world_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Render Layer Add Operator
+ * \{ */
+
+static int view_layer_add_exec(bContext *C, wmOperator *op)
+{
+  wmWindow *win = CTX_wm_window(C);
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer_current = WM_window_get_active_view_layer(win);
+  ViewLayer *view_layer_new = BKE_view_layer_add(
+      scene, view_layer_current->name, view_layer_current, RNA_enum_get(op->ptr, "type"));
+
+  if (win) {
+    WM_window_set_active_view_layer(win, view_layer_new);
+  }
+
+  DEG_id_tag_update(&scene->id, 0);
+  DEG_relations_tag_update(CTX_data_main(C));
+  WM_event_add_notifier(C, NC_SCENE | ND_LAYER, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_view_layer_add(wmOperatorType *ot)
+{
+  static EnumPropertyItem type_items[] = {
+      {VIEWLAYER_ADD_NEW, "NEW", 0, "New", "Add a new view layer"},
+      {VIEWLAYER_ADD_COPY, "COPY", 0, "Copy Settings", "Copy settings of current view layer"},
+      {VIEWLAYER_ADD_EMPTY,
+       "EMPTY",
+       0,
+       "Blank",
+       "Add a new view layer with all collections disabled"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Add View Layer";
+  ot->idname = "SCENE_OT_view_layer_add";
+  ot->description = "Add a view layer";
+
+  /* api callbacks */
+  ot->exec = view_layer_add_exec;
+  ot->invoke = WM_menu_invoke;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* properties */
+  ot->prop = RNA_def_enum(ot->srna, "type", type_items, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Render Layer Remove Operator
+ * \{ */
+
+static bool view_layer_remove_poll(bContext *C)
+{
+  Scene *scene = CTX_data_scene(C);
+  return (scene->view_layers.first != scene->view_layers.last);
+}
+
+static int view_layer_remove_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Main *bmain = CTX_data_main(C);
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  if (!ED_scene_view_layer_delete(bmain, scene, view_layer, NULL)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_view_layer_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove View Layer";
+  ot->idname = "SCENE_OT_view_layer_remove";
+  ot->description = "Remove the selected view layer";
+
+  /* api callbacks */
+  ot->exec = view_layer_remove_exec;
+  ot->poll = view_layer_remove_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name View Layer Add AOV Operator
+ * \{ */
+
+static int view_layer_add_aov_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  BKE_view_layer_add_aov(view_layer);
+
+  RenderEngineType *engine_type = RE_engines_find(scene->r.engine);
+  if (engine_type->update_render_passes) {
+    RenderEngine *engine = RE_engine_create(engine_type);
+    if (engine) {
+      BKE_view_layer_verify_aov(engine, scene, view_layer);
+    }
+    RE_engine_free(engine);
+    engine = NULL;
+  }
+
+  if (scene->nodetree) {
+    ntreeCompositUpdateRLayers(scene->nodetree);
+  }
+
+  DEG_id_tag_update(&scene->id, 0);
+  DEG_relations_tag_update(CTX_data_main(C));
+  WM_event_add_notifier(C, NC_SCENE | ND_LAYER, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_view_layer_add_aov(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add AOV";
+  ot->idname = "SCENE_OT_view_layer_add_aov";
+  ot->description = "Add a Shader AOV";
+
+  /* api callbacks */
+  ot->exec = view_layer_add_aov_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name View Layer Remove AOV Operator
+ * \{ */
+
+static int view_layer_remove_aov_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  if (view_layer->active_aov == NULL) {
+    return OPERATOR_FINISHED;
+  }
+
+  BKE_view_layer_remove_aov(view_layer, view_layer->active_aov);
+
+  RenderEngineType *engine_type = RE_engines_find(scene->r.engine);
+  if (engine_type->update_render_passes) {
+    RenderEngine *engine = RE_engine_create(engine_type);
+    if (engine) {
+      BKE_view_layer_verify_aov(engine, scene, view_layer);
+    }
+    RE_engine_free(engine);
+    engine = NULL;
+  }
+
+  if (scene->nodetree) {
+    ntreeCompositUpdateRLayers(scene->nodetree);
+  }
+
+  DEG_id_tag_update(&scene->id, 0);
+  DEG_relations_tag_update(CTX_data_main(C));
+  WM_event_add_notifier(C, NC_SCENE | ND_LAYER, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_view_layer_remove_aov(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove AOV";
+  ot->idname = "SCENE_OT_view_layer_remove_aov";
+  ot->description = "Remove Active AOV";
+
+  /* api callbacks */
+  ot->exec = view_layer_remove_aov_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Light Cache Bake Operator
+ * \{ */
+
+enum {
+  LIGHTCACHE_SUBSET_ALL = 0,
+  LIGHTCACHE_SUBSET_DIRTY,
+  LIGHTCACHE_SUBSET_CUBE,
+};
+
+static void light_cache_bake_tag_cache(Scene *scene, wmOperator *op)
+{
+  if (scene->eevee.light_cache_data != NULL) {
+    int subset = RNA_enum_get(op->ptr, "subset");
+    switch (subset) {
+      case LIGHTCACHE_SUBSET_ALL:
