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Add drag-and-drop support for materials in 3D

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Add mesh surface picking for material drag & drop, show drag info label
This commit is contained in:
SaracenOne 2022-04-23 13:32:55 +01:00 committed by K. S. Ernest (iFire) Lee
parent abe8b88702
commit 86aa2a8578
4 changed files with 287 additions and 15 deletions
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206
editor/plugins/node_3d_editor_plugin.cpp
View file

@ -514,7 +514,7 @@ void Node3DEditorViewport::_select_clicked(bool p_allow_locked) {
}
}
ObjectID Node3DEditorViewport::_select_ray(const Point2 &p_pos) {
ObjectID Node3DEditorViewport::_select_ray(const Point2 &p_pos) const {
Vector3 ray = _get_ray(p_pos);
Vector3 pos = _get_ray_pos(p_pos);
Vector2 shrinked_pos = p_pos / subviewport_container->get_stretch_shrink();
@ -1259,7 +1259,9 @@ void Node3DEditorViewport::_surface_mouse_enter() {
}
void Node3DEditorViewport::_surface_mouse_exit() {
_remove_preview();
_remove_preview_node();
_reset_preview_material();
_remove_preview_material();
}
void Node3DEditorViewport::_surface_focus_enter() {
@ -2702,6 +2704,13 @@ void Node3DEditorViewport::_notification(int p_what) {
cinema_label->add_theme_style_override("normal", gui_base->get_theme_stylebox(SNAME("Information3dViewport"), SNAME("EditorStyles")));
locked_label->add_theme_style_override("normal", gui_base->get_theme_stylebox(SNAME("Information3dViewport"), SNAME("EditorStyles")));
} break;
case NOTIFICATION_DRAG_END: {
// Clear preview material when dropped outside applicable object.
if (spatial_editor->get_preview_material().is_valid() && !is_drag_successful()) {
_remove_preview_material();
}
} break;
}
}
@ -3793,7 +3802,7 @@ Node *Node3DEditorViewport::_sanitize_preview_node(Node *p_node) const {
return p_node;
}
void Node3DEditorViewport::_create_preview(const Vector<String> &files) const {
void Node3DEditorViewport::_create_preview_node(const Vector<String> &files) const {
for (int i = 0; i < files.size(); i++) {
String path = files[i];
Ref<Resource> res = ResourceLoader::load(path);
@ -3820,7 +3829,7 @@ void Node3DEditorViewport::_create_preview(const Vector<String> &files) const {
*preview_bounds = _calculate_spatial_bounds(preview_node);
}
void Node3DEditorViewport::_remove_preview() {
void Node3DEditorViewport::_remove_preview_node() {
if (preview_node->get_parent()) {
for (int i = preview_node->get_child_count() - 1; i >= 0; i--) {
Node *node = preview_node->get_child(i);
@ -3831,6 +3840,106 @@ void Node3DEditorViewport::_remove_preview() {
}
}
bool Node3DEditorViewport::_apply_preview_material(ObjectID p_target, const Point2 &p_point) const {
_reset_preview_material();
if (p_target.is_null()) {
return false;
}
spatial_editor->set_preview_material_target(p_target);
Object *target_inst = ObjectDB::get_instance(p_target);
bool is_ctrl = Input::get_singleton()->is_key_pressed(Key::CTRL);
MeshInstance3D *mesh_instance = Object::cast_to<MeshInstance3D>(target_inst);
if (is_ctrl && mesh_instance) {
Ref<Mesh> mesh = mesh_instance->get_mesh();
int surface_count = mesh->get_surface_count();
Vector3 world_ray = _get_ray(p_point);
Vector3 world_pos = _get_ray_pos(p_point);
int closest_surface = -1;
float closest_dist = 1e20;
Transform3D gt = mesh_instance->get_global_transform();
Transform3D ai = gt.affine_inverse();
Vector3 xform_ray = ai.basis.xform(world_ray).normalized();
Vector3 xform_pos = ai.xform(world_pos);
for (int surface = 0; surface < surface_count; surface++) {
Ref<TriangleMesh> surface_mesh = mesh->generate_surface_triangle_mesh(surface);
Vector3 rpos, rnorm;
if (surface_mesh->intersect_ray(xform_pos, xform_ray, rpos, rnorm)) {
Vector3 hitpos = gt.xform(rpos);
const real_t dist = world_pos.distance_to(hitpos);
if (dist < 0) {
continue;
}
if (dist < closest_dist) {
closest_surface = surface;
