Cleanup: spelling in comments

intern/cycles/blender/blender_session.h

@@ -110,8 +110,7 @@ class BlenderSession {
   BL::RenderSettings b_render;
   BL::Depsgraph b_depsgraph;
   /* NOTE: Blender's scene might become invalid after call
-   * free_blender_memory_if_possible().
-   */
+   * #free_blender_memory_if_possible(). */
   BL::Scene b_scene;
   BL::SpaceView3D b_v3d;
   BL::RegionView3D b_rv3d;
@@ -147,7 +146,7 @@ class BlenderSession {
  protected:
   void stamp_view_layer_metadata(Scene *scene, const string &view_layer_name);
 
-  /* Check whether session error happenned.
+  /* Check whether session error happened.
    * If so, it is reported to the render engine and true is returned.
    * Otherwise false is returned. */
   bool check_and_report_session_error();

intern/cycles/kernel/device/hip/compat.h

@@ -79,7 +79,7 @@ typedef unsigned long long uint64_t;
 #define ccl_gpu_global_id_x() (ccl_gpu_block_idx_x * ccl_gpu_block_dim_x + ccl_gpu_thread_idx_x)
 #define ccl_gpu_global_size_x() (ccl_gpu_grid_dim_x * ccl_gpu_block_dim_x)
 
-/* GPU warp synchronizaton */
+/* GPU warp synchronization */
 
 #define ccl_gpu_syncthreads() __syncthreads()
 #define ccl_gpu_ballot(predicate) __ballot(predicate)

source/blender/blenkernel/BKE_asset_catalog.hh

@@ -302,7 +302,7 @@ class AssetCatalog {
    * When this catalog's path is equal to the given path, return true as well.
    *
    * Note that non-normalized paths (so for example starting or ending with a slash) are not
-   * supported, and result in undefined behaviour.
+   * supported, and result in undefined behavior.
    */
   bool is_contained_in(const CatalogPath &other_path) const;
 

source/blender/blenkernel/BKE_volume.h

@@ -18,7 +18,7 @@
 
 /** \file
  * \ingroup bke
- * \brief Volume datablock.
+ * \brief Volume data-block.
  */
 #ifdef __cplusplus
 extern "C" {
@@ -37,7 +37,7 @@ struct VolumeGridVector;
 
 void BKE_volumes_init(void);
 
-/* Datablock Management */
+/* Data-block Management */
 
 void BKE_volume_init_grids(struct Volume *volume);
 void *BKE_volume_add(struct Main *bmain, const char *name);
@@ -122,13 +122,13 @@ void BKE_volume_grid_transform_matrix(const struct VolumeGrid *grid, float mat[4
 
 /* Volume Editing
  *
- * These are intended for modifiers to use on evaluated datablocks.
+ * These are intended for modifiers to use on evaluated data-blocks.
  *
- * new_for_eval creates a volume datablock with no grids or file path, but
+ * new_for_eval creates a volume data-block with no grids or file path, but
  * preserves other settings such as viewport display options.
  *
- * copy_for_eval creates a volume datablock preserving everything except the
- * file path. Grids are shared with the source datablock, not copied. */
+ * copy_for_eval creates a volume data-block preserving everything except the
+ * file path. Grids are shared with the source data-block, not copied. */
 
 struct Volume *BKE_volume_new_for_eval(const struct Volume *volume_src);
 struct Volume *BKE_volume_copy_for_eval(struct Volume *volume_src, bool reference);

source/blender/blenkernel/intern/asset_catalog_test.cc

@@ -175,7 +175,7 @@ TEST_F(AssetCatalogTest, load_single_file)
   AssetCatalogService service(asset_library_root_);
   service.load_from_disk(asset_library_root_ + "/" + "blender_assets.cats.txt");
 
-  // Test getting a non-existant catalog ID.
+  // Test getting a non-existent catalog ID.
   EXPECT_EQ(nullptr, service.find_catalog(BLI_uuid_generate_random()));
 
   // Test getting an invalid catalog (without path definition).
@@ -677,7 +677,7 @@ TEST_F(AssetCatalogTest, delete_catalog_leaf)
       {"character/Ružena", 1},
       {"character/Ružena/poselib", 2},
       {"character/Ružena/poselib/face", 3},
-      // {"character/Ružena/poselib/hand", 3}, // this is the deleted one
+      // {"character/Ružena/poselib/hand", 3}, // This is the deleted one.
       {"path", 0},
       {"path/without", 1},
       {"path/without/simplename", 2},
@@ -754,7 +754,7 @@ TEST_F(AssetCatalogTest, merge_catalog_files)
   TestableAssetCatalogService service(asset_library_root_);
   service.load_from_disk(cdf_dir);
 
-  // Copy a modified file, to mimick a situation where someone changed the CDF after we loaded it.
+  // Copy a modified file, to mimic a situation where someone changed the CDF after we loaded it.
   ASSERT_EQ(0, BLI_copy(modified_cdf_file.c_str(), temp_cdf_file.c_str()));
 