+        scene->eevee.light_cache_data->flag |= LIGHTCACHE_UPDATE_GRID | LIGHTCACHE_UPDATE_CUBE;
+        break;
+      case LIGHTCACHE_SUBSET_CUBE:
+        scene->eevee.light_cache_data->flag |= LIGHTCACHE_UPDATE_CUBE;
+        break;
+      case LIGHTCACHE_SUBSET_DIRTY:
+        /* Leave tag untouched. */
+        break;
+    }
+  }
+}
+
+/* catch esc */
+static int light_cache_bake_modal(bContext *C, wmOperator *op, const wmEvent *event)
+{
+  Scene *scene = (Scene *)op->customdata;
+
+  /* no running blender, remove handler and pass through */
+  if (0 == WM_jobs_test(CTX_wm_manager(C), scene, WM_JOB_TYPE_RENDER)) {
+    LightCache *lcache = scene->eevee.light_cache_data;
+    if (lcache && (lcache->flag & LIGHTCACHE_INVALID)) {
+      BKE_report(op->reports, RPT_ERROR, "Lightcache cannot allocate resources");
+      return OPERATOR_CANCELLED;
+    }
+    return OPERATOR_FINISHED | OPERATOR_PASS_THROUGH;
+  }
+
+  /* running render */
+  switch (event->type) {
+    case EVT_ESCKEY:
+      return OPERATOR_RUNNING_MODAL;
+  }
+  return OPERATOR_PASS_THROUGH;
+}
+
+static void light_cache_bake_cancel(bContext *C, wmOperator *op)
+{
+  wmWindowManager *wm = CTX_wm_manager(C);
+  Scene *scene = (Scene *)op->customdata;
+
+  /* kill on cancel, because job is using op->reports */
+  WM_jobs_kill_type(wm, scene, WM_JOB_TYPE_RENDER);
+}
+
+/* executes blocking render */
+static int light_cache_bake_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  Main *bmain = CTX_data_main(C);
+  Scene *scene = CTX_data_scene(C);
+
+  G.is_break = false;
+
+  /* TODO: abort if selected engine is not eevee. */
+  void *rj = EEVEE_lightbake_job_data_alloc(bmain, view_layer, scene, false, scene->r.cfra);
+
+  light_cache_bake_tag_cache(scene, op);
+
+  short stop = 0, do_update;
+  float progress; /* Not actually used. */
+  EEVEE_lightbake_job(rj, &stop, &do_update, &progress);
+  EEVEE_lightbake_job_data_free(rj);
+
+  /* No redraw needed, we leave state as we entered it. */
+  ED_update_for_newframe(bmain, CTX_data_depsgraph_pointer(C));
+
+  WM_event_add_notifier(C, NC_SCENE | NA_EDITED, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+static int light_cache_bake_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
+{
+  wmWindowManager *wm = CTX_wm_manager(C);
+  wmWindow *win = CTX_wm_window(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  Main *bmain = CTX_data_main(C);
+  Scene *scene = CTX_data_scene(C);
+  int delay = RNA_int_get(op->ptr, "delay");
+
+  wmJob *wm_job = EEVEE_lightbake_job_create(
+      wm, win, bmain, view_layer, scene, delay, scene->r.cfra);
+
+  if (!wm_job) {
+    return OPERATOR_CANCELLED;
+  }
+
+  /* add modal handler for ESC */
+  WM_event_add_modal_handler(C, op);
+
+  light_cache_bake_tag_cache(scene, op);
+
+  /* store actual owner of job, so modal operator could check for it,
+   * the reason of this is that active scene could change when rendering
+   * several layers from compositor T31800. */
+  op->customdata = scene;
+
+  WM_jobs_start(wm, wm_job);
+
+  WM_cursor_wait(false);
+
+  return OPERATOR_RUNNING_MODAL;
+}
+
+void SCENE_OT_light_cache_bake(wmOperatorType *ot)
+{
+  static const EnumPropertyItem light_cache_subset_items[] = {
+      {LIGHTCACHE_SUBSET_ALL,
+       "ALL",
+       0,
+       "All Light Probes",
+       "Bake both irradiance grids and reflection cubemaps"},
+      {LIGHTCACHE_SUBSET_DIRTY,
+       "DIRTY",
+       0,
+       "Dirty Only",
+       "Only bake light probes that are marked as dirty"},
+      {LIGHTCACHE_SUBSET_CUBE,
+       "CUBEMAPS",
+       0,
+       "Cubemaps Only",
+       "Try to only bake reflection cubemaps if irradiance grids are up to date"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Bake Light Cache";
+  ot->idname = "SCENE_OT_light_cache_bake";
+  ot->description = "Bake the active view layer lighting";
+
+  /* api callbacks */
+  ot->invoke = light_cache_bake_invoke;
+  ot->modal = light_cache_bake_modal;
+  ot->cancel = light_cache_bake_cancel;
+  ot->exec = light_cache_bake_exec;
+
+  ot->prop = RNA_def_int(ot->srna,
+                         "delay",
+                         0,
+                         0,
+                         2000,
+                         "Delay",
+                         "Delay in millisecond before baking starts",
+                         0,
+                         2000);
+  RNA_def_property_flag(ot->prop, PROP_SKIP_SAVE);
+
+  ot->prop = RNA_def_enum(
+      ot->srna, "subset", light_cache_subset_items, 0, "Subset", "Subset of probes to update");
+  RNA_def_property_flag(ot->prop, PROP_SKIP_SAVE);
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Light Cache Free Operator
+ * \{ */
+
+static bool light_cache_free_poll(bContext *C)
+{
+  Scene *scene = CTX_data_scene(C);
+
+  return scene->eevee.light_cache_data;
+}
+
+static int light_cache_free_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+
