summaryrefslogtreecommitdiff
path: root/servers
diff options
context:
space:
mode:
Diffstat (limited to 'servers')
-rw-r--r--servers/rendering/renderer_canvas_cull.cpp44
-rw-r--r--servers/rendering/renderer_canvas_cull.h10
-rw-r--r--servers/rendering/renderer_viewport.cpp8
-rw-r--r--servers/rendering/renderer_viewport.h4
-rw-r--r--servers/rendering/rendering_server_default.h4
-rw-r--r--servers/rendering_server.cpp2
-rw-r--r--servers/rendering_server.h2
7 files changed, 57 insertions, 17 deletions
diff --git a/servers/rendering/renderer_canvas_cull.cpp b/servers/rendering/renderer_canvas_cull.cpp
index ffd8f695c6..41d4ca8d5e 100644
--- a/servers/rendering/renderer_canvas_cull.cpp
+++ b/servers/rendering/renderer_canvas_cull.cpp
@@ -38,17 +38,17 @@
static const int z_range = RS::CANVAS_ITEM_Z_MAX - RS::CANVAS_ITEM_Z_MIN + 1;
-void RendererCanvasCull::_render_canvas_item_tree(RID p_to_render_target, Canvas::ChildItem *p_child_items, int p_child_item_count, Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, RenderingServer::CanvasItemTextureFilter p_default_filter, RenderingServer::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_vertices_to_pixel) {
+void RendererCanvasCull::_render_canvas_item_tree(RID p_to_render_target, Canvas::ChildItem *p_child_items, int p_child_item_count, Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, RenderingServer::CanvasItemTextureFilter p_default_filter, RenderingServer::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_vertices_to_pixel, uint32_t canvas_cull_mask) {
RENDER_TIMESTAMP("Cull CanvasItem Tree");
memset(z_list, 0, z_range * sizeof(RendererCanvasRender::Item *));
memset(z_last_list, 0, z_range * sizeof(RendererCanvasRender::Item *));
for (int i = 0; i < p_child_item_count; i++) {
- _cull_canvas_item(p_child_items[i].item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, nullptr, nullptr, true);
+ _cull_canvas_item(p_child_items[i].item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, nullptr, nullptr, true, canvas_cull_mask);
}
if (p_canvas_item) {
- _cull_canvas_item(p_canvas_item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, nullptr, nullptr, true);
+ _cull_canvas_item(p_canvas_item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, nullptr, nullptr, true, canvas_cull_mask);
}
RendererCanvasRender::Item *list = nullptr;
@@ -223,13 +223,17 @@ void RendererCanvasCull::_attach_canvas_item_for_draw(RendererCanvasCull::Item *
}
}
-void RendererCanvasCull::_cull_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RendererCanvasRender::Item **r_z_list, RendererCanvasRender::Item **r_z_last_list, Item *p_canvas_clip, Item *p_material_owner, bool allow_y_sort) {
+void RendererCanvasCull::_cull_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RendererCanvasRender::Item **r_z_list, RendererCanvasRender::Item **r_z_last_list, Item *p_canvas_clip, Item *p_material_owner, bool allow_y_sort, uint32_t canvas_cull_mask) {
Item *ci = p_canvas_item;
if (!ci->visible) {
return;
}
+ if (!(ci->visibility_layer & canvas_cull_mask)) {
+ return;
+ }
+
if (ci->children_order_dirty) {
ci->child_items.sort_custom<ItemIndexSort>();
ci->children_order_dirty = false;
@@ -313,7 +317,7 @@ void RendererCanvasCull::_cull_canvas_item(Item *p_canvas_item, const Transform2
sorter.sort(child_items, child_item_count);
for (i = 0; i < child_item_count; i++) {
- _cull_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, child_items[i]->ysort_parent_abs_z_index, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, (Item *)child_items[i]->material_owner, false);
+ _cull_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, child_items[i]->ysort_parent_abs_z_index, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, (Item *)child_items[i]->material_owner, false, canvas_cull_mask);
}
} else {
RendererCanvasRender::Item *canvas_group_from = nullptr;
@@ -337,19 +341,19 @@ void RendererCanvasCull::_cull_canvas_item(Item *p_canvas_item, const Transform2
if (!child_items[i]->behind && !use_canvas_group) {
continue;
}
- _cull_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, p_material_owner, true);
+ _cull_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, p_material_owner, true, canvas_cull_mask);
}
