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Code Releases Wiki Activity

Show the 3D transform gizmo in the center when otherwise offscreen

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This commit is contained in:
Aaron Franke
2022-02-01 09:23:14 -06:00
parent 76ce5c16f3
commit 4234a72b25
2 changed files with 137 additions and 45 deletions
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103
editor/plugins/node_3d_editor_plugin.cpp
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@@ -886,13 +886,15 @@ void Node3DEditorViewport::_update_name() {
view_menu->reset_size();
}
void Node3DEditorViewport::_compute_edit(const Point2 &p_point) {
void Node3DEditorViewport::_compute_edit(const Point2 &p_point, const bool p_auto_center) {
_edit.original_local = spatial_editor->are_local_coords_enabled();
_edit.click_ray = _get_ray(p_point);
_edit.click_ray_pos = _get_ray_pos(p_point);
_edit.plane = TRANSFORM_VIEW;
if (p_auto_center) {
_edit.center = spatial_editor->get_gizmo_transform().origin;
}
spatial_editor->update_transform_gizmo();
_edit.center = spatial_editor->get_gizmo_transform().origin;
Node3D *selected = spatial_editor->get_single_selected_node();
Node3DEditorSelectedItem *se = selected ? editor_selection->get_node_editor_data<Node3DEditorSelectedItem>(selected) : nullptr;
@@ -1364,6 +1366,7 @@ void Node3DEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
}
}
_edit.center = spatial_editor->get_gizmo_target_center();
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
@@ -3364,7 +3367,7 @@ void Node3DEditorViewport::update_transform_gizmo_view() {
Transform3D xform = spatial_editor->get_gizmo_transform();
Transform3D camera_xform = camera->get_transform();
const Transform3D camera_xform = camera->get_transform();
if (xform.origin.is_equal_approx(camera_xform.origin)) {
for (int i = 0; i < 3; i++) {
@@ -3383,11 +3386,63 @@ void Node3DEditorViewport::update_transform_gizmo_view() {
const Vector3 camz = -camera_xform.get_basis().get_axis(2).normalized();
const Vector3 camy = -camera_xform.get_basis().get_axis(1).normalized();
const Plane p = Plane(camz, camera_xform.origin);
const real_t gizmo_d = MAX(Math::abs(p.distance_to(xform.origin)), CMP_EPSILON);
const real_t gizmo_d = CLAMP(Math::abs(p.distance_to(xform.origin)), camera->get_near() * 2, camera->get_far() / 2);
const real_t d0 = camera->unproject_position(camera_xform.origin + camz * gizmo_d).y;
const real_t d1 = camera->unproject_position(camera_xform.origin + camz * gizmo_d + camy).y;
const real_t dd = MAX(Math::abs(d0 - d1), CMP_EPSILON);
// This code ensures the gizmo stays on the screen. This includes if
// the gizmo would otherwise be behind the camera, to the sides of
// the camera, too close to the edge of the screen, too close to
// the camera, or too far away from the camera. First we calculate
// where the gizmo would go on screen, then we put it there.
const Vector3 object_position = spatial_editor->get_gizmo_target_center();
Vector2 gizmo_screen_position = camera->unproject_position(object_position);
const Vector2 viewport_size = viewport->get_size();
// We would use "camera.is_position_behind(parent_translation)" instead of dot,
// except that it also accounts for the near clip plane, which we don't want.
const bool is_in_front = camera_xform.basis.get_column(2).dot(object_position - camera_xform.origin) < 0;
const bool is_in_viewport = is_in_front && Rect2(Vector2(0, 0), viewport_size).has_point(gizmo_screen_position);
if (spatial_editor->is_keep_gizmo_onscreen_enabled()) {
if (!spatial_editor->is_gizmo_visible() || is_in_viewport) {
// In this case, the gizmo is either not visible, or in the viewport
// already, so we should hide the offscreen line.
gizmo_offscreen_line->hide();
} else {
// In this case, the point is not "normally" on screen, and
// it should be placed in the center.
const Vector2 half_viewport_size = viewport_size / 2;
gizmo_screen_position = half_viewport_size;
// The rest of this is for drawing the offscreen line.
// One point goes in the center of the viewport.
// Calculate where to put the other point of the line.
