Cleanup: spelling in comments & some corrections

intern/cycles/device/oneapi/device_impl.cpp

@@ -122,7 +122,8 @@ bool OneapiDevice::check_peer_access(Device * /*peer_device*/)
 
 bool OneapiDevice::can_use_hardware_raytracing_for_features(uint requested_features) const
 {
-  /* MNEE and Raytrace kernels work correctly with Hardware Raytracing starting with Embree 4.1. */
+  /* MNEE and Ray-trace kernels work correctly with Hardware Ray-tracing starting with Embree 4.1.
+   */
 #  if defined(RTC_VERSION) && RTC_VERSION < 40100
   return !(requested_features & (KERNEL_FEATURE_MNEE | KERNEL_FEATURE_NODE_RAYTRACE));
 #  else

intern/cycles/kernel/device/gpu/kernel.h

@@ -432,7 +432,7 @@ ccl_gpu_kernel_threads(GPU_PARALLEL_SORTED_INDEX_DEFAULT_BLOCK_SIZE)
 }
 ccl_gpu_kernel_postfix
 
-/* oneAPI verion needs the local_mem accessor in the arguments. */
+/* oneAPI Verizon needs the local_mem accessor in the arguments. */
 #ifdef __KERNEL_ONEAPI__
 ccl_gpu_kernel_threads(GPU_PARALLEL_SORT_BLOCK_SIZE)
     ccl_gpu_kernel_signature(integrator_sort_bucket_pass,
@@ -489,7 +489,7 @@ ccl_gpu_kernel_threads(GPU_PARALLEL_SORT_BLOCK_SIZE)
 }
 ccl_gpu_kernel_postfix
 
-/* oneAPI verion needs the local_mem accessor in the arguments. */
+/* oneAPI version needs the local_mem accessor in the arguments. */
 #ifdef __KERNEL_ONEAPI__
 ccl_gpu_kernel_threads(GPU_PARALLEL_SORT_BLOCK_SIZE)
     ccl_gpu_kernel_signature(integrator_sort_write_pass,

intern/cycles/kernel/device/oneapi/kernel.cpp

@@ -109,7 +109,7 @@ size_t oneapi_kernel_preferred_local_size(SyclQueue *queue,
   assert(queue);
   (void)kernel_global_size;
   const static size_t preferred_work_group_size_intersect_shading = 32;
-  /* Shader evalutation kernels seems to use some amount of shared memory, so better
+  /* Shader evaluation kernels seems to use some amount of shared memory, so better
    * to avoid usage of maximum work group sizes for them. */
   const static size_t preferred_work_group_size_shader_evaluation = 256;
   const static size_t preferred_work_group_size_default = 1024;
@@ -196,7 +196,7 @@ bool oneapi_kernel_is_required_for_features(const std::string &kernel_name,
 
 bool oneapi_kernel_is_compatible_with_hardware_raytracing(const std::string &kernel_name)
 {
-  /* MNEE and Raytrace kernels work correctly with Hardware Raytracing starting with Embree 4.1.
+  /* MNEE and Ray-trace kernels work correctly with Hardware Ray-tracing starting with Embree 4.1.
    */
 #  if defined(RTC_VERSION) && RTC_VERSION < 40100
   return (kernel_name.find(device_kernel_as_string(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE)) ==

source/blender/blenkernel/BKE_mesh.hh

@@ -86,7 +86,7 @@ void normals_calc_poly_vert(Span<float3> vert_positions,
  * \{ */
 
 /**
- * Combined with the automatically calculated face corner normal, this gives a dimentional
+ * Combined with the automatically calculated face corner normal, this gives a dimensional
  * coordinate space used to convert normals between the "custom normal" #short2 representation and
  * a regular #float3 format.
  */

source/blender/blenkernel/BKE_mesh_remap.h

@@ -19,7 +19,7 @@ struct CustomData_MeshMasks;
 struct MemArena;
 struct Mesh;
 
-/* Generic ways to map some geometry elements from a source mesh to a dest one. */
+/* Generic ways to map some geometry elements from a source mesh to a destination one. */
 
 typedef struct MeshPairRemapItem {
   int sources_num;
@@ -33,7 +33,7 @@ typedef struct MeshPairRemapItem {
 /* All mapping computing func return this. */
 typedef struct MeshPairRemap {
   int items_num;
-  MeshPairRemapItem *items; /* array, one item per dest element. */
+  MeshPairRemapItem *items; /* Array, one item per destination element. */
 
   struct MemArena *mem; /* memory arena, internal use only. */
 } MeshPairRemap;
@@ -89,7 +89,7 @@ enum {
   /* ***** Target's edges ***** */
   MREMAP_MODE_EDGE = 1 << 25,
 
