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Merge pull request #32618 from nekomatata/sprite-to-polygon

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Sprite to polygon conversion improvements
This commit is contained in:
Rémi Verschelde 2019-10-08 16:13:38 +02:00 committed by GitHub
commit e2f1b30565
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 91 additions and 46 deletions
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77
editor/plugins/sprite_editor_plugin.cpp
View file

@ -178,6 +178,7 @@ void SpriteEditor::_update_mesh_data() {
err_dialog->popup_centered_minsize();
return;
}
Ref<Image> image = texture->get_data();
ERR_FAIL_COND(image.is_null());
Rect2 rect;
@ -190,7 +191,12 @@ void SpriteEditor::_update_mesh_data() {
bm.instance();
bm->create_from_image_alpha(image);
int grow = island_merging->get_value();
int shrink = shrink_pixels->get_value();
if (shrink > 0) {
bm->shrink_mask(shrink, rect);
}
int grow = grow_pixels->get_value();
if (grow > 0) {
bm->grow_mask(grow, rect);
}
@ -338,6 +344,13 @@ void SpriteEditor::_convert_to_mesh_2d_node() {
}
void SpriteEditor::_convert_to_polygon_2d_node() {
if (computed_outline_lines.empty()) {
err_dialog->set_text(TTR("Invalid geometry, can't create polygon."));
err_dialog->popup_centered_minsize();
return;
}
Polygon2D *polygon_2d_instance = memnew(Polygon2D);
int total_point_count = 0;
@ -362,12 +375,6 @@ void SpriteEditor::_convert_to_polygon_2d_node() {
Vector<Vector2> outline = computed_outline_lines[i];
Vector<Vector2> uv_outline = outline_lines[i];
if (outline.size() < 3) {
err_dialog->set_text(TTR("Invalid geometry, can't create polygon."));
err_dialog->popup_centered_minsize();
return;
}
PoolIntArray pia;
pia.resize(outline.size());
PoolIntArray::Write pia_write = pia.write();
@ -396,16 +403,17 @@ void SpriteEditor::_convert_to_polygon_2d_node() {
}
void SpriteEditor::_create_collision_polygon_2d_node() {
if (computed_outline_lines.empty()) {
err_dialog->set_text(TTR("Invalid geometry, can't create collision polygon."));
err_dialog->popup_centered_minsize();
return;
}
for (int i = 0; i < computed_outline_lines.size(); i++) {
Vector<Vector2> outline = computed_outline_lines[i];
if (outline.size() < 3) {
err_dialog->set_text(TTR("Invalid geometry, can't create collision polygon."));
err_dialog->popup_centered_minsize();
continue;
}
CollisionPolygon2D *collision_polygon_2d_instance = memnew(CollisionPolygon2D);
collision_polygon_2d_instance->set_polygon(outline);
@ -419,16 +427,17 @@ void SpriteEditor::_create_collision_polygon_2d_node() {
}
void SpriteEditor::_create_light_occluder_2d_node() {
if (computed_outline_lines.empty()) {
err_dialog->set_text(TTR("Invalid geometry, can't create light occluder."));
err_dialog->popup_centered_minsize();
return;
}
for (int i = 0; i < computed_outline_lines.size(); i++) {
Vector<Vector2> outline = computed_outline_lines[i];
if (outline.size() < 3) {
err_dialog->set_text(TTR("Invalid geometry, can't create light occluder."));
err_dialog->popup_centered_minsize();
continue;
}
Ref<OccluderPolygon2D> polygon;
polygon.instance();
@ -531,10 +540,14 @@ void SpriteEditor::_debug_uv_draw() {
Ref<Texture> tex = node->get_texture();
ERR_FAIL_COND(!tex.is_valid());
Point2 draw_pos_offset = Point2(1.0, 1.0);
Size2 draw_size_offset = Size2(2.0, 2.0);
debug_uv->set_clip_contents(true);
debug_uv->draw_texture(tex, Point2());
debug_uv->set_custom_minimum_size(tex->get_size());
//debug_uv->draw_set_transform(Vector2(), 0, debug_uv->get_size());
debug_uv->draw_texture(tex, draw_pos_offset);
debug_uv->set_custom_minimum_size(tex->get_size() + draw_size_offset);
debug_uv->draw_set_transform(draw_pos_offset, 0, Size2(1.0, 1.0));
Color color = Color(1.0, 0.8, 0.7);
@ -604,13 +617,21 @@ SpriteEditor::SpriteEditor() {
simplification->set_value(2);
hb->add_child(simplification);
hb->add_spacer();
hb->add_child(memnew(Label(TTR("Shrink (Pixels): "))));
shrink_pixels = memnew(SpinBox);
shrink_pixels->set_min(0);
shrink_pixels->set_max(10);
shrink_pixels->set_step(1);
shrink_pixels->set_value(0);
hb->add_child(shrink_pixels);
hb->add_spacer();
hb->add_child(memnew(Label(TTR("Grow (Pixels): "))));
island_merging = memnew(SpinBox);
island_merging->set_min(0);
island_merging->set_max(10);
island_merging->set_step(1);
island_merging->set_value(2);
hb->add_child(island_merging);
grow_pixels = memnew(SpinBox);
grow_pixels->set_min(0);
grow_pixels->set_max(10);
grow_pixels->set_step(1);
grow_pixels->set_value(2);
hb->add_child(grow_pixels);
hb->add_spacer();
update_preview = memnew(Button);
update_preview->set_text(TTR("Update Preview"));