   // Overwrite the modified file. This should merge the on-disk file with our catalogs.

source/blender/blenlib/intern/path_util.c

@@ -1962,7 +1962,7 @@ bool BLI_path_contains(const char *container_path, const char *containee_path)
   }
 
   /* Add a trailing slash to prevent same-prefix directories from matching.
-   * e.g. "/some/path" doesn't contain "/some/pathlib". */
+   * e.g. "/some/path" doesn't contain "/some/path_lib". */
   BLI_path_slash_ensure(container_native);
 
   return BLI_str_startswith(containee_native, container_native);

source/blender/compositor/intern/COM_MemoryBuffer.h

@@ -695,8 +695,9 @@ class MemoryBuffer {
     return y >= m_rect.ymin && y < m_rect.ymax;
   }
 
-  /* Fast floor functions. The caller should check result is within buffer bounds. It ceils in near
-   * cases and when given coordinate is negative and less than buffer rect `min - 1`. */
+  /* Fast `floor(..)` functions. The caller should check result is within buffer bounds.
+   * It `ceil(..)` in near cases and when given coordinate
+   * is negative and less than buffer rect `min - 1`. */
   int floor_x(float x) const
   {
     return (int)(x + to_positive_x_stride_) - to_positive_x_stride_;

source/blender/compositor/operations/COM_BlurBaseOperation.cc

@@ -228,7 +228,7 @@ void BlurBaseOperation::determine_canvas(const rcti &preferred_area, rcti &r_are
     }
     case eExecutionModel::FullFrame: {
       /* Setting a modifier ensures all non main inputs have extended bounds as preferred
-       * canvas, avoiding unnecessary canvas convertions that would hide constant
+       * canvas, avoiding unnecessary canvas conversions that would hide constant
        * operations. */
       set_determined_canvas_modifier([=](rcti &canvas) {
         /* Rounding to even prevents jiggling in backdrop while switching size values. */

source/blender/editors/space_node/drawnode.cc

@@ -1563,7 +1563,7 @@ static void node_composit_buts_antialiasing(uiLayout *layout, bContext *UNUSED(C
   uiItemR(col, ptr, "corner_rounding", 0, nullptr, ICON_NONE);
 }
 
-/* qdn: glare node */
+/* glare node */
 static void node_composit_buts_glare(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
 {
   uiItemR(layout, ptr, "glare_type", DEFAULT_FLAGS, "", ICON_NONE);

source/blender/makesdna/DNA_node_types.h

@@ -855,7 +855,7 @@ typedef struct NodeVertexCol {
   char name[64];
 } NodeVertexCol;
 
-/* qdn: Defocus blur node */
+/** Defocus blur node. */
 typedef struct NodeDefocus {
   char bktype, _pad0, preview, gamco;
   short samples, no_zbuf;
@@ -871,7 +871,7 @@ typedef struct NodeScriptDict {
   void *node;
 } NodeScriptDict;
 
-/* qdn: glare node */
+/** glare node. */
 typedef struct NodeGlare {
   char quality, type, iter;
   /* XXX angle is only kept for backward/forward compatibility,
@@ -882,14 +882,14 @@ typedef struct NodeGlare {
   char _pad1[4];
 } NodeGlare;
 
-/* qdn: tonemap node */
+/** Tonemap node. */
 typedef struct NodeTonemap {
   float key, offset, gamma;
   float f, m, a, c;
   int type;
 } NodeTonemap;
 
-/* qdn: lens distortion node */
+/** Lens distortion node. */
 typedef struct NodeLensDist {
   short jit, proj, fit;
   char _pad[2];

source/blender/nodes/composite/node_composite_tree.cc

@@ -315,7 +315,7 @@ void ntreeCompositTagRender(Scene *scene)
         if (node->id == (ID *)scene || node->type == CMP_NODE_COMPOSITE) {
           nodeUpdate(sce_iter->nodetree, node);
         }
-        else if (node->type == CMP_NODE_TEXTURE) /* uses scene sizex/sizey */ {
+        else if (node->type == CMP_NODE_TEXTURE) /* uses scene size_x/size_y */ {
           nodeUpdate(sce_iter->nodetree, node);
         }
       }

source/blender/nodes/composite/nodes/node_composite_brightness.cc

@@ -23,7 +23,7 @@
 
 #include "node_composite_util.hh"
 