-  /* Source edge which both vertices are nearest of dest ones. */
+  /* Source edge which both vertices are nearest of destination ones. */
   MREMAP_MODE_EDGE_VERT_NEAREST = MREMAP_MODE_EDGE | MREMAP_USE_VERT | MREMAP_USE_NEAREST,
 
   /* Nearest source edge (using mid-point). */
@@ -98,7 +98,7 @@ enum {
   /* Nearest edge of nearest poly (using mid-point). */
   MREMAP_MODE_EDGE_POLY_NEAREST = MREMAP_MODE_EDGE | MREMAP_USE_POLY | MREMAP_USE_NEAREST,
 
-  /* Cast a set of rays from along dest edge,
+  /* Cast a set of rays from along destination edge,
    * interpolating its vertices' normals, and use hit source edges. */
   MREMAP_MODE_EDGE_EDGEINTERP_VNORPROJ = MREMAP_MODE_EDGE | MREMAP_USE_VERT | MREMAP_USE_NORPROJ |
                                          MREMAP_USE_INTERP,
@@ -131,10 +131,10 @@ enum {
 
   /* Nearest source poly. */
   MREMAP_MODE_POLY_NEAREST = MREMAP_MODE_POLY | MREMAP_USE_POLY | MREMAP_USE_NEAREST,
-  /* Source poly from best normal-matching dest poly. */
+  /* Source poly from best normal-matching destination poly. */
   MREMAP_MODE_POLY_NOR = MREMAP_MODE_POLY | MREMAP_USE_POLY | MREMAP_USE_NORMAL,
 
-  /* Project dest poly onto source mesh using its normal,
+  /* Project destination poly onto source mesh using its normal,
    * and use interpolation of all intersecting source polys. */
   MREMAP_MODE_POLY_POLYINTERP_PNORPROJ = MREMAP_MODE_POLY | MREMAP_USE_POLY | MREMAP_USE_NORPROJ |
                                          MREMAP_USE_INTERP,

source/blender/blenkernel/intern/CCGSubSurf_legacy.c

@@ -334,7 +334,7 @@ static void ccgSubSurf__calcVertNormals(CCGSubSurf *ss,
         0, numEffectedF, &data, ccgSubSurf__calcVertNormals_faces_accumulate_cb, &settings);
   }
 
-  /* XXX can I reduce the number of normalisations here? */
+  /* XXX can I reduce the number of normalization calls here? */
   for (ptrIdx = 0; ptrIdx < numEffectedV; ptrIdx++) {
     CCGVert *v = (CCGVert *)effectedV[ptrIdx];
     float *no = VERT_getNo(v, lvl);

source/blender/blenkernel/intern/anim_sys.c

@@ -641,8 +641,8 @@ static int animsys_quaternion_evaluate_fcurves(PathResolvedRNA quat_rna,
   }
 
   if (fcurve_offset < 4) {
-    /* This quaternion was incompletely keyed, so the result is a mixture of the unit quaterion and
-     * values from FCurves. This means that it's almost certainly no longer of unit length. */
+    /* This quaternion was incompletely keyed, so the result is a mixture of the unit quaternion
+     * and values from FCurves. This means that it's almost certainly no longer of unit length. */
     normalize_qt(r_quaternion);
   }
 

source/blender/blenkernel/intern/data_transfer.cc

@@ -611,7 +611,7 @@ static bool data_transfer_layersmapping_cdlayers_multisrc_to_dst(ListBase *r_map
   bool *data_dst_to_delete = nullptr;
 
   if (!use_layers_src) {
-    /* No source at all, we can only delete all dest if requested... */
+    /* No source at all, we can only delete all destination if requested. */
     if (use_delete) {
       idx_dst = tot_dst;
       while (idx_dst--) {
@@ -1384,7 +1384,7 @@ bool BKE_object_data_transfer_ex(struct Depsgraph *depsgraph,
   }
 
   /* Check all possible data types.
-   * Note item mappings and dest mix weights are cached. */
+   * Note item mappings and destination mix weights are cached. */
   for (int i = 0; i < DT_TYPE_MAX; i++) {
     const int dtdata_type = 1 << i;
     int cddata_type;

source/blender/blenkernel/intern/layer.cc

@@ -1006,7 +1006,7 @@ void BKE_main_view_layers_synced_ensure(const Main *bmain)
     BKE_scene_view_layers_synced_ensure(scene);
   }
 
