1 files changed, 11 insertions, 6 deletions

diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c b/source/blender/editors/sculpt_paint/paint_image_proj.c
index 89263bec7b1..33166988f7d 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -3125,7 +3125,8 @@ static void project_paint_face_init(const ProjPaintState *ps,
                   uv, v1coSS, v2coSS, v3coSS, uv1co, uv2co, uv3co, pixelScreenCo, w);
             }
 
-            /* a pity we need to get the worldspace pixel location here */
+            /* A pity we need to get the world-space pixel location here
+             * because it is a relatively expensive operation. */
             if (do_clip || do_3d_mapping) {
               interp_v3_v3v3v3(wco,
                                ps->mvert_eval[lt_vtri[0]].co,
@@ -3208,7 +3209,10 @@ static void project_paint_face_init(const ProjPaintState *ps,
     else {
       /* we have a seam - deal with it! */
 
-      /* inset face coords.  NOTE!!! ScreenSace for ortho, Worldspace in perspective view */
+      /* Inset face coords.
+       * - screen-space in orthographic view.
+       * - world-space in perspective view.
+       */
       float insetCos[3][3];
 
       /* Vertex screen-space coords. */
@@ -3373,8 +3377,8 @@ static void project_paint_face_init(const ProjPaintState *ps,
                     if ((ps->do_occlude == false) ||
                         !project_bucket_point_occluded(
                             ps, bucketFaceNodes, tri_index, pixel_on_edge)) {
-                      /* a pity we need to get the worldspace
-                       * pixel location here */
+                      /* A pity we need to get the world-space pixel location here
+                       * because it is a relatively expensive operation. */
                       if (do_clip || do_3d_mapping) {
                         interp_v3_v3v3v3(wco, vCo[0], vCo[1], vCo[2], w);
 
@@ -4130,8 +4134,9 @@ static bool project_paint_clone_face_skip(ProjPaintState *ps,
 
     if (ps->do_material_slots) {
       if (lc->slot_clone != lc->slot_last_clone) {
-        if (!slot->uvname || !(lc->mloopuv_clone_base = CustomData_get_layer_named(
-                                   &ps->me_eval->ldata, CD_MLOOPUV, lc->slot_clone->uvname))) {
+        if (!lc->slot_clone->uvname ||
+            !(lc->mloopuv_clone_base = CustomData_get_layer_named(
+                  &ps->me_eval->ldata, CD_MLOOPUV, lc->slot_clone->uvname))) {
           lc->mloopuv_clone_base = CustomData_get_layer(&ps->me_eval->ldata, CD_MLOOPUV);
         }
         lc->slot_last_clone = lc->slot_clone;