+  /* kill potential bake job first (see T57011) */
+  wmWindowManager *wm = CTX_wm_manager(C);
+  WM_jobs_kill_type(wm, scene, WM_JOB_TYPE_LIGHT_BAKE);
+
+  if (!scene->eevee.light_cache_data) {
+    return OPERATOR_CANCELLED;
+  }
+
+  EEVEE_lightcache_free(scene->eevee.light_cache_data);
+  scene->eevee.light_cache_data = NULL;
+
+  EEVEE_lightcache_info_update(&scene->eevee);
+
+  DEG_id_tag_update(&scene->id, ID_RECALC_COPY_ON_WRITE);
+
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_light_cache_free(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Delete Light Cache";
+  ot->idname = "SCENE_OT_light_cache_free";
+  ot->description = "Delete cached indirect lighting";
+
+  /* api callbacks */
+  ot->exec = light_cache_free_exec;
+  ot->poll = light_cache_free_poll;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Render View Remove Operator
+ * \{ */
+
+static bool render_view_remove_poll(bContext *C)
+{
+  Scene *scene = CTX_data_scene(C);
+
+  /* don't allow user to remove "left" and "right" views */
+  return scene->r.actview > 1;
+}
+
+static int render_view_add_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+
+  BKE_scene_add_render_view(scene, NULL);
+  scene->r.actview = BLI_listbase_count(&scene->r.views) - 1;
+
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_render_view_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Render View";
+  ot->idname = "SCENE_OT_render_view_add";
+  ot->description = "Add a render view";
+
+  /* api callbacks */
+  ot->exec = render_view_add_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Render View Add Operator
+ * \{ */
+
+static int render_view_remove_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  SceneRenderView *rv = static_cast<SceneRenderView *>(
+      BLI_findlink(&scene->r.views, scene->r.actview));
+
+  if (!BKE_scene_remove_render_view(scene, rv)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_render_view_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Render View";
+  ot->idname = "SCENE_OT_render_view_remove";
+  ot->description = "Remove the selected render view";
+
+  /* api callbacks */
+  ot->exec = render_view_remove_exec;
+  ot->poll = render_view_remove_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+#ifdef WITH_FREESTYLE
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Module Add Operator
+ * \{ */
+
+static bool freestyle_linestyle_check_report(FreestyleLineSet *lineset, ReportList *reports)
+{
+  if (!lineset) {
+    BKE_report(reports,
+               RPT_ERROR,
+               "No active lineset and associated line style to manipulate the modifier");
+    return false;
+  }
+  if (!lineset->linestyle) {
+    BKE_report(reports,
+               RPT_ERROR,
+               "The active lineset does not have a line style (indicating data corruption)");
+    return false;
+  }
+
+  return true;
+}
+
+static bool freestyle_active_module_poll(bContext *C)
+{
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "freestyle_module", &RNA_FreestyleModuleSettings);
+  FreestyleModuleConfig *module = static_cast<FreestyleModuleConfig *>(ptr.data);
+
+  return module != NULL;
+}
+
+static int freestyle_module_add_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  BKE_freestyle_module_add(&view_layer->freestyle_config);
+
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_module_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Freestyle Module";
+  ot->idname = "SCENE_OT_freestyle_module_add";
+  ot->description = "Add a style module into the list of modules";
+
+  /* api callbacks */
+  ot->exec = freestyle_module_add_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Module Remove Operator
+ * \{ */
+
+static int freestyle_module_remove_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "freestyle_module", &RNA_FreestyleModuleSettings);
+  FreestyleModuleConfig *module = static_cast<FreestyleModuleConfig *>(ptr.data);
+
+  BKE_freestyle_module_delete(&view_layer->freestyle_config, module);
+
+  DEG_id_tag_update(&scene->id, 0);
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_module_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Freestyle Module";
+  ot->idname = "SCENE_OT_freestyle_module_remove";
+  ot->description = "Remove the style module from the stack";
+
+  /* api callbacks */
+  ot->poll = freestyle_active_module_poll;
+  ot->exec = freestyle_module_remove_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+static int freestyle_module_move_exec(bContext *C, wmOperator *op)
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "freestyle_module", &RNA_FreestyleModuleSettings);
+  FreestyleModuleConfig *module = static_cast<FreestyleModuleConfig *>(ptr.data);
+  int dir = RNA_enum_get(op->ptr, "direction");
+
+  if (BKE_freestyle_module_move(&view_layer->freestyle_config, module, dir)) {
+    DEG_id_tag_update(&scene->id, 0);
+    WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+  }
+