-  /* NOTE: This is not (yet?) covered by the dirty tag and deffered re-sync system. */
+  /* NOTE: This is not (yet?) covered by the dirty tag and deferred re-sync system. */
   BKE_layer_collection_local_sync_all(bmain);
 }
 

source/blender/blenkernel/intern/lib_override.cc

@@ -198,8 +198,9 @@ void BKE_lib_override_library_copy(ID *dst_id, const ID *src_id, const bool do_f
     BKE_lib_override_library_init(dst_id, nullptr);
   }
 
-  /* If source is already overriding data, we copy it but reuse its reference for dest ID.
-   * Otherwise, source is only an override template, it then becomes reference of dest ID. */
+  /* If source is already overriding data, we copy it but reuse its reference for destination ID.
+   * Otherwise, source is only an override template, it then becomes reference of destination ID.
+   */
   dst_id->override_library->reference = src_id->override_library->reference ?
                                             src_id->override_library->reference :
                                             const_cast<ID *>(src_id);
@@ -1776,7 +1777,7 @@ static void lib_override_library_remap(Main *bmain,
  *
  * In case linked data keep being modified, these conditions may fail and the mapping may start to
  * return 'wrong' results. However, this is considered as an acceptable limitation here, since this
- * is mainly a 'best effort' to recover from situations that should not be hapenning in the first
+ * is mainly a 'best effort' to recover from situations that should not be happening in the first
  * place.
  */
 
@@ -2061,7 +2062,7 @@ static bool lib_override_library_resync(Main *bmain,
   }
 
   /* Get a mapping of all missing linked IDs that were liboverrides, to search for 'old
-   * liboverrides' for newly created ones that do not alredy have one, in next step. */
+   * liboverrides' for newly created ones that do not already have one, in next step. */
   LibOverrideMissingIDsData missing_ids_data = lib_override_library_resync_build_missing_ids_data(
       bmain);
 
@@ -2638,7 +2639,8 @@ static bool lib_override_library_main_resync_id_skip_check(ID *id,
   return false;
 }
 
-/* Clear 'unreachable' tag of existing liboverrides if they are using another reachable liboverride
+/**
+ * Clear 'unreachable' tag of existing liboverrides if they are using another reachable liboverride
  * (typical case: Mesh object which only relationship to the rest of the liboverride hierarchy is
  * though its 'parent' pointer (i.e. rest of the hierarchy has no actual relationship to this mesh
  * object). Sadge.
@@ -2646,7 +2648,8 @@ static bool lib_override_library_main_resync_id_skip_check(ID *id,
  * Logic and rational of this function are very similar to these of
  * #lib_override_hierarchy_dependencies_recursive_tag_from, but withing specific resync context.
  *
- * \returns True if it finds a non-isolated 'parent' ID, false otherwise. */
+ * \returns True if it finds a non-isolated 'parent' ID, false otherwise.
+ */
 static bool lib_override_resync_tagging_finalize_recursive_check_from(
     Main *bmain, ID *id, const int library_indirect_level)
 {

source/blender/blenkernel/intern/object_deform.c

@@ -257,7 +257,7 @@ static void object_defgroup_remove_common(Object *ob, bDeformGroup *dg, const in
     BKE_object_defgroup_active_index_set(ob, active_index - 1);
   }
 
-  /* remove all dverts */
+  /* Remove all deform-verts. */
   if (BLI_listbase_is_empty(defbase)) {
     if (ob->type == OB_MESH) {
       Mesh *me = ob->data;
@@ -404,8 +404,8 @@ void BKE_object_defgroup_remove_all_ex(struct Object *ob, bool only_unlocked)
       dg = next_dg;
     }
   }
-  else { /* defbase is empty... */
-    /* remove all dverts */
+  else { /* `defbase` is empty. */
+    /* Remove all deform-verts. */
     if (ob->type == OB_MESH) {
       Mesh *me = ob->data;
       CustomData_free_layer_active(&me->vdata, CD_MDEFORMVERT, me->totvert);

source/blender/blenlib/BLI_listbase.h

@@ -285,7 +285,8 @@ BLI_INLINE void BLI_listbase_clear(struct ListBase *lb)
   lb->first = lb->last = (void *)0;
 }
 
