Fix T37812, anchored sculpting on a flat plane created artifacts.
This must be an ancient bug, almost as old as anchored brushes themselves. Code did not do sphere node intersection against original bounding boxes if an anchored brush required it. In practice this was not easy to see because vertices were displaced inside brush radius most of the time. However in the provided report file, displacement was far away from the brush sphere, making the issue apparent. Also added original check in proxy combination code (might cause issues with dyntopo but quick test did not show any) and did some style int -> bool style changes.
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blender-bot
2023-02-14 11:28:47 +01:00
Referenced by issue #37812, Blank rectangles in sculpt brush stroke
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@ -1023,7 +1023,7 @@ typedef struct {
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Sculpt *sd;
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SculptSession *ss;
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float radius_squared;
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int original;
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bool original;
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} SculptSearchSphereData;
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/* Test AABB against sphere */
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@ -1085,12 +1085,13 @@ static void calc_area_normal(Sculpt *sd, Object *ob, float an[3], PBVHNode **nod
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SculptSession *ss = ob->sculpt;
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const Brush *brush = BKE_paint_brush(&sd->paint);
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int n, original;
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int n;
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bool original;
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/* Grab brush requires to test on original data (see r33888 and
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* bug #25371) */
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original = (BKE_paint_brush(&sd->paint)->sculpt_tool == SCULPT_TOOL_GRAB ?
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TRUE : ss->cache->original);
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true : ss->cache->original);
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/* In general the original coords are not available with dynamic
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* topology
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@ -1101,7 +1102,7 @@ static void calc_area_normal(Sculpt *sd, Object *ob, float an[3], PBVHNode **nod
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* so we don't actually need to use modified coords.
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*/
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if (ss->bm || brush->sculpt_tool == SCULPT_TOOL_MASK)
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original = FALSE;
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original = false;
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(void)sd; /* unused w/o openmp */
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@ -3115,7 +3116,7 @@ static void sculpt_topology_update(Sculpt *sd, Object *ob, Brush *brush)
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SCULPT_TOOL_GRAB,
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SCULPT_TOOL_ROTATE,
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SCULPT_TOOL_THUMB,
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SCULPT_TOOL_LAYER);
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SCULPT_TOOL_LAYER) ? true : ss->cache->original;
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BKE_pbvh_search_gather(ss->pbvh, sculpt_search_sphere_cb, &data, &nodes, &totnode);
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@ -3182,7 +3183,7 @@ static void do_brush_action(Sculpt *sd, Object *ob, Brush *brush)
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SCULPT_TOOL_GRAB,
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SCULPT_TOOL_ROTATE,
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SCULPT_TOOL_THUMB,
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SCULPT_TOOL_LAYER);
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SCULPT_TOOL_LAYER) ? true : ss->cache->original;
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BKE_pbvh_search_gather(ss->pbvh, sculpt_search_sphere_cb, &data, &nodes, &totnode);
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/* Only act if some verts are inside the brush area */
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@ -3318,8 +3319,8 @@ static void sculpt_combine_proxies(Sculpt *sd, Object *ob)
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if (!ELEM(brush->sculpt_tool, SCULPT_TOOL_SMOOTH, SCULPT_TOOL_LAYER) ||
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sculpt_brush_supports_gravity(brush, sd)) {
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/* these brushes start from original coordinates */
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const int use_orco = (ELEM3(brush->sculpt_tool, SCULPT_TOOL_GRAB,
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SCULPT_TOOL_ROTATE, SCULPT_TOOL_THUMB));
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const bool use_orco = ELEM3(brush->sculpt_tool, SCULPT_TOOL_GRAB,
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SCULPT_TOOL_ROTATE, SCULPT_TOOL_THUMB) ? true : ss->cache->original;
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#pragma omp parallel for schedule(guided) if (sd->flags & SCULPT_USE_OPENMP)
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for (n = 0; n < totnode; n++) {
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