3
editor/plugins/sprite_editor_plugin.h
View file

@ -67,7 +67,8 @@ class SpriteEditor : public Control {
Vector<int> computed_indices;
SpinBox *simplification;
SpinBox *island_merging;
SpinBox *grow_pixels;
SpinBox *shrink_pixels;
Button *update_preview;
void _menu_option(int p_option);

56
scene/resources/bit_map.cpp
View file

@ -197,16 +197,14 @@ Vector<Vector2> BitMap::_march_square(const Rect2i &rect, const Point2i &start)
| 4 | 8 | <- current pixel (curx,cury)
+---+---+
*/
//NOTE: due to the way we pick points from texture, rect needs to be smaller, otherwise it goes outside 1 pixel
Rect2i fixed_rect = Rect2i(rect.position, rect.size - Size2i(2, 2));
Point2i tl = Point2i(curx - 1, cury - 1);
sv += (fixed_rect.has_point(tl) && get_bit(tl)) ? 1 : 0;
sv += (rect.has_point(tl) && get_bit(tl)) ? 1 : 0;
Point2i tr = Point2i(curx, cury - 1);
sv += (fixed_rect.has_point(tr) && get_bit(tr)) ? 2 : 0;
sv += (rect.has_point(tr) && get_bit(tr)) ? 2 : 0;
Point2i bl = Point2i(curx - 1, cury);
sv += (fixed_rect.has_point(bl) && get_bit(bl)) ? 4 : 0;
sv += (rect.has_point(bl) && get_bit(bl)) ? 4 : 0;
Point2i br = Point2i(curx, cury);
sv += (fixed_rect.has_point(br) && get_bit(br)) ? 8 : 0;
sv += (rect.has_point(br) && get_bit(br)) ? 8 : 0;
ERR_FAIL_COND_V(sv == 0 || sv == 15, Vector<Vector2>());
}
@ -300,15 +298,15 @@ Vector<Vector2> BitMap::_march_square(const Rect2i &rect, const Point2i &start)
+---+---+
| 4 | |
+---+---+
this normally go RIGHT, but if its coming from UP, it should go LEFT
this normally go RIGHT, but if its coming from RIGHT, it should go LEFT
*/
if (case6s.has(Point2i(curx, cury))) {
//found, so we go down, and delete from case6s;
//found, so we go left, and delete from case6s;
stepx = -1;
stepy = 0;
case6s.erase(Point2i(curx, cury));
} else {
//not found, we go up, and add to case6s;
//not found, we go right, and add to case6s;
stepx = 1;
stepy = 0;
case6s.insert(Point2i(curx, cury));
@ -510,12 +508,19 @@ Vector<Vector<Vector2> > BitMap::clip_opaque_to_polygons(const Rect2 &p_rect, fl
for (int j = r.position.x; j < r.position.x + r.size.width; j++) {
if (!fill->get_bit(Point2(j, i)) && get_bit(Point2(j, i))) {
fill_bits(this, fill, Point2i(j, i), r);
Vector<Vector2> polygon = _march_square(r, Point2i(j, i));
print_verbose("BitMap: Pre reduce: " + itos(polygon.size()));
polygon = reduce(polygon, r, p_epsilon);