-/** Validate the integrity of a given ListBase, returns `true` if evrything is OK, false otherwise.
+/** Validate the integrity of a given ListBase, returns `true` if everything is OK, false
+ * otherwise.
  */
 bool BLI_listbase_validate(struct ListBase *lb);
 

source/blender/blenlib/BLI_path_util.h

@@ -621,7 +621,7 @@ bool BLI_path_frame_check_chars(const char *path) ATTR_NONNULL(1) ATTR_WARN_UNUS
 /** \} */
 
 /* -------------------------------------------------------------------- */
-/** \name Blender Spesific File Relative Paths
+/** \name Blender Specific File Relative Paths
  * \{ */
 
 /**

source/blender/blenlib/intern/fileops.c

@@ -403,7 +403,7 @@ int BLI_rename_overwrite(const char *from, const char *to)
    * Support for checking the files aren't the same could be added, however path comparison
    * alone is *not* a guarantee the files are different (given the possibility of accessing
    * the same file through different paths via symbolic-links), we could instead support a
-   * verizon of Python's * `os.path.samefile(..)` which compares the I-node & device.
+   * version of Python's `os.path.samefile(..)` which compares the I-node & device.
    * In this particular case we would not want to follow symbolic-links as well.
    * Since this functionality isn't required at the moment, leave this as-is.
    * Noting it as a potential improvement. */

source/blender/blenlib/intern/math_rotation.c

@@ -352,7 +352,7 @@ void mat3_normalized_to_quat_fast(float q[4], const float mat[3][3])
 
   BLI_assert(!(q[0] < 0.0f));
 
-  /* Sometimes normalisation is necessary due to round-off errors in the above
+  /* Sometimes normalization is necessary due to round-off errors in the above
    * calculations. The comparison here uses tighter tolerances than
    * BLI_ASSERT_UNIT_QUAT(), so it's likely that even after a few more
    * transformations the quaternion will still be considered unit-ish. */

source/blender/blenlib/intern/string_cursor_utf8.c

@@ -344,7 +344,7 @@ void BLI_str_cursor_step_bounds_utf8(
     BLI_str_cursor_step_utf8(str, str_maxlen, r_start, STRCUR_DIR_PREV, STRCUR_JUMP_DELIM, false);
   }
   if ((prev >= next) && (next != STRCUR_DELIM_NONE)) {
-    /* Expand forward if we are between similar content, after whitespace, or at beginning. */
+    /* Expand forward if we are between similar content. */
     BLI_str_cursor_step_utf8(str, str_maxlen, r_end, STRCUR_DIR_NEXT, STRCUR_JUMP_DELIM, false);
   }
 }
@@ -361,11 +361,11 @@ void BLI_str_cursor_step_bounds_utf32(
   *r_end = pos;
 
   if ((prev <= next) && (prev != STRCUR_DELIM_NONE)) {
-    /* Expand backward if we are between similar content, before whitespace, or at end. */
+    /* Expand backward if we are between similar content. */
     BLI_str_cursor_step_utf32(str, str_maxlen, r_start, STRCUR_DIR_PREV, STRCUR_JUMP_DELIM, false);
   }
   if ((prev >= next) && (next != STRCUR_DELIM_NONE)) {
-    /* Expand forward if we are between similar content, after whitespace, or at beginning. */
+    /* Expand forward if we are between similar content. */
     BLI_str_cursor_step_utf32(str, str_maxlen, r_end, STRCUR_DIR_NEXT, STRCUR_JUMP_DELIM, false);
   }
 }

source/blender/blenloader/intern/blend_validate.cc

@@ -199,7 +199,7 @@ bool BLO_main_validate_shapekeys(Main *bmain, ReportList *reports)
                 shapekey->from);
     /* NOTE: also need to remap UI data ID pointers here, since `bmain` is not the current
      * `G_MAIN`, default UI-handling remapping callback (defined by call to
-     * `BKE_library_callback_remap_editor_id_reference_set`) won't work on exoected data here. */
+     * `BKE_library_callback_remap_editor_id_reference_set`) won't work on expected data here. */
     BKE_id_delete_ex(bmain, shapekey, ID_REMAP_FORCE_UI_POINTERS);
   }
 

source/blender/blenloader/intern/readfile.h

@@ -98,7 +98,7 @@ typedef struct FileData {
   /**
    * Store mapping from old ID pointers (the values they have in the .blend file) to new ones,
    * typically from value in `bhead->old` to address in memory where the ID was read.
-   * Used during liblinking process (see #lib_link_all).
+   * Used during library-linking process (see #lib_link_all).
    */
   struct OldNewMap *libmap;
 
