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Improve dragging scene into 3D viewport

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This commit is contained in:
Haoyu Qiu 2022-11-01 18:58:16 +08:00
parent eb0b5d38d1
commit f32f4ec051
1 changed files with 27 additions and 6 deletions
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33
editor/plugins/spatial_editor_plugin.cpp
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@ -3674,20 +3674,41 @@ void SpatialEditorViewport::assign_pending_data_pointers(Spatial *p_preview_node
Vector3 SpatialEditorViewport::_get_instance_position(const Point2 &p_pos) const {
const float MAX_DISTANCE = 50.0;
const float FALLBACK_DISTANCE = 5.0;
Vector3 world_ray = _get_ray(p_pos);
Vector3 world_pos = _get_ray_pos(p_pos);
Vector3 point = world_pos + world_ray * MAX_DISTANCE;
PhysicsDirectSpaceState *ss = get_tree()->get_root()->get_world()->get_direct_space_state();
PhysicsDirectSpaceState::RayResult result;
if (ss->intersect_ray(world_pos, world_pos + world_ray * MAX_DISTANCE, result)) {
point = result.position;
if (ss->intersect_ray(world_pos, world_pos + world_ray * camera->get_zfar(), result)) {
return result.position;
}
return point;
const bool is_orthogonal = camera->get_projection() == Camera::PROJECTION_ORTHOGONAL;
// The XZ plane.
Vector3 intersection;
Plane plane(Vector3(0, 1, 0), 0);
if (plane.intersects_ray(world_pos, world_ray, &intersection)) {
if (is_orthogonal || world_pos.distance_to(intersection) <= MAX_DISTANCE) {
return intersection;
}
}
// Plane facing the camera using fallback distance.
if (is_orthogonal) {
plane = Plane(cursor.pos - world_ray * (cursor.distance - FALLBACK_DISTANCE), world_ray);
} else {
plane = Plane(world_pos + world_ray * FALLBACK_DISTANCE, world_ray);
}
if (plane.intersects_ray(world_pos, world_ray, &intersection)) {
return intersection;
}
// Not likely, but just in case...
return world_pos + world_ray * FALLBACK_DISTANCE;
}
AABB SpatialEditorViewport::_calculate_spatial_bounds(const Spatial *p_parent, bool p_exclude_toplevel_transform) {
@ -3975,7 +3996,7 @@ bool SpatialEditorViewport::can_drop_data_fw(const Point2 &p_point, const Varian
}
if (can_instance) {
Transform global_transform = Transform(Basis(), _get_instance_position(p_point));
Transform global_transform = Transform(Basis(), spatial_editor->snap_point(_get_instance_position(p_point)));
preview_node->set_global_transform(global_transform);
}