+  return OPERATOR_FINISHED;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Module Move Operator
+ * \{ */
+
+void SCENE_OT_freestyle_module_move(wmOperatorType *ot)
+{
+  static const EnumPropertyItem direction_items[] = {
+      {-1, "UP", 0, "Up", ""},
+      {1, "DOWN", 0, "Down", ""},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Move Freestyle Module";
+  ot->idname = "SCENE_OT_freestyle_module_move";
+  ot->description = "Change the position of the style module within in the list of style modules";
+
+  /* api callbacks */
+  ot->poll = freestyle_active_module_poll;
+  ot->exec = freestyle_module_move_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* props */
+  RNA_def_enum(ot->srna,
+               "direction",
+               direction_items,
+               0,
+               "Direction",
+               "Direction to move the chosen style module towards");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set Add Operator
+ * \{ */
+
+static int freestyle_lineset_add_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Main *bmain = CTX_data_main(C);
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  BKE_freestyle_lineset_add(bmain, &view_layer->freestyle_config, NULL);
+
+  DEG_id_tag_update(&scene->id, 0);
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_lineset_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Line Set";
+  ot->idname = "SCENE_OT_freestyle_lineset_add";
+  ot->description = "Add a line set into the list of line sets";
+
+  /* api callbacks */
+  ot->exec = freestyle_lineset_add_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set Copy Operator
+ * \{ */
+
+static bool freestyle_active_lineset_poll(bContext *C)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  if (!view_layer) {
+    return false;
+  }
+
+  return BKE_freestyle_lineset_get_active(&view_layer->freestyle_config) != NULL;
+}
+
+static int freestyle_lineset_copy_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  FRS_copy_active_lineset(&view_layer->freestyle_config);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_lineset_copy(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Copy Line Set";
+  ot->idname = "SCENE_OT_freestyle_lineset_copy";
+  ot->description = "Copy the active line set to a buffer";
+
+  /* api callbacks */
+  ot->exec = freestyle_lineset_copy_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set Paste Operator
+ * \{ */
+
+static int freestyle_lineset_paste_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  FRS_paste_active_lineset(&view_layer->freestyle_config);
+
+  DEG_id_tag_update(&scene->id, 0);
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_lineset_paste(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Paste Line Set";
+  ot->idname = "SCENE_OT_freestyle_lineset_paste";
+  ot->description = "Paste the buffer content to the active line set";
+
+  /* api callbacks */
+  ot->exec = freestyle_lineset_paste_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set Remove Operator
+ * \{ */
+
+static int freestyle_lineset_remove_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+
+  FRS_delete_active_lineset(&view_layer->freestyle_config);
+
+  DEG_id_tag_update(&scene->id, 0);
+  WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_lineset_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Line Set";
+  ot->idname = "SCENE_OT_freestyle_lineset_remove";
+  ot->description = "Remove the active line set from the list of line sets";
+
+  /* api callbacks */
+  ot->exec = freestyle_lineset_remove_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set Move Operator
+ * \{ */
+
+static int freestyle_lineset_move_exec(bContext *C, wmOperator *op)
+{
+  Scene *scene = CTX_data_scene(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  int dir = RNA_enum_get(op->ptr, "direction");
+
+  if (FRS_move_active_lineset(&view_layer->freestyle_config, dir)) {
+    DEG_id_tag_update(&scene->id, 0);
+    WM_event_add_notifier(C, NC_SCENE | ND_RENDER_OPTIONS, scene);
+  }
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_lineset_move(wmOperatorType *ot)
+{
+  static const EnumPropertyItem direction_items[] = {
+      {-1, "UP", 0, "Up", ""},
+      {1, "DOWN", 0, "Down", ""},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Move Line Set";
+  ot->idname = "SCENE_OT_freestyle_lineset_move";
+  ot->description = "Change the position of the active line set within the list of line sets";
+
+  /* api callbacks */
+  ot->exec = freestyle_lineset_move_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* props */
+  RNA_def_enum(ot->srna,
+               "direction",
+               direction_items,
+               0,
+               "Direction",
+               "Direction to move the active line set towards");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Line Set New Operator
+ * \{ */
+
+static int freestyle_linestyle_new_exec(bContext *C, wmOperator *op)