print_verbose("BitMap: Post reduce: " + itos(polygon.size()));
if (polygon.size() < 3) {
print_verbose("Invalid polygon, skipped");
continue;
}
polygons.push_back(polygon);
fill_bits(this, fill, Point2i(j, i), r);
}
}
}
@ -525,6 +530,13 @@ Vector<Vector<Vector2> > BitMap::clip_opaque_to_polygons(const Rect2 &p_rect, fl
void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) {
if (p_pixels == 0) {
return;
}
bool bit_value = (p_pixels > 0) ? true : false;
p_pixels = Math::abs(p_pixels);
Rect2i r = Rect2i(0, 0, width, height).clip(p_rect);
Ref<BitMap> copy;
@ -534,7 +546,7 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) {
for (int i = r.position.y; i < r.position.y + r.size.height; i++) {
for (int j = r.position.x; j < r.position.x + r.size.width; j++) {
if (copy->get_bit(Point2(j, i)))
if (bit_value == get_bit(Point2(j, i)))
continue;
bool found = false;
@ -542,16 +554,21 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) {
for (int y = i - p_pixels; y <= i + p_pixels; y++) {
for (int x = j - p_pixels; x <= j + p_pixels; x++) {
if (x < p_rect.position.x || x >= p_rect.position.x + p_rect.size.x)
continue;
if (y < p_rect.position.y || y >= p_rect.position.y + p_rect.size.y)
continue;
bool outside = false;
if ((x < p_rect.position.x) || (x >= p_rect.position.x + p_rect.size.x) || (y < p_rect.position.y) || (y >= p_rect.position.y + p_rect.size.y)) {
// outside of rectangle counts as bit not set
if (!bit_value)
outside = true;
else
continue;
}
float d = Point2(j, i).distance_to(Point2(x, y)) - CMP_EPSILON;
if (d > p_pixels)
continue;
if (copy->get_bit(Point2(x, y))) {
if (outside || (bit_value == copy->get_bit(Point2(x, y)))) {
found = true;
break;
}
@ -561,12 +578,17 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) {
}
if (found) {
set_bit(Point2(j, i), true);
set_bit(Point2(j, i), bit_value);
}
}
}
}
void BitMap::shrink_mask(int p_pixels, const Rect2 &p_rect) {
grow_mask(-p_pixels, p_rect);
}
Array BitMap::_opaque_to_polygons_bind(const Rect2 &p_rect, float p_epsilon) const {
Vector<Vector<Vector2> > result = clip_opaque_to_polygons(p_rect, p_epsilon);

1
scene/resources/bit_map.h
View file

@ -67,6 +67,7 @@ public:
void resize(const Size2 &p_new_size);
void grow_mask(int p_pixels, const Rect2 &p_rect);
void shrink_mask(int p_pixels, const Rect2 &p_rect);
void blit(const Vector2 &p_pos, const Ref<BitMap> &p_bitmap);
Ref<Image> convert_to_image() const;