@@ -115,7 +115,7 @@ typedef struct FileData {
   /** Used for undo. */
   ListBase *old_mainlist;
   /**
-   * IDMap using uuids as keys of all the old IDs in the old bmain. Used during undo to find a
+   * IDMap using UUID's as keys of all the old IDs in the old bmain. Used during undo to find a
    * matching old data when reading a new ID. */
   struct IDNameLib_Map *old_idmap_uuid;
 

source/blender/bmesh/intern/bmesh_operators.c

@@ -234,7 +234,7 @@ void _bmo_slot_copy(BMOpSlot slot_args_src[BMO_OP_MAX_SLOTS],
     slot_dst->data.buf = NULL;
     slot_dst->len = slot_src->len;
     if (slot_dst->len) {
-      /* check dest has all flags enabled that the source has */
+      /* Check destination has all flags enabled that the source has. */
       const eBMOpSlotSubType_Elem src_elem_flag = (slot_src->slot_subtype.elem & BM_ALL_NOLOOP);
       const eBMOpSlotSubType_Elem dst_elem_flag = (slot_dst->slot_subtype.elem & BM_ALL_NOLOOP);
 

source/blender/draw/engines/eevee_next/eevee_pipeline.cc

@@ -293,7 +293,7 @@ void DeferredLayer::begin_sync()
 
       /* Textures. */
       prepass_ps_.bind_texture(RBUFS_UTILITY_TEX_SLOT, inst_.pipelines.utility_tx);
-      /* Uniform Buf. */
+      /* Uniform Buffer. */
       prepass_ps_.bind_ubo(CAMERA_BUF_SLOT, inst_.camera.ubo_get());
 
       inst_.velocity.bind_resources(&prepass_ps_);
@@ -338,11 +338,11 @@ void DeferredLayer::begin_sync()
       gbuffer_ps_.bind_image(RBUFS_AOV_VALUE_SLOT, &inst_.render_buffers.aov_value_tx);
       /* Cryptomatte. */
       gbuffer_ps_.bind_image(RBUFS_CRYPTOMATTE_SLOT, &inst_.render_buffers.cryptomatte_tx);
-      /* Storage Buf. */
+      /* Storage Buffer. */
       gbuffer_ps_.bind_ssbo(RBUFS_AOV_BUF_SLOT, &inst_.film.aovs_info);
       /* Textures. */
       gbuffer_ps_.bind_texture(RBUFS_UTILITY_TEX_SLOT, inst_.pipelines.utility_tx);
-      /* Uniform Buf. */
+      /* Uniform Buffer. */
       gbuffer_ps_.bind_ubo(CAMERA_BUF_SLOT, inst_.camera.ubo_get());
 
       inst_.sampling.bind_resources(&gbuffer_ps_);

source/blender/draw/engines/eevee_next/eevee_sampling.hh

@@ -89,7 +89,7 @@ class Sampling {
 
   template<typename T> void bind_resources(draw::detail::PassBase<T> *pass)
   {
-    /* Storage Buf. */
+    /* Storage Buffer. */
     pass->bind_ssbo(SAMPLING_BUF_SLOT, &data_);
   }
 

source/blender/draw/engines/eevee_next/eevee_velocity.hh

@@ -120,13 +120,13 @@ class VelocityModule {
 
   template<typename T> void bind_resources(draw::detail::Pass<T> *pass)
   {
-    /* Storage Buf. */
+    /* Storage Buffer. */
     pass->bind_ssbo(VELOCITY_OBJ_PREV_BUF_SLOT, &(*object_steps[STEP_PREVIOUS]));
     pass->bind_ssbo(VELOCITY_OBJ_NEXT_BUF_SLOT, &(*object_steps[next_step_]));
     pass->bind_ssbo(VELOCITY_GEO_PREV_BUF_SLOT, &(*geometry_steps[STEP_PREVIOUS]));
     pass->bind_ssbo(VELOCITY_GEO_NEXT_BUF_SLOT, &(*geometry_steps[next_step_]));
     pass->bind_ssbo(VELOCITY_INDIRECTION_BUF_SLOT, &indirection_buf);
-    /* Uniform Buf. */
+    /* Uniform Buffer. */
     pass->bind_ubo(VELOCITY_CAMERA_PREV_BUF, &(*camera_steps[STEP_PREVIOUS]));
     pass->bind_ubo(VELOCITY_CAMERA_CURR_BUF, &(*camera_steps[STEP_CURRENT]));
     pass->bind_ubo(VELOCITY_CAMERA_NEXT_BUF, &(*camera_steps[next_step_]));