-/* **************** Brigh and contrsast  ******************** */
+/* **************** Bright and Contrast  ******************** */
 
 static bNodeSocketTemplate cmp_node_brightcontrast_in[] = {
     {SOCK_RGBA, N_("Image"), 1.0f, 1.0f, 1.0f, 1.0f},

source/blender/nodes/composite/nodes/node_composite_curves.cc

@@ -25,7 +25,7 @@
 
 /* **************** CURVE Time  ******************** */
 
-/* custom1 = sfra, custom2 = efra */
+/* custom1 = start_frame, custom2 = end_frame */
 static bNodeSocketTemplate cmp_node_time_out[] = {
     {SOCK_FLOAT, N_("Fac")},
     {-1, ""},

source/blender/nodes/composite/nodes/node_composite_defocus.cc

@@ -25,7 +25,7 @@
 
 #include <climits>
 
-/* ************ qdn: Defocus node ****************** */
+/* ************ Defocus Node ****************** */
 static bNodeSocketTemplate cmp_node_defocus_in[] = {
     {SOCK_RGBA, N_("Image"), 1.0f, 1.0f, 1.0f, 1.0f},
     {SOCK_FLOAT, N_("Z"), 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, PROP_NONE},
@@ -38,7 +38,7 @@ static bNodeSocketTemplate cmp_node_defocus_out[] = {
 
 static void node_composit_init_defocus(bNodeTree *UNUSED(ntree), bNode *node)
 {
-  /* qdn: defocus node */
+  /* defocus node */
   NodeDefocus *nbd = (NodeDefocus *)MEM_callocN(sizeof(NodeDefocus), "node defocus data");
   nbd->bktype = 0;
   nbd->rotation = 0.0f;

source/blender/nodes/composite/nodes/node_composite_image.cc

@@ -140,8 +140,7 @@ static void cmp_node_image_create_outputs(bNodeTree *ntree,
      *
      * So we manually construct image user to be sure first
      * image from sequence (that one which is set as filename
-     * for image datablock) is used for sockets detection
-     */
+     * for image data-block) is used for sockets detection. */
     load_iuser.ok = 1;
     load_iuser.framenr = offset;
 

source/blender/nodes/composite/nodes/node_composite_vecBlur.cc

@@ -39,7 +39,7 @@ static void node_composit_init_vecblur(bNodeTree *UNUSED(ntree), bNode *node)
   nbd->fac = 1.0f;
 }
 
-/* custom1: iterations, custom2: maxspeed (0 = nolimit) */
+/* custom1: iterations, custom2: max_speed (0 = no_limit). */
 void register_node_type_cmp_vecblur(void)
 {
   static bNodeType ntype;

source/blender/nodes/geometry/nodes/legacy/node_geo_attribute_transfer.cc

@@ -404,7 +404,7 @@ static void transfer_attribute_nearest(const GeometrySet &src_geometry,
                                                                                         data_type);
     for (const int i : IndexRange(tot_samples)) {
       if (pointcloud_distances_sq[i] < mesh_distances_sq[i]) {
-        /* Pointcloud point is closer. */
+        /* Point-cloud point is closer. */
         const int index = pointcloud_indices[i];
         pointcloud_src_attribute.varray->get(index, buffer);
         dst_attribute->set_by_relocate(i, buffer);

source/blender/nodes/intern/node_common.c

@@ -198,7 +198,7 @@ void node_group_update(struct bNodeTree *ntree, struct bNode *node)
     nodeRemoveAllSockets(ntree, node);
   }
   else if ((ID_IS_LINKED(node->id) && (node->id->tag & LIB_TAG_MISSING))) {
-    /* Missing datablock, leave sockets unchanged so that when it comes back
+    /* Missing data-block, leave sockets unchanged so that when it comes back
      * the links remain valid. */
   }
   else {

source/blender/nodes/shader/nodes/node_shader_brightness.c

@@ -19,7 +19,7 @@
 
 #include "node_shader_util.h"
 
-/* **************** Brigh and contrsast  ******************** */
+/* **************** Bright and contrast  ******************** */
 
 static bNodeSocketTemplate sh_node_brightcontrast_in[] = {
     {SOCK_RGBA, N_("Color"), 1.0f, 1.0f, 1.0f, 1.0f},

source/blender/render/intern/texture_image.c

@@ -1958,13 +1958,11 @@ int imagewraposa(Tex *tex,
   }
 
   if (texres->nor && (tex->imaflag & TEX_NORMALMAP)) {
-    /* qdn: normal from color
-     * The invert of the red channel is to make
-     * the normal map compliant with the outside world.
-     * It needs to be done because in Blender
-     * the normal used in the renderer points inward. It is generated
-     * this way in calc_vertexnormals(). Should this ever change
-     * this negate must be removed. */
+    /* Normal from color:
+     * The invert of the red channel is to make the normal map compliant with the outside world.
+     * It needs to be done because in Blender the normal used in the renderer points inward.
+     * It is generated this way in #calc_vertexnormals().
+     * Should this ever change this negate must be removed. */
     texres->nor[0] = -2.0f * (texres->tr - 0.5f);
     texres->nor[1] = 2.0f * (texres->tg - 0.5f);
     texres->nor[2] = 2.0f * (texres->tb - 0.5f);