Vector2 unprojected_position = camera->unproject_position(object_position);
if (!is_in_front) {
// When the object is behind, we need to flip and grow the line.
unprojected_position -= half_viewport_size;
unprojected_position = unprojected_position.normalized() * -half_viewport_size.length_squared();
unprojected_position += half_viewport_size;
}
gizmo_offscreen_line->point1 = half_viewport_size;
gizmo_offscreen_line->point2 = unprojected_position;
gizmo_offscreen_line->update();
gizmo_offscreen_line->show();
}
// Update the gizmo's position using what we calculated.
xform.origin = camera->project_position(gizmo_screen_position, gizmo_d);
} else {
// In this case, the user does not want the gizmo to be
// kept on screen, so we should hide the offscreen line,
// and just use the gizmo's unmodified position.
gizmo_offscreen_line->hide();
if (is_in_viewport) {
xform.origin = camera->project_position(gizmo_screen_position, gizmo_d);
} else {
xform.origin = object_position;
}
}
spatial_editor->set_gizmo_transform(xform);
const real_t gizmo_size = EditorSettings::get_singleton()->get("editors/3d/manipulator_gizmo_size");
// At low viewport heights, multiply the gizmo scale based on the viewport height.
// This prevents the gizmo from growing very large and going outside the viewport.
@@ -3396,7 +3451,6 @@ void Node3DEditorViewport::update_transform_gizmo_view() {
(gizmo_size / Math::abs(dd)) * MAX(1, EDSCALE) *
MIN(viewport_base_height, subviewport_container->get_size().height) / viewport_base_height /
subviewport_container->get_stretch_shrink();
Vector3 scale = Vector3(1, 1, 1) * gizmo_scale;
// if the determinant is zero, we should disable the gizmo from being rendered
// this prevents supplying bad values to the renderer and then having to filter it out again
@@ -3418,7 +3472,7 @@ void Node3DEditorViewport::update_transform_gizmo_view() {
if (xform.basis.get_axis(i).normalized().dot(xform.basis.get_axis((i + 1) % 3).normalized()) < 1.0) {
axis_angle = axis_angle.looking_at(xform.basis.get_axis(i).normalized(), xform.basis.get_axis((i + 1) % 3).normalized());
}
axis_angle.basis.scale(scale);
axis_angle.basis *= gizmo_scale;
axis_angle.origin = xform.origin;
RenderingServer::get_singleton()->instance_set_transform(move_gizmo_instance[i], axis_angle);
RenderingServer::get_singleton()->instance_set_visible(move_gizmo_instance[i], spatial_editor->is_gizmo_visible() && (spatial_editor->get_tool_mode() == Node3DEditor::TOOL_MODE_SELECT || spatial_editor->get_tool_mode() == Node3DEditor::TOOL_MODE_MOVE));
@@ -3441,7 +3495,7 @@ void Node3DEditorViewport::update_transform_gizmo_view() {
// Rotation white outline
xform.orthonormalize();
xform.basis.scale(scale);
xform.basis *= gizmo_scale;
RenderingServer::get_singleton()->instance_set_transform(rotate_gizmo_instance[3], xform);
RenderingServer::get_singleton()->instance_set_visible(rotate_gizmo_instance[3], spatial_editor->is_gizmo_visible() && (spatial_editor->get_tool_mode() == Node3DEditor::TOOL_MODE_SELECT || spatial_editor->get_tool_mode() == Node3DEditor::TOOL_MODE_ROTATE));
}
@@ -4023,7 +4077,7 @@ void Node3DEditorViewport::drop_data_fw(const Point2 &p_point, const Variant &p_
void Node3DEditorViewport::begin_transform(TransformMode p_mode, bool instant) {
if (get_selected_count() > 0) {
_edit.mode = p_mode;
_compute_edit(_edit.mouse_pos);
_compute_edit(_edit.mouse_pos, false);
_edit.instant = instant;
_edit.snap = spatial_editor->is_snap_enabled();
}
@@ -4426,15 +4480,14 @@ Node3DEditorViewport::Node3DEditorViewport(Node3DEditor *p_spatial_editor, Edito
zoom_indicator_delay = 0.0;
spatial_editor = p_spatial_editor;
SubViewportContainer *c = memnew(SubViewportContainer);
subviewport_container = c;
c->set_stretch(true);