_attach_canvas_item_for_draw(ci, p_canvas_clip, r_z_list, r_z_last_list, xform, p_clip_rect, global_rect, modulate, p_z, p_material_owner, use_canvas_group, canvas_group_from, xform);
for (int i = 0; i < child_item_count; i++) {
if (child_items[i]->behind || use_canvas_group) {
continue;
}
- _cull_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, p_material_owner, true);
+ _cull_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, r_z_list, r_z_last_list, (Item *)ci->final_clip_owner, p_material_owner, true, canvas_cull_mask);
}
}
}
-void RendererCanvasCull::render_canvas(RID p_render_target, Canvas *p_canvas, const Transform2D &p_transform, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, const Rect2 &p_clip_rect, RenderingServer::CanvasItemTextureFilter p_default_filter, RenderingServer::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_transforms_to_pixel, bool p_snap_2d_vertices_to_pixel) {
+void RendererCanvasCull::render_canvas(RID p_render_target, Canvas *p_canvas, const Transform2D &p_transform, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, const Rect2 &p_clip_rect, RenderingServer::CanvasItemTextureFilter p_default_filter, RenderingServer::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_transforms_to_pixel, bool p_snap_2d_vertices_to_pixel, uint32_t canvas_cull_mask) {
RENDER_TIMESTAMP("> Render Canvas");
sdf_used = false;
@@ -372,26 +376,26 @@ void RendererCanvasCull::render_canvas(RID p_render_target, Canvas *p_canvas, co
}
if (!has_mirror) {
- _render_canvas_item_tree(p_render_target, ci, l, nullptr, p_transform, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel);
+ _render_canvas_item_tree(p_render_target, ci, l, nullptr, p_transform, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel, canvas_cull_mask);
} else {
//used for parallaxlayer mirroring
for (int i = 0; i < l; i++) {
const Canvas::ChildItem &ci2 = p_canvas->child_items[i];
- _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, p_transform, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel);
+ _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, p_transform, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel, canvas_cull_mask);
//mirroring (useful for scrolling backgrounds)
if (ci2.mirror.x != 0) {
Transform2D xform2 = p_transform * Transform2D(0, Vector2(ci2.mirror.x, 0));
- _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel);
+ _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel, canvas_cull_mask);
}
if (ci2.mirror.y != 0) {
Transform2D xform2 = p_transform * Transform2D(0, Vector2(0, ci2.mirror.y));
- _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel);
+ _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel, canvas_cull_mask);
}
if (ci2.mirror.y != 0 && ci2.mirror.x != 0) {
Transform2D xform2 = p_transform * Transform2D(0, ci2.mirror);
- _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel);
+ _render_canvas_item_tree(p_render_target, nullptr, 0, ci2.item, xform2, p_clip_rect, p_canvas->modulate, p_lights, p_directional_lights, p_default_filter, p_default_repeat, p_snap_2d_vertices_to_pixel, canvas_cull_mask);
}
}
}
@@ -513,6 +517,20 @@ void RendererCanvasCull::canvas_item_set_transform(RID p_item, const Transform2D
canvas_item->xform = p_transform;
}
+void RendererCanvasCull::canvas_item_set_visibility_layer(RID p_item, uint32_t p_visibility_layer) {
+ Item *canvas_item = canvas_item_owner.get_or_null(p_item);
+ ERR_FAIL_COND(!canvas_item);
+
+ canvas_item->visibility_layer = p_visibility_layer;
+}
+
+uint32_t RendererCanvasCull::canvas_item_get_visibility_layer(RID p_item) {
+ Item *canvas_item = canvas_item_owner.get_or_null(p_item);
+ if (!canvas_item)
+ return 0;
+ return canvas_item->visibility_layer;
+}
+
void RendererCanvasCull::canvas_item_set_clip(RID p_item, bool p_clip) {
Item *canvas_item = canvas_item_owner.get_or_null(p_item);
ERR_FAIL_COND(!canvas_item);
diff --git a/servers/rendering/renderer_canvas_cull.h b/servers/rendering/renderer_canvas_cull.h
index 7a01fad9de..198e1020f0 100644
--- a/servers/rendering/renderer_canvas_cull.h
+++ b/servers/rendering/renderer_canvas_cull.h
@@ -54,6 +54,7 @@ public:
Vector2 ysort_pos;
int ysort_index;
int ysort_parent_abs_z_index; // Absolute Z index of parent. Only populated and used when y-sorting.
