diff options
Diffstat (limited to 'source/blender/editors/gpencil/gpencil_paint.c')
| -rw-r--r-- | source/blender/editors/gpencil/gpencil_paint.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/source/blender/editors/gpencil/gpencil_paint.c b/source/blender/editors/gpencil/gpencil_paint.c index 30d85b09974..993065a3a70 100644 --- a/source/blender/editors/gpencil/gpencil_paint.c +++ b/source/blender/editors/gpencil/gpencil_paint.c @@ -1332,7 +1332,7 @@ static float view3d_point_depth(const RegionView3D *rv3d, const float co[3]) /* only erase stroke points that are visible */ static bool gpencil_stroke_eraser_is_occluded( - tGPsdata *p, bGPDlayer *gpl, const bGPDspoint *pt, const int x, const int y) + tGPsdata *p, bGPDlayer *gpl, bGPDspoint *pt, const int x, const int y) { Object *obact = (Object *)p->ownerPtr.data; Brush *brush = p->brush; @@ -1364,7 +1364,11 @@ static bool gpencil_stroke_eraser_is_occluded( mul_v3_m4v3(fpt, diff_mat, &pt->x); const float depth_pt = view3d_point_depth(rv3d, fpt); + /* Checked occlusion flag. */ + pt->flag |= GP_SPOINT_TEMP_TAG; if (depth_pt > depth_mval) { + /* Is occluded. */ + pt->flag |= GP_SPOINT_TEMP_TAG2; return true; } } @@ -1540,6 +1544,10 @@ static void gpencil_stroke_eraser_dostroke(tGPsdata *p, for (i = 0; i < gps->totpoints; i++) { bGPDspoint *pt = &gps->points[i]; pt->flag &= ~GP_SPOINT_TAG; + /* Occlusion already checked. */ + pt->flag &= ~GP_SPOINT_TEMP_TAG; + /* Point is occluded. */ + pt->flag &= ~GP_SPOINT_TEMP_TAG2; } /* First Pass: Loop over the points in the stroke @@ -1585,9 +1593,23 @@ static void gpencil_stroke_eraser_dostroke(tGPsdata *p, * - this assumes that linewidth is irrelevant */ if (gpencil_stroke_inside_circle(mval, radius, pc0[0], pc0[1], pc2[0], pc2[1])) { - if ((gpencil_stroke_eraser_is_occluded(p, gpl, pt0, pc0[0], pc0[1]) == false) || - (gpencil_stroke_eraser_is_occluded(p, gpl, pt1, pc1[0], pc1[1]) == false) || - (gpencil_stroke_eraser_is_occluded(p, gpl, pt2, pc2[0], pc2[1]) == false)) { + + bool is_occluded_pt0, is_occluded_pt1, is_occluded_pt2 = true; + is_occluded_pt0 = (pt0 && ((pt0->flag & GP_SPOINT_TEMP_TAG) != 0)) ? + ((pt0->flag & GP_SPOINT_TEMP_TAG2) != 0) : + gpencil_stroke_eraser_is_occluded(p, gpl, pt0, pc0[0], pc0[1]); + if (is_occluded_pt0) { + is_occluded_pt1 = ((pt1->flag & GP_SPOINT_TEMP_TAG) != 0) ? + ((pt1->flag & GP_SPOINT_TEMP_TAG2) != 0) : + gpencil_stroke_eraser_is_occluded(p, gpl, pt1, pc1[0], pc1[1]); + if (is_occluded_pt1) { + is_occluded_pt2 = ((pt2->flag & GP_SPOINT_TEMP_TAG) != 0) ? + ((pt2->flag & GP_SPOINT_TEMP_TAG2) != 0) : + gpencil_stroke_eraser_is_occluded(p, gpl, pt2, pc2[0], pc2[1]); + } + } + + if (!is_occluded_pt0 || !is_occluded_pt1 || !is_occluded_pt2) { /* Point is affected: */ /* Adjust thickness * - Influence of eraser falls off with distance from the middle of the eraser |