add_child(c);
c->set_anchors_and_offsets_preset(Control::PRESET_WIDE);
subviewport_container = memnew(SubViewportContainer);
subviewport_container->set_stretch(true);
add_child(subviewport_container);
subviewport_container->set_anchors_and_offsets_preset(Control::PRESET_WIDE);
viewport = memnew(SubViewport);
viewport->set_disable_input(true);
c->add_child(viewport);
subviewport_container->add_child(viewport);
surface = memnew(Control);
surface->set_drag_forwarding(this);
add_child(surface);
@@ -4447,6 +4500,9 @@ Node3DEditorViewport::Node3DEditorViewport(Node3DEditor *p_spatial_editor, Edito
camera->make_current();
surface->set_focus_mode(FOCUS_ALL);
gizmo_offscreen_line = memnew(GizmoOffScreenLine);
subviewport_container->add_child(gizmo_offscreen_line);
VBoxContainer *vbox = memnew(VBoxContainer);
surface->add_child(vbox);
vbox->set_offset(SIDE_LEFT, 10 * EDSCALE);
@@ -5071,6 +5127,7 @@ void Node3DEditor::update_transform_gizmo() {
gizmo.visible = count > 0;
gizmo.transform.origin = (count > 0) ? gizmo_center / count : Vector3();
gizmo.transform.basis = (count == 1) ? gizmo_basis : Basis();
gizmo.target_center = gizmo_center / count;
for (uint32_t i = 0; i < VIEWPORTS_COUNT; i++) {
viewports[i]->update_transform_gizmo_view();
@@ -5223,6 +5280,7 @@ Dictionary Node3DEditor::get_state() const {
d["show_grid"] = view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(MENU_VIEW_GRID));
d["show_origin"] = view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(MENU_VIEW_ORIGIN));
d["keep_gizmo_onscreen"] = view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(MENU_KEEP_GIZMO_ONSCREEN));
d["fov"] = get_fov();
d["znear"] = get_znear();
d["zfar"] = get_zfar();
@@ -5347,6 +5405,13 @@ void Node3DEditor::set_state(const Dictionary &p_state) {
RenderingServer::get_singleton()->instance_set_visible(origin_instance, use);
}
}
if (d.has("keep_gizmo_onscreen")) {
bool use = d["keep_gizmo_onscreen"];
if (use != view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(MENU_KEEP_GIZMO_ONSCREEN))) {
_menu_item_pressed(MENU_KEEP_GIZMO_ONSCREEN);
}
}
if (d.has("gizmos_status")) {
Dictionary gizmos_status = d["gizmos_status"];
@@ -5700,7 +5765,13 @@ void Node3DEditor::_menu_item_pressed(int p_option) {
_init_grid();
view_menu->get_popup()->set_item_checked(view_menu->get_popup()->get_item_index(p_option), grid_enabled);
} break;
case MENU_KEEP_GIZMO_ONSCREEN: {
keep_gizmo_onscreen = !view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(p_option));
for (uint32_t i = 0; i < VIEWPORTS_COUNT; i++) {
get_editor_viewport(i)->update_transform_gizmo_view();
}
view_menu->get_popup()->set_item_checked(view_menu->get_popup()->get_item_index(p_option), keep_gizmo_onscreen);
} break;
case MENU_VIEW_CAMERA_SETTINGS: {
settings_dialog->popup_centered(settings_vbc->get_combined_minimum_size() + Size2(50, 50));
@@ -7685,12 +7756,14 @@ Node3DEditor::Node3DEditor(EditorNode *p_editor) {
p->add_separator();
p->add_check_shortcut(ED_SHORTCUT("spatial_editor/view_origin", TTR("View Origin")), MENU_VIEW_ORIGIN);
p->add_check_shortcut(ED_SHORTCUT("spatial_editor/view_grid", TTR("View Grid"), Key::NUMBERSIGN), MENU_VIEW_GRID);
p->add_check_shortcut(ED_SHORTCUT("spatial_editor/keep_gizmo_onscreen", TTR("Keep Gizmo On Screen"), KeyModifierMask::CMD + KeyModifierMask::ALT + Key::G), MENU_KEEP_GIZMO_ONSCREEN);
p->add_separator();
p->add_shortcut(ED_SHORTCUT("spatial_editor/settings", TTR("Settings...")), MENU_VIEW_CAMERA_SETTINGS);
p->set_item_checked(p->get_item_index(MENU_VIEW_ORIGIN), true);
p->set_item_checked(p->get_item_index(MENU_VIEW_GRID), true);
p->set_item_checked(p->get_item_index(MENU_KEEP_GIZMO_ONSCREEN), true);
p->connect("id_pressed", callable_mp(this, &Node3DEditor::_menu_item_pressed));