+{
+  Main *bmain = CTX_data_main(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+
+  if (!lineset) {
+    BKE_report(op->reports, RPT_ERROR, "No active lineset to add a new line style to");
+    return OPERATOR_CANCELLED;
+  }
+  if (lineset->linestyle) {
+    id_us_min(&lineset->linestyle->id);
+    lineset->linestyle = (FreestyleLineStyle *)BKE_id_copy(bmain, &lineset->linestyle->id);
+  }
+  else {
+    lineset->linestyle = BKE_linestyle_new(bmain, "LineStyle");
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_linestyle_new(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "New Line Style";
+  ot->idname = "SCENE_OT_freestyle_linestyle_new";
+  ot->description = "Create a new line style, reusable by multiple line sets";
+
+  /* api callbacks */
+  ot->exec = freestyle_linestyle_new_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Add "Color" Operator
+ * \{ */
+
+static int freestyle_color_modifier_add_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  int type = RNA_enum_get(op->ptr, "type");
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  if (BKE_linestyle_color_modifier_add(lineset->linestyle, NULL, type) == NULL) {
+    BKE_report(op->reports, RPT_ERROR, "Unknown line color modifier type");
+    return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_color_modifier_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Line Color Modifier";
+  ot->idname = "SCENE_OT_freestyle_color_modifier_add";
+  ot->description =
+      "Add a line color modifier to the line style associated with the active lineset";
+
+  /* api callbacks */
+  ot->invoke = WM_menu_invoke;
+  ot->exec = freestyle_color_modifier_add_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* properties */
+  ot->prop = RNA_def_enum(
+      ot->srna, "type", rna_enum_linestyle_color_modifier_type_items, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Add "Alpha" Operator
+ * \{ */
+
+static int freestyle_alpha_modifier_add_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  int type = RNA_enum_get(op->ptr, "type");
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  if (BKE_linestyle_alpha_modifier_add(lineset->linestyle, NULL, type) == NULL) {
+    BKE_report(op->reports, RPT_ERROR, "Unknown alpha transparency modifier type");
+    return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_alpha_modifier_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Alpha Transparency Modifier";
+  ot->idname = "SCENE_OT_freestyle_alpha_modifier_add";
+  ot->description =
+      "Add an alpha transparency modifier to the line style associated with the active lineset";
+
+  /* api callbacks */
+  ot->invoke = WM_menu_invoke;
+  ot->exec = freestyle_alpha_modifier_add_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* properties */
+  ot->prop = RNA_def_enum(
+      ot->srna, "type", rna_enum_linestyle_alpha_modifier_type_items, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Add "Thickness" Operator
+ * \{ */
+
+static int freestyle_thickness_modifier_add_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  int type = RNA_enum_get(op->ptr, "type");
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  if (BKE_linestyle_thickness_modifier_add(lineset->linestyle, NULL, type) == NULL) {
+    BKE_report(op->reports, RPT_ERROR, "Unknown line thickness modifier type");
+    return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_thickness_modifier_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Line Thickness Modifier";
+  ot->idname = "SCENE_OT_freestyle_thickness_modifier_add";
+  ot->description =
+      "Add a line thickness modifier to the line style associated with the active lineset";
+
+  /* api callbacks */
+  ot->invoke = WM_menu_invoke;
+  ot->exec = freestyle_thickness_modifier_add_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* properties */
+  ot->prop = RNA_def_enum(
+      ot->srna, "type", rna_enum_linestyle_thickness_modifier_type_items, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Add "Geometry" Operator
+ * \{ */
+
+static int freestyle_geometry_modifier_add_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  int type = RNA_enum_get(op->ptr, "type");
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  if (BKE_linestyle_geometry_modifier_add(lineset->linestyle, NULL, type) == NULL) {
+    BKE_report(op->reports, RPT_ERROR, "Unknown stroke geometry modifier type");
+    return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_geometry_modifier_add(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Add Stroke Geometry Modifier";
+  ot->idname = "SCENE_OT_freestyle_geometry_modifier_add";
+  ot->description =
+      "Add a stroke geometry modifier to the line style associated with the active lineset";
+
+  /* api callbacks */
+  ot->invoke = WM_menu_invoke;
+  ot->exec = freestyle_geometry_modifier_add_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* properties */
