Cleanup: spelling & repeated words in comments

Address warnings from check_spelling.py

CMakeLists.txt

@@ -1420,7 +1420,7 @@ set(PLATFORM_CFLAGS)
 set(C_WARNINGS)
 set(CXX_WARNINGS)
 
-# NOTE: These flags are intended for situations where where it's impractical to
+# NOTE: These flags are intended for situations where it's impractical to
 # suppress warnings by modifying the code or for code which is maintained externally.
 # For GCC this typically means adding `-Wno-*` arguments to negate warnings
 # that are useful in the general case.

doc/python_api/examples/bpy.types.Depsgraph.1.py

@@ -26,7 +26,7 @@ class OBJECT_OT_evaluated_example(bpy.types.Operator):
         # current scene and view layer.
         #
         # NOTE: This call ensure the dependency graph is fully evaluated. This might be expensive
-        # if changes were made made to the scene, but is needed to ensure no dangling or incorrect
+        # if changes were made to the scene, but is needed to ensure no dangling or incorrect
         # pointers are exposed.
         depsgraph = context.evaluated_depsgraph_get()
         # Actually request evaluated object.

intern/cycles/device/hip/util.cpp

@@ -48,7 +48,7 @@ bool hipSupportsDriver()
 {
 #  ifdef _WIN32
 #    ifndef WITH_HIP_SDK_5
-  /* This check is only neccesary if we're using HIP SDK 6 or newer. */
+  /* This check is only necessary if we're using HIP SDK 6 or newer. */
   int hip_driver_version = 0;
   hipError_t result = hipDriverGetVersion(&hip_driver_version);
   if (result != hipSuccess) {

source/blender/blendthumb/src/thumbnail_provider.mm

@@ -50,7 +50,7 @@
      xattr -rl bin/Blender.app/Contents/Plugins/blender-thumbnailer.appex
  * - Is it registered with lsregister and there isn't a conflict with another plugin taking
  *   precedence? lsregister -dump | grep blender-thumbnailer.appex
- * - For RBSLaunchRequest error: is the executable executable? chmod u+x
+ * - For RBSLaunchRequest error: is the executable flag set? chmod u+x
   bin/Blender.app/Contents/PlugIns/blender-thumbnailer.appex/Contents/MacOS/blender-thumbnailer
  * - Is it codesigned and sandboxed?
  *   codesign --display --verbose --entitlements - --xml \

source/blender/blenkernel/BKE_grease_pencil.hh

@@ -425,7 +425,7 @@ class LayerRuntime {
   LayerTransformData trans_data_;
 
   /* Whether this layer's visibility is animated (via the ".hide" RNA property). This is only set
-   * when creating a copy of of the owning GreasePencil ID for the depsgraph evaluation. */
+   * when creating a copy of the owning GreasePencil ID for the depsgraph evaluation. */
   bool is_visisbility_animated_;
 
  public:

source/blender/blenlib/BLI_index_mask.hh

@@ -588,7 +588,7 @@ int64_t consolidate_index_mask_segments(MutableSpan<IndexMaskSegment> segments,
                                         IndexMaskMemory &memory);
 
 /**
- * Adds index mask segments to the the vector for the given range. Ranges shorter than
+ * Adds index mask segments to the vector for the given range. Ranges shorter than
  * #max_segment_size fit into a single segment. Larger ranges are split into multiple segments.
  */
 template<int64_t N>

source/blender/bmesh/operators/bmo_dissolve.cc

@@ -329,7 +329,7 @@ void bmo_dissolve_edges_exec(BMesh *bm, BMOperator *op)
     }
   }
 
-  /* Cleanup geometry. Remove any verts that are garbage collectible and that that have became
+  /* Cleanup geometry. Remove any verts that are garbage collectible and that have became
    * isolated verts (no edges) because of edge dissolves. */
   BM_ITER_MESH_MUTABLE (v, v_next, &iter, bm, BM_VERTS_OF_MESH) {
     if ((v->e == nullptr) && BMO_vert_flag_test(bm, v, VERT_ISGC)) {

source/blender/editors/interface/regions/interface_region_tooltip.cc

@@ -1368,7 +1368,7 @@ static ARegion *ui_tooltip_create_with_data(bContext *C,
 
   /* Clamp to window bounds. */
   {
-    /* Ensure at least 5 px above screen bounds.
+    /* Ensure at least 5 pixels above screen bounds.
      * #UI_UNIT_Y is just a guess to be above the menu item. */
     if (init_rect_overlap != nullptr) {
       const int pad = max_ff(1.0f, U.pixelsize) * 5;

source/blender/editors/object/object_edit.cc

@@ -1769,7 +1769,7 @@ void OBJECT_OT_shade_smooth_by_angle(wmOperatorType *ot)
  * \{ */
 
 /**
- * Does a shallow check for whether the node group could be the the Smooth by Angle node group.
+ * Does a shallow check for whether the node group could be the Smooth by Angle node group.
  * This should become unnecessary once we asset embedding (#132167).
  */
 static bool is_valid_smooth_by_angle_group(const bNodeTree &ntree)

source/blender/editors/sculpt_paint/sculpt_transform.cc

@@ -578,7 +578,7 @@ void update_modal_transform(bContext *C, Object &ob)
 
 void cancel_modal_transform(bContext *C, Object &ob)
 {
-  /* Cancelling "Elastic" transforms (due to its TransformDisplacementMode::Incremental nature),
+  /* Canceling "Elastic" transforms (due to its #TransformDisplacementMode::Incremental nature),
    * requires restoring positions from undo. For "All Vertices" there is no benefit in using the
    * transform system to update to original positions either. */
   Depsgraph *depsgraph = CTX_data_depsgraph_pointer(C);

source/blender/gpu/glsl_preprocess/glsl_preprocess.hh

@@ -565,7 +565,7 @@ class Preprocessor {
     /**
      * Example replacement:
      *
-     * `
+     * \code{.cc}
      * // Source
      * shared float bar[10];                                    // Source declaration.
      * shared float foo;                                        // Source declaration.
@@ -598,7 +598,7 @@ class Preprocessor {
      *
      * }                                                        // Added at runtime by backend.
      * // End of Backend Output
-     * `
+     * \endcode
      */
     std::stringstream args, assign, declare, pass;
 

source/blender/gpu/opengl/gl_backend.cc

@@ -494,7 +494,7 @@ static void detect_workarounds()
     GLContext::multi_bind_image_support = false;
   }
 
-  /* #134509 Intel ARC GPU have a driver bug that break the display of batched nodelinks.
+  /* #134509 Intel ARC GPU have a driver bug that break the display of batched node-links.
    * Disabling batching fixes the issue. */
   if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_ANY, GPU_DRIVER_OFFICIAL)) {
     if (strstr(renderer, "Arc")) {