+ uint32_t visibility_layer = 0xffffffff;
Vector<Item *> child_items;
@@ -179,14 +180,14 @@ public:
_FORCE_INLINE_ void _attach_canvas_item_for_draw(Item *ci, Item *p_canvas_clip, RendererCanvasRender::Item **r_z_list, RendererCanvasRender::Item **r_z_last_list, const Transform2D &xform, const Rect2 &p_clip_rect, Rect2 global_rect, const Color &modulate, int p_z, RendererCanvasCull::Item *p_material_owner, bool p_use_canvas_group, RendererCanvasRender::Item *canvas_group_from, const Transform2D &p_xform);
private:
- void _render_canvas_item_tree(RID p_to_render_target, Canvas::ChildItem *p_child_items, int p_child_item_count, Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, RS::CanvasItemTextureFilter p_default_filter, RS::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_vertices_to_pixel);
- void _cull_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RendererCanvasRender::Item **r_z_list, RendererCanvasRender::Item **r_z_last_list, Item *p_canvas_clip, Item *p_material_owner, bool allow_y_sort);
+ void _render_canvas_item_tree(RID p_to_render_target, Canvas::ChildItem *p_child_items, int p_child_item_count, Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, RS::CanvasItemTextureFilter p_default_filter, RS::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_vertices_to_pixel, uint32_t canvas_cull_mask);
+ void _cull_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RendererCanvasRender::Item **r_z_list, RendererCanvasRender::Item **r_z_last_list, Item *p_canvas_clip, Item *p_material_owner, bool allow_y_sort, uint32_t canvas_cull_mask);
RendererCanvasRender::Item **z_list;
RendererCanvasRender::Item **z_last_list;
public:
- void render_canvas(RID p_render_target, Canvas *p_canvas, const Transform2D &p_transform, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, const Rect2 &p_clip_rect, RS::CanvasItemTextureFilter p_default_filter, RS::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_transforms_to_pixel, bool p_snap_2d_vertices_to_pixel);
+ void render_canvas(RID p_render_target, Canvas *p_canvas, const Transform2D &p_transform, RendererCanvasRender::Light *p_lights, RendererCanvasRender::Light *p_directional_lights, const Rect2 &p_clip_rect, RS::CanvasItemTextureFilter p_default_filter, RS::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_transforms_to_pixel, bool p_snap_2d_vertices_to_pixel, uint32_t canvas_cull_mask);
bool was_sdf_used();
@@ -206,6 +207,9 @@ public:
void canvas_item_set_visible(RID p_item, bool p_visible);
void canvas_item_set_light_mask(RID p_item, int p_mask);
+ void canvas_item_set_visibility_layer(RID p_item, uint32_t p_layer);
+ uint32_t canvas_item_get_visibility_layer(RID p_item);
+
void canvas_item_set_transform(RID p_item, const Transform2D &p_transform);
void canvas_item_set_clip(RID p_item, bool p_clip);
void canvas_item_set_distance_field_mode(RID p_item, bool p_enable);
diff --git a/servers/rendering/renderer_viewport.cpp b/servers/rendering/renderer_viewport.cpp
index 4f7683493b..9bbcb015bb 100644
--- a/servers/rendering/renderer_viewport.cpp
+++ b/servers/rendering/renderer_viewport.cpp
@@ -530,7 +530,7 @@ void RendererViewport::_draw_viewport(Viewport *p_viewport) {