+  ot->prop = RNA_def_enum(
+      ot->srna, "type", rna_enum_linestyle_geometry_modifier_type_items, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Remove Operator
+ * \{ */
+
+static int freestyle_get_modifier_type(PointerRNA *ptr)
+{
+  if (RNA_struct_is_a(ptr->type, &RNA_LineStyleColorModifier)) {
+    return LS_MODIFIER_TYPE_COLOR;
+  }
+  if (RNA_struct_is_a(ptr->type, &RNA_LineStyleAlphaModifier)) {
+    return LS_MODIFIER_TYPE_ALPHA;
+  }
+  if (RNA_struct_is_a(ptr->type, &RNA_LineStyleThicknessModifier)) {
+    return LS_MODIFIER_TYPE_THICKNESS;
+  }
+  if (RNA_struct_is_a(ptr->type, &RNA_LineStyleGeometryModifier)) {
+    return LS_MODIFIER_TYPE_GEOMETRY;
+  }
+  return -1;
+}
+
+static int freestyle_modifier_remove_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "modifier", &RNA_LineStyleModifier);
+  LineStyleModifier *modifier = static_cast<LineStyleModifier *>(ptr.data);
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  switch (freestyle_get_modifier_type(&ptr)) {
+    case LS_MODIFIER_TYPE_COLOR:
+      BKE_linestyle_color_modifier_remove(lineset->linestyle, modifier);
+      break;
+    case LS_MODIFIER_TYPE_ALPHA:
+      BKE_linestyle_alpha_modifier_remove(lineset->linestyle, modifier);
+      break;
+    case LS_MODIFIER_TYPE_THICKNESS:
+      BKE_linestyle_thickness_modifier_remove(lineset->linestyle, modifier);
+      break;
+    case LS_MODIFIER_TYPE_GEOMETRY:
+      BKE_linestyle_geometry_modifier_remove(lineset->linestyle, modifier);
+      break;
+    default:
+      BKE_report(
+          op->reports, RPT_ERROR, "The object the data pointer refers to is not a valid modifier");
+      return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_modifier_remove(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Remove Modifier";
+  ot->idname = "SCENE_OT_freestyle_modifier_remove";
+  ot->description = "Remove the modifier from the list of modifiers";
+
+  /* api callbacks */
+  ot->exec = freestyle_modifier_remove_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Copy Operator
+ * \{ */
+
+static int freestyle_modifier_copy_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "modifier", &RNA_LineStyleModifier);
+  LineStyleModifier *modifier = static_cast<LineStyleModifier *>(ptr.data);
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  switch (freestyle_get_modifier_type(&ptr)) {
+    case LS_MODIFIER_TYPE_COLOR:
+      BKE_linestyle_color_modifier_copy(lineset->linestyle, modifier, 0);
+      break;
+    case LS_MODIFIER_TYPE_ALPHA:
+      BKE_linestyle_alpha_modifier_copy(lineset->linestyle, modifier, 0);
+      break;
+    case LS_MODIFIER_TYPE_THICKNESS:
+      BKE_linestyle_thickness_modifier_copy(lineset->linestyle, modifier, 0);
+      break;
+    case LS_MODIFIER_TYPE_GEOMETRY:
+      BKE_linestyle_geometry_modifier_copy(lineset->linestyle, modifier, 0);
+      break;
+    default:
+      BKE_report(
+          op->reports, RPT_ERROR, "The object the data pointer refers to is not a valid modifier");
+      return OPERATOR_CANCELLED;
+  }
+  DEG_id_tag_update(&lineset->linestyle->id, 0);
+  WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_modifier_copy(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Copy Modifier";
+  ot->idname = "SCENE_OT_freestyle_modifier_copy";
+  ot->description = "Duplicate the modifier within the list of modifiers";
+
+  /* api callbacks */
+  ot->exec = freestyle_modifier_copy_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Modifier Move Operator
+ * \{ */
+
+static int freestyle_modifier_move_exec(bContext *C, wmOperator *op)
+{
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineSet *lineset = BKE_freestyle_lineset_get_active(&view_layer->freestyle_config);
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "modifier", &RNA_LineStyleModifier);
+  LineStyleModifier *modifier = static_cast<LineStyleModifier *>(ptr.data);
+  int dir = RNA_enum_get(op->ptr, "direction");
+  bool changed = false;
+
+  if (!freestyle_linestyle_check_report(lineset, op->reports)) {
+    return OPERATOR_CANCELLED;
+  }
+
+  switch (freestyle_get_modifier_type(&ptr)) {
+    case LS_MODIFIER_TYPE_COLOR:
+      changed = BKE_linestyle_color_modifier_move(lineset->linestyle, modifier, dir);
+      break;
+    case LS_MODIFIER_TYPE_ALPHA:
+      changed = BKE_linestyle_alpha_modifier_move(lineset->linestyle, modifier, dir);
+      break;
+    case LS_MODIFIER_TYPE_THICKNESS:
+      changed = BKE_linestyle_thickness_modifier_move(lineset->linestyle, modifier, dir);
+      break;
+    case LS_MODIFIER_TYPE_GEOMETRY:
+      changed = BKE_linestyle_geometry_modifier_move(lineset->linestyle, modifier, dir);
+      break;
+    default:
+      BKE_report(
+          op->reports, RPT_ERROR, "The object the data pointer refers to is not a valid modifier");
+      return OPERATOR_CANCELLED;
+  }
+
+  if (changed) {