source/blender/editors/armature/armature_add.c

@@ -1142,7 +1142,7 @@ static int armature_symmetrize_exec(bContext *C, wmOperator *op)
      * A symmetrizable selection contains selected ebones of the input direction
      * and unique selected bones with an unique flippable name.
      *
-     * Storing temp ptrs to mirrored unselected ebones. */
+     * Storing temp pointers to mirrored unselected ebones. */
     for (ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
       if (!(EBONE_VISIBLE(arm, ebone_iter) && (ebone_iter->flag & BONE_SELECTED))) {
         /* Skipping invisible selected bones. */

source/blender/editors/interface/interface_region_menu_popup.cc

@@ -191,11 +191,11 @@ static void ui_popup_menu_create_block(bContext *C,
   if (!pup->but) {
     pup->block->flag |= UI_BLOCK_NO_FLIP;
   }
-  /* A title is only provided when a Menu has a label, this is not alwas the case, see e.g.
+  /* A title is only provided when a Menu has a label, this is not always the case, see e.g.
    * `VIEW3D_MT_edit_mesh_context_menu` -- this specifies its own label inside the draw function
    * depending on vertex/edge/face mode. We still want to flag the uiBlock (but only insert into
-   * the puphash if we have a title provided). Choosing an entry in a menu will still handle
-   * puphash later (see `button_activate_exit`) though multiple menus without a label might fight
+   * the `puphash` if we have a title provided). Choosing an entry in a menu will still handle
+   * `puphash` later (see `button_activate_exit`) though multiple menus without a label might fight
    * for the same storage of the menu memory. Using idname instead (or in combination with the
    * label) for the hash could be looked at to solve this. */
   pup->block->flag |= UI_BLOCK_POPUP_MEMORY;

source/blender/editors/lattice/editlattice_undo.c

@@ -71,8 +71,8 @@ static void undolatt_to_editlatt(UndoLattice *ult, EditLatt *editlatt)
     memcpy(editlatt->latt->def, ult->def, sizeof(BPoint) * len_src);
   }
 
-  /* Even for the same amount of points we dont just copy memory for MDeformVert, relations to
-   * MDeformWeight might have changed. */
+  /* Even for the same amount of points we don't just copy memory for MDeformVert,
+   * relations to #MDeformWeight might have changed. */
   if (editlatt->latt->dvert && ult->dvert) {
     BKE_defvert_array_free(editlatt->latt->dvert, len_dst);
     editlatt->latt->dvert = MEM_mallocN(sizeof(MDeformVert) * len_src, "Lattice MDeformVert");

source/blender/editors/sculpt_paint/paint_utils.cc

@@ -235,8 +235,8 @@ static void imapaint_tri_weights(float matrix[4][4],
   h[1] = (co[1] - view[1]) * 2.0f / view[3] - 1.0f;
   h[2] = 1.0f;
 
-  /* solve for (w1,w2,w3)/perspdiv in:
-   * h * perspdiv = Project * Model * (w1 * v1 + w2 * v2 + w3 * v3) */
+  /* Solve for `(w1,w2,w3)/perspdiv` in:
+   * `h * perspdiv = Project * Model * (w1 * v1 + w2 * v2 + w3 * v3)`. */
 
   wmat[0][0] = pv1[0];
   wmat[1][0] = pv2[0];
@@ -253,7 +253,7 @@ static void imapaint_tri_weights(float matrix[4][4],
 
   copy_v3_v3(w, h);
 
-  /* w is still divided by perspdiv, make it sum to one */
+  /* w is still divided by `perspdiv`, make it sum to one */
   divw = w[0] + w[1] + w[2];
   if (divw != 0.0f) {
     mul_v3_fl(w, 1.0f / divw);

source/blender/editors/sculpt_paint/paint_vertex_weight_utils.cc

@@ -58,7 +58,7 @@ bool ED_wpaint_ensure_data(bContext *C,
     return false;
   }
 
-  /* if nothing was added yet, we make dverts and a vertex deform group */
+  /* If nothing was added yet, we make deform-verts and a vertex deform group. */
   if (BKE_mesh_deform_verts(me) == nullptr) {
     BKE_object_defgroup_data_create(&me->id);
     WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
@@ -136,8 +136,7 @@ int ED_wpaint_mirror_vgroup_ensure(Object *ob, const int vgroup_active)
       }
     }
 