ptr = ptr->filter_next_ptr;
}
- RSG::canvas->render_canvas(p_viewport->render_target, canvas, xform, canvas_lights, canvas_directional_lights, clip_rect, p_viewport->texture_filter, p_viewport->texture_repeat, p_viewport->snap_2d_transforms_to_pixel, p_viewport->snap_2d_vertices_to_pixel);
+ RSG::canvas->render_canvas(p_viewport->render_target, canvas, xform, canvas_lights, canvas_directional_lights, clip_rect, p_viewport->texture_filter, p_viewport->texture_repeat, p_viewport->snap_2d_transforms_to_pixel, p_viewport->snap_2d_vertices_to_pixel, p_viewport->canvas_cull_mask);
if (RSG::canvas->was_sdf_used()) {
p_viewport->sdf_active = true;
}
@@ -1349,6 +1349,12 @@ void RendererViewport::set_default_clear_color(const Color &p_color) {
RSG::texture_storage->set_default_clear_color(p_color);
}
+void RendererViewport::viewport_set_canvas_cull_mask(RID p_viewport, uint32_t p_canvas_cull_mask) {
+ Viewport *viewport = viewport_owner.get_or_null(p_viewport);
+ ERR_FAIL_COND(!viewport);
+ viewport->canvas_cull_mask = p_canvas_cull_mask;
+}
+
// Workaround for setting this on thread.
void RendererViewport::call_set_vsync_mode(DisplayServer::VSyncMode p_mode, DisplayServer::WindowID p_window) {
DisplayServer::get_singleton()->window_set_vsync_mode(p_mode, p_window);
diff --git a/servers/rendering/renderer_viewport.h b/servers/rendering/renderer_viewport.h
index 55058a30b8..5e0c090ec0 100644
--- a/servers/rendering/renderer_viewport.h
+++ b/servers/rendering/renderer_viewport.h
@@ -117,6 +117,8 @@ public:
bool transparent_bg = false;
+ uint32_t canvas_cull_mask = 0xffffffff;
+
struct CanvasKey {
int64_t stacking;
RID canvas;
@@ -249,6 +251,8 @@ public:
void viewport_set_global_canvas_transform(RID p_viewport, const Transform2D &p_transform);
void viewport_set_canvas_stacking(RID p_viewport, RID p_canvas, int p_layer, int p_sublayer);
+ void viewport_set_canvas_cull_mask(RID p_viewport, uint32_t p_canvas_cull_mask);
+
void viewport_set_positional_shadow_atlas_size(RID p_viewport, int p_size, bool p_16_bits = true);
void viewport_set_positional_shadow_atlas_quadrant_subdivision(RID p_viewport, int p_quadrant, int p_subdiv);
diff --git a/servers/rendering/rendering_server_default.h b/servers/rendering/rendering_server_default.h
index a68c7ddf2c..6d2d0d9906 100644
--- a/servers/rendering/rendering_server_default.h
+++ b/servers/rendering/rendering_server_default.h
@@ -610,6 +610,8 @@ public:
FUNC2(viewport_set_disable_environment, RID, bool)
FUNC2(viewport_set_disable_3d, RID, bool)
+ FUNC2(viewport_set_canvas_cull_mask, RID, uint32_t)
+
FUNC2(viewport_attach_camera, RID, RID)
FUNC2(viewport_set_scenario, RID, RID)
FUNC2(viewport_attach_canvas, RID, RID)
@@ -828,6 +830,8 @@ public:
FUNC2(canvas_item_set_visible, RID, bool)
FUNC2(canvas_item_set_light_mask, RID, int)
+ FUNC2(canvas_item_set_visibility_layer, RID, uint32_t)
+
FUNC2(canvas_item_set_update_when_visible, RID, bool)
FUNC2(canvas_item_set_transform, RID, const Transform2D &)
diff --git a/servers/rendering_server.cpp b/servers/rendering_server.cpp
index e1a3fe46be..cf30d377b7 100644
--- a/servers/rendering_server.cpp
+++ b/servers/rendering_server.cpp