+    DEG_id_tag_update(&lineset->linestyle->id, 0);
+    WM_event_add_notifier(C, NC_LINESTYLE, lineset->linestyle);
+  }
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_modifier_move(wmOperatorType *ot)
+{
+  static const EnumPropertyItem direction_items[] = {
+      {-1, "UP", 0, "Up", ""},
+      {1, "DOWN", 0, "Down", ""},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Move Modifier";
+  ot->idname = "SCENE_OT_freestyle_modifier_move";
+  ot->description = "Move the modifier within the list of modifiers";
+
+  /* api callbacks */
+  ot->exec = freestyle_modifier_move_exec;
+  ot->poll = freestyle_active_lineset_poll;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  /* props */
+  RNA_def_enum(ot->srna,
+               "direction",
+               direction_items,
+               0,
+               "Direction",
+               "Direction to move the chosen modifier towards");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Free Style Stroke Material Create Operator
+ * \{ */
+
+static int freestyle_stroke_material_create_exec(bContext *C, wmOperator *op)
+{
+  Main *bmain = CTX_data_main(C);
+  ViewLayer *view_layer = CTX_data_view_layer(C);
+  FreestyleLineStyle *linestyle = BKE_linestyle_active_from_view_layer(view_layer);
+
+  if (!linestyle) {
+    BKE_report(op->reports, RPT_ERROR, "No active line style in the current scene");
+    return OPERATOR_CANCELLED;
+  }
+
+  FRS_create_stroke_material(bmain, linestyle);
+
+  return OPERATOR_FINISHED;
+}
+
+void SCENE_OT_freestyle_stroke_material_create(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Create Freestyle Stroke Material";
+  ot->idname = "SCENE_OT_freestyle_stroke_material_create";
+  ot->description = "Create Freestyle stroke material for testing";
+
+  /* api callbacks */
+  ot->exec = freestyle_stroke_material_create_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+#endif /* WITH_FREESTYLE */
+
+/* -------------------------------------------------------------------- */
+/** \name Texture Slot Move Operator
+ * \{ */
+
+static int texture_slot_move_exec(bContext *C, wmOperator *op)
+{
+  ID *id = CTX_data_pointer_get_type(C, "texture_slot", &RNA_TextureSlot).owner_id;
+
+  if (id) {
+    MTex **mtex_ar, *mtexswap;
+    short act;
+    int type = RNA_enum_get(op->ptr, "type");
+    struct AnimData *adt = BKE_animdata_from_id(id);
+
+    give_active_mtex(id, &mtex_ar, &act);
+
+    if (type == -1) { /* Up */
+      if (act > 0) {
+        mtexswap = mtex_ar[act];
+        mtex_ar[act] = mtex_ar[act - 1];
+        mtex_ar[act - 1] = mtexswap;
+
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, act - 1, -1, 0);
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, act, act - 1, 0);
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, -1, act, 0);
+
+        set_active_mtex(id, act - 1);
+      }
+    }
+    else { /* Down */
+      if (act < MAX_MTEX - 1) {
+        mtexswap = mtex_ar[act];
+        mtex_ar[act] = mtex_ar[act + 1];
+        mtex_ar[act + 1] = mtexswap;
+
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, act + 1, -1, 0);
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, act, act + 1, 0);
+        BKE_animdata_fix_paths_rename(id, adt, NULL, "texture_slots", NULL, NULL, -1, act, 0);
+
+        set_active_mtex(id, act + 1);
+      }
+    }
+
+    DEG_id_tag_update(id, 0);
+    WM_event_add_notifier(C, NC_TEXTURE, CTX_data_scene(C));
+  }
+
+  return OPERATOR_FINISHED;
+}
+
+void TEXTURE_OT_slot_move(wmOperatorType *ot)
+{
+  static const EnumPropertyItem slot_move[] = {
+      {-1, "UP", 0, "Up", ""},
+      {1, "DOWN", 0, "Down", ""},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* identifiers */
+  ot->name = "Move Texture Slot";
+  ot->idname = "TEXTURE_OT_slot_move";
+  ot->description = "Move texture slots up and down";
+
+  /* api callbacks */
+  ot->exec = texture_slot_move_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+
+  RNA_def_enum(ot->srna, "type", slot_move, 0, "Type", "");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Copy Operator
+ * \{ */
+
+/* material copy/paste */
+static int copy_material_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Material *ma = static_cast<Material *>(
+      CTX_data_pointer_get_type(C, "material", &RNA_Material).data);
+
+  if (ma == NULL) {
+    return OPERATOR_CANCELLED;
+  }
+
+  BKE_material_copybuf_copy(CTX_data_main(C), ma);
+
+  return OPERATOR_FINISHED;
+}
+
+void MATERIAL_OT_copy(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Copy Material";
+  ot->idname = "MATERIAL_OT_copy";
+  ot->description = "Copy the material settings and nodes";
+
+  /* api callbacks */
+  ot->exec = copy_material_exec;
+
+  /* flags */
+  /* no undo needed since no changes are made to the material */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Material Paste Operator
+ * \{ */
+
+static int paste_material_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  Material *ma = static_cast<Material *>(