-    /* curdef should never be nullptr unless this is
-     * a  light and BKE_object_defgroup_add_name fails */
+    /* `mirrdef` shouldn't be -1 unless the object is a light & #BKE_object_defgroup_new fails. */
     return mirrdef;
   }
 

source/blender/editors/space_sequencer/sequencer_gizmo_retime_type.cc

@@ -445,9 +445,9 @@ static void gizmo_retime_handle_draw(const bContext *C, wmGizmo *gz)
   RetimeHandleMoveGizmo *gizmo = (RetimeHandleMoveGizmo *)gz;
   const View2D *v2d = UI_view2d_fromcontext(C);
 
-  /* TODO: This is hardcoded behavior, same as preselect gizmos in 3D view.
+  /* TODO: This is hard-coded behavior, same as pre-select gizmos in 3D view.
    * Better solution would be to check operator keymap and display this information in status bar
-   * and tooltip. */
+   * and tool-tip. */
   wmEvent *event = CTX_wm_window(C)->eventstate;
   gizmo->create_transition_operation = (event->modifier & KM_SHIFT) != 0;
 

source/blender/editors/space_sequencer/sequencer_retiming.cc

@@ -216,7 +216,7 @@ static int sequencer_retiming_handle_move_modal(bContext *C, wmOperator *op, con
       const bool handle_is_transition = SEQ_retiming_handle_is_transition_type(handle);
       const bool prev_handle_is_transition = SEQ_retiming_handle_is_transition_type(handle - 1);
 
-      /* When working with transiton, change handles when moving past pivot point. */
+      /* When working with transition, change handles when moving past pivot point. */
       if (handle_is_transition || prev_handle_is_transition) {
         SeqRetimingHandle *transition_start, *transition_end;
         if (handle_is_transition) {

source/blender/editors/space_view3d/view3d_utils.c

@@ -891,7 +891,7 @@ static void view3d_boxview_sync_axis(RegionView3D *rv3d_dst, RegionView3D *rv3d_
   mul_qt_v3(viewinv, view_dst_x);
   mul_qt_v3(viewinv, view_dst_y);
 
-  /* check source and dest have a matching axis */
+  /* Check source and destination have a matching axis. */
   for (i = 0; i < 3; i++) {
     if (((fabsf(view_src_x[i]) > axis_eps) || (fabsf(view_src_y[i]) > axis_eps)) &&
         ((fabsf(view_dst_x[i]) > axis_eps) || (fabsf(view_dst_y[i]) > axis_eps)))

source/blender/geometry/intern/uv_pack.cc

@@ -102,7 +102,7 @@ static float get_aspect_scaled_extent(const rctf &extent, const UVPackIsland_Par
 }
 
 /**
- * \return true iff `b` is a preferred layout over `a`, given the packing parameters supplied.
+ * \return true if `b` is a preferred layout over `a`, given the packing parameters supplied.
  */
 static bool is_larger(const rctf &a, const rctf &b, const UVPackIsland_Params &params)
 {

source/blender/gpu/vulkan/vk_context.cc

@@ -142,7 +142,7 @@ VKStateManager &VKContext::state_manager_get()
 /** \} */
 
 /* -------------------------------------------------------------------- */
-/** \name Framebuffer
+/** \name Frame-buffer
  * \{ */
 
 void VKContext::activate_framebuffer(VKFrameBuffer &framebuffer)

source/blender/gpu/vulkan/vk_framebuffer.hh

@@ -33,9 +33,9 @@ class VKFrameBuffer : public FrameBuffer {
 
   /**
    * Should we flip the viewport to match Blenders coordinate system. We flip the viewport for
-   * offscreen framebuffers.
+   * off-screen frame-buffers.
    *
-   * When two framebuffers are blitted we also check if the coordinate system should be flipped
+   * When two frame-buffers are blitted we also check if the coordinate system should be flipped
    * during blitting.
    */
   bool flip_viewport_ = false;

source/blender/gpu/vulkan/vk_pipeline.cc

@@ -169,7 +169,7 @@ void VKPipeline::finalize(VKContext &context,
   viewport_state.scissorCount = 1;
   pipeline_create_info.pViewportState = &viewport_state;
 
-  /* Multisample state. */
+  /* Multi-sample state. */
   VkPipelineMultisampleStateCreateInfo multisample_state = {};
   multisample_state.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
   multisample_state.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;

source/blender/gpu/vulkan/vk_pipeline_state.cc

@@ -20,7 +20,7 @@ VKPipelineStateManager::VKPipelineStateManager()
   depth_stencil_state = {};
   depth_stencil_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
 