@@ -2182,6 +2182,7 @@ void RenderingServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("viewport_set_parent_viewport", "viewport", "parent_viewport"), &RenderingServer::viewport_set_parent_viewport);
ClassDB::bind_method(D_METHOD("viewport_attach_to_screen", "viewport", "rect", "screen"), &RenderingServer::viewport_attach_to_screen, DEFVAL(Rect2()), DEFVAL(DisplayServer::MAIN_WINDOW_ID));
ClassDB::bind_method(D_METHOD("viewport_set_render_direct_to_screen", "viewport", "enabled"), &RenderingServer::viewport_set_render_direct_to_screen);
+ ClassDB::bind_method(D_METHOD("viewport_set_canvas_cull_mask", "viewport", "canvas_cull_mask"), &RenderingServer::viewport_set_canvas_cull_mask);
ClassDB::bind_method(D_METHOD("viewport_set_scaling_3d_mode", "viewport", "scaling_3d_mode"), &RenderingServer::viewport_set_scaling_3d_mode);
ClassDB::bind_method(D_METHOD("viewport_set_scaling_3d_scale", "viewport", "scale"), &RenderingServer::viewport_set_scaling_3d_scale);
@@ -2575,6 +2576,7 @@ void RenderingServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("canvas_item_set_default_texture_repeat", "item", "repeat"), &RenderingServer::canvas_item_set_default_texture_repeat);
ClassDB::bind_method(D_METHOD("canvas_item_set_visible", "item", "visible"), &RenderingServer::canvas_item_set_visible);
ClassDB::bind_method(D_METHOD("canvas_item_set_light_mask", "item", "mask"), &RenderingServer::canvas_item_set_light_mask);
+ ClassDB::bind_method(D_METHOD("canvas_item_set_visibility_layer", "item", "visibility_layer"), &RenderingServer::canvas_item_set_visibility_layer);
ClassDB::bind_method(D_METHOD("canvas_item_set_transform", "item", "transform"), &RenderingServer::canvas_item_set_transform);
ClassDB::bind_method(D_METHOD("canvas_item_set_clip", "item", "clip"), &RenderingServer::canvas_item_set_clip);
ClassDB::bind_method(D_METHOD("canvas_item_set_distance_field_mode", "item", "enabled"), &RenderingServer::canvas_item_set_distance_field_mode);
diff --git a/servers/rendering_server.h b/servers/rendering_server.h
index 36779690de..97fafd1b14 100644
--- a/servers/rendering_server.h
+++ b/servers/rendering_server.h
@@ -807,6 +807,7 @@ public:
virtual void viewport_set_size(RID p_viewport, int p_width, int p_height) = 0;
virtual void viewport_set_active(RID p_viewport, bool p_active) = 0;
virtual void viewport_set_parent_viewport(RID p_viewport, RID p_parent_viewport) = 0;
+ virtual void viewport_set_canvas_cull_mask(RID p_viewport, uint32_t p_canvas_cull_mask) = 0;
virtual void viewport_attach_to_screen(RID p_viewport, const Rect2 &p_rect = Rect2(), DisplayServer::WindowID p_screen = DisplayServer::MAIN_WINDOW_ID) = 0;
virtual void viewport_set_render_direct_to_screen(RID p_viewport, bool p_enable) = 0;
@@ -1320,6 +1321,7 @@ public:
virtual void canvas_item_set_custom_rect(RID p_item, bool p_custom_rect, const Rect2 &p_rect = Rect2()) = 0;
virtual void canvas_item_set_modulate(RID p_item, const Color &p_color) = 0;
virtual void canvas_item_set_self_modulate(RID p_item, const Color &p_color) = 0;
+ virtual void canvas_item_set_visibility_layer(RID p_item, uint32_t p_visibility_layer) = 0;
virtual void canvas_item_set_draw_behind_parent(RID p_item, bool p_enable) = 0;