+      CTX_data_pointer_get_type(C, "material", &RNA_Material).data);
+
+  if (ma == NULL) {
+    return OPERATOR_CANCELLED;
+  }
+
+  BKE_material_copybuf_paste(CTX_data_main(C), ma);
+
+  DEG_id_tag_update(&ma->id, ID_RECALC_COPY_ON_WRITE);
+  WM_event_add_notifier(C, NC_MATERIAL | ND_SHADING_LINKS, ma);
+
+  return OPERATOR_FINISHED;
+}
+
+void MATERIAL_OT_paste(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Paste Material";
+  ot->idname = "MATERIAL_OT_paste";
+  ot->description = "Paste the material settings and nodes";
+
+  /* api callbacks */
+  ot->exec = paste_material_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name #MTex Copy/Paste Utilities
+ * \{ */
+
+static short mtexcopied = 0; /* must be reset on file load */
+static MTex mtexcopybuf;
+
+void ED_render_clear_mtex_copybuf(void)
+{ /* use for file reload */
+  mtexcopied = 0;
+}
+
+static void copy_mtex_copybuf(ID *id)
+{
+  MTex **mtex = NULL;
+
+  switch (GS(id->name)) {
+    case ID_PA:
+      mtex = &(((ParticleSettings *)id)->mtex[(int)((ParticleSettings *)id)->texact]);
+      break;
+    case ID_LS:
+      mtex = &(((FreestyleLineStyle *)id)->mtex[(int)((FreestyleLineStyle *)id)->texact]);
+      break;
+    default:
+      break;
+  }
+
+  if (mtex && *mtex) {
+    memcpy(&mtexcopybuf, *mtex, sizeof(MTex));
+    mtexcopied = 1;
+  }
+  else {
+    mtexcopied = 0;
+  }
+}
+
+static void paste_mtex_copybuf(ID *id)
+{
+  MTex **mtex = NULL;
+
+  if (mtexcopied == 0 || mtexcopybuf.tex == NULL) {
+    return;
+  }
+
+  switch (GS(id->name)) {
+    case ID_PA:
+      mtex = &(((ParticleSettings *)id)->mtex[(int)((ParticleSettings *)id)->texact]);
+      break;
+    case ID_LS:
+      mtex = &(((FreestyleLineStyle *)id)->mtex[(int)((FreestyleLineStyle *)id)->texact]);
+      break;
+    default:
+      BLI_assert_msg(0, "invalid id type");
+      return;
+  }
+
+  if (mtex) {
+    if (*mtex == NULL) {
+      *mtex = MEM_new<MTex>("mtex copy");
+    }
+    else if ((*mtex)->tex) {
+      id_us_min(&(*mtex)->tex->id);
+    }
+
+    memcpy(*mtex, &mtexcopybuf, sizeof(MTex));
+
+    id_us_plus((ID *)mtexcopybuf.tex);
+  }
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Texture Slot Copy Operator
+ * \{ */
+
+static int copy_mtex_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  ID *id = CTX_data_pointer_get_type(C, "texture_slot", &RNA_TextureSlot).owner_id;
+
+  if (id == NULL) {
+    /* copying empty slot */
+    ED_render_clear_mtex_copybuf();
+    return OPERATOR_CANCELLED;
+  }
+
+  copy_mtex_copybuf(id);
+
+  return OPERATOR_FINISHED;
+}
+
+static bool copy_mtex_poll(bContext *C)
+{
+  ID *id = CTX_data_pointer_get_type(C, "texture_slot", &RNA_TextureSlot).owner_id;
+
+  return (id != NULL);
+}
+
+void TEXTURE_OT_slot_copy(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Copy Texture Slot Settings";
+  ot->idname = "TEXTURE_OT_slot_copy";
+  ot->description = "Copy the material texture settings and nodes";
+
+  /* api callbacks */
+  ot->exec = copy_mtex_exec;
+  ot->poll = copy_mtex_poll;
+
+  /* flags */
+  /* no undo needed since no changes are made to the mtex */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_INTERNAL;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Texture Slot Paste Operator
+ * \{ */
+
+static int paste_mtex_exec(bContext *C, wmOperator *UNUSED(op))
+{
+  ID *id = CTX_data_pointer_get_type(C, "texture_slot", &RNA_TextureSlot).owner_id;
+
+  if (id == NULL) {
+    Material *ma = static_cast<Material *>(
+        CTX_data_pointer_get_type(C, "material", &RNA_Material).data);
+    Light *la = static_cast<Light *>(CTX_data_pointer_get_type(C, "light", &RNA_Light).data);
+    World *wo = static_cast<World *>(CTX_data_pointer_get_type(C, "world", &RNA_World).data);
+    ParticleSystem *psys = static_cast<ParticleSystem *>(
+        CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem).data);
+    FreestyleLineStyle *linestyle = static_cast<FreestyleLineStyle *>(
+        CTX_data_pointer_get_type(C, "line_style", &RNA_FreestyleLineStyle).data);
+
+    if (ma) {
+      id = &ma->id;
+    }
+    else if (la) {
+      id = &la->id;
+    }
+    else if (wo) {
+      id = &wo->id;
+    }
+    else if (psys) {
+      id = &psys->part->id;
+    }
+    else if (linestyle) {
+      id = &linestyle->id;
+    }
+
+    if (id == NULL) {
+      return OPERATOR_CANCELLED;
+    }
+  }
+
+  paste_mtex_copybuf(id);
+
+  WM_event_add_notifier(C, NC_TEXTURE | ND_SHADING_LINKS, NULL);
+
+  return OPERATOR_FINISHED;
+}
+
+void TEXTURE_OT_slot_paste(wmOperatorType *ot)
+{
+  /* identifiers */
+  ot->name = "Paste Texture Slot Settings";
+  ot->idname = "TEXTURE_OT_slot_paste";
+  ot->description = "Copy the texture settings and nodes";
+
+  /* api callbacks */
+  ot->exec = paste_mtex_exec;
+
+  /* flags */
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL;
+}
+
+/** \} */