-  /* TODO should be extracted from current framebuffer and should not be done here and now. */
+  /* TODO should be extracted from current frame-buffer and should not be done here and now. */
   /* When the attachments differ the state should be forced. */
   VkPipelineColorBlendAttachmentState color_blend_attachment = {};
   color_blend_attachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |
@@ -364,4 +364,4 @@ void VKPipelineStateManager::set_shadow_bias(const bool enable)
   }
 }
 
-}  // namespace blender::gpu
+}  // namespace blender::gpu

source/blender/io/common/intern/path_util.cc

@@ -65,7 +65,7 @@ void path_reference_copy(const Set<std::pair<std::string, std::string>> &copy_se
       continue;
     }
     if (0 == BLI_path_cmp_normalized(src, dst)) {
-      continue; /* Source and dest are the same. */
+      continue; /* Source and destination are the same. */
     }
     if (!BLI_file_ensure_parent_dir_exists(dst)) {
       fprintf(stderr, "Can't make directory for '%s', not copying\n", dst);

source/blender/io/usd/intern/usd_capi_export.cc

@@ -103,8 +103,10 @@ static bool prim_path_valid(const char *path)
   return true;
 }
 
-/* Perform validation of export parameter settings. Returns
- * true if the paramters are valid; returns false otherwise. */
+/**
+ * Perform validation of export parameter settings.
+ * \return true if the parameters are valid; returns false otherwise.
+ */
 static bool export_params_valid(const USDExportParams &params)
 {
   bool valid = true;

source/blender/io/usd/intern/usd_writer_curves.cc

@@ -296,7 +296,7 @@ static void populate_curve_props_for_nurbs(const bke::CurvesGeometry &geometry,
     Array<float> temp_knots(knots_num);
     bke::curves::nurbs::calculate_knots(tot_points, mode, order, is_cyclic, temp_knots);
 
-    /* Knots should be the concatentation of all batched curves.
+    /* Knots should be the concatenation of all batched curves.
      * https://graphics.pixar.com/usd/dev/api/class_usd_geom_nurbs_curves.html#details */
     for (int i_knot = 0; i_knot < knots_num; i_knot++) {
       knots.push_back(double(temp_knots[i_knot]));

source/blender/makesdna/DNA_action_types.h

@@ -567,9 +567,10 @@ typedef enum eItasc_Flags {
   ITASC_INITIAL_REITERATION = (1 << 1),
   ITASC_REITERATION = (1 << 2),
   ITASC_SIMULATION = (1 << 3),
-
-  /* Set this flag to always translate root bones (i.e. bones without a parent) to (0, 0, 0).
-   * This was the pre-3.6 behaviour, and this flag was introduced for backward compatibility. */
+  /**
+   * Set this flag to always translate root bones (i.e. bones without a parent) to (0, 0, 0).
+   * This was the pre-3.6 behavior, and this flag was introduced for backward compatibility.
+   */
   ITASC_TRANSLATE_ROOT_BONES = (1 << 4),
 } eItasc_Flags;
 

source/blender/modifiers/intern/MOD_weightvg_util.cc

@@ -212,7 +212,7 @@ void weightvg_do_mask(const ModifierEvalContext *ctx,
     /* Get vgroup idx from its name. */
 
     /* Proceed only if vgroup is valid, else use constant factor. */
-    /* Get actual dverts (ie vertex group data). */
+    /* Get actual deform-verts (ie vertex group data). */
     const MDeformVert *dvert = static_cast<const MDeformVert *>(
         CustomData_get_layer(&mesh->vdata, CD_MDEFORMVERT));
     /* Proceed only if vgroup is valid, else assume factor = O. */

source/blender/python/mathutils/mathutils_Vector.c

@@ -2640,7 +2640,7 @@ static PyObject *Vector_swizzle_get(VectorObject *self, void *closure)
  * Set the items of this vector using a swizzle.
  * - If value is a vector or list this operates like an array copy, except that
  *   the destination is effectively re-ordered as defined by the swizzle. At
- *   most min(len(source), len(dest)) values will be copied.
+ *   most `min(len(source), len(destination))` values will be copied.
  * - If the value is scalar, it is copied to all axes listed in the swizzle.
  * - If an axis appears more than once in the swizzle, the final occurrence is
  *   the one that determines its value.

tools/check_source/check_spelling_c_config.py

@@ -302,6 +302,7 @@ dict_custom = {
     "subdirectories",
     "subdirectory",
     "suboptimally",
+    "subrange",
     "subtractive",
     "superset",
     "symmetrize",