closest_dist = dist;
}
}
}
if (closest_surface == -1) {
return false;
}
if (spatial_editor->get_preview_material() != mesh_instance->get_surface_override_material(closest_surface)) {
spatial_editor->set_preview_material_surface(closest_surface);
spatial_editor->set_preview_reset_material(mesh_instance->get_surface_override_material(closest_surface));
mesh_instance->set_surface_override_material(closest_surface, spatial_editor->get_preview_material());
}
return true;
}
GeometryInstance3D *geometry_instance = Object::cast_to<GeometryInstance3D>(target_inst);
if (geometry_instance && spatial_editor->get_preview_material() != geometry_instance->get_material_override()) {
spatial_editor->set_preview_reset_material(geometry_instance->get_material_override());
geometry_instance->set_material_override(spatial_editor->get_preview_material());
return true;
}
return false;
}
void Node3DEditorViewport::_reset_preview_material() const {
ObjectID last_target = spatial_editor->get_preview_material_target();
if (last_target.is_null()) {
return;
}
Object *last_target_inst = ObjectDB::get_instance(last_target);
MeshInstance3D *mesh_instance = Object::cast_to<MeshInstance3D>(last_target_inst);
GeometryInstance3D *geometry_instance = Object::cast_to<GeometryInstance3D>(last_target_inst);
if (mesh_instance && spatial_editor->get_preview_material_surface() != -1) {
mesh_instance->set_surface_override_material(spatial_editor->get_preview_material_surface(), spatial_editor->get_preview_reset_material());
spatial_editor->set_preview_material_surface(-1);
} else if (geometry_instance) {
geometry_instance->set_material_override(spatial_editor->get_preview_reset_material());
}
}
void Node3DEditorViewport::_remove_preview_material() {
preview_material_label->hide();
preview_material_label_desc->hide();
spatial_editor->set_preview_material(Ref<Material>());
spatial_editor->set_preview_reset_material(Ref<Material>());
spatial_editor->set_preview_material_target(ObjectID());
spatial_editor->set_preview_material_surface(-1);
}
bool Node3DEditorViewport::_cyclical_dependency_exists(const String &p_target_scene_path, Node *p_desired_node) {
if (p_desired_node->get_scene_file_path() == p_target_scene_path) {
return true;
@ -3929,7 +4038,26 @@ bool Node3DEditorViewport::_create_instance(Node *parent, String &path, const Po
}
void Node3DEditorViewport::_perform_drop_data() {
_remove_preview();
if (spatial_editor->get_preview_material_target().is_valid()) {
GeometryInstance3D *geometry_instance = Object::cast_to<GeometryInstance3D>(ObjectDB::get_instance(spatial_editor->get_preview_material_target()));
MeshInstance3D *mesh_instance = Object::cast_to<MeshInstance3D>(ObjectDB::get_instance(spatial_editor->get_preview_material_target()));
if (mesh_instance && spatial_editor->get_preview_material_surface() != -1) {
editor_data->get_undo_redo().create_action(vformat(TTR("Set Surface %d Override Material"), spatial_editor->get_preview_material_surface()));
editor_data->get_undo_redo().add_do_method(geometry_instance, "set_surface_override_material", spatial_editor->get_preview_material_surface(), spatial_editor->get_preview_material());
editor_data->get_undo_redo().add_undo_method(geometry_instance, "set_surface_override_material", spatial_editor->get_preview_material_surface(), spatial_editor->get_preview_reset_material());
editor_data->get_undo_redo().commit_action();
} else if (geometry_instance) {
editor_data->get_undo_redo().create_action(TTR("Set Material Override"));
editor_data->get_undo_redo().add_do_method(geometry_instance, "set_material_override", spatial_editor->get_preview_material());
editor_data->get_undo_redo().add_undo_method(geometry_instance, "set_material_override", spatial_editor->get_preview_reset_material());
editor_data->get_undo_redo().commit_action();
}
_remove_preview_material();
return;
}
_remove_preview_node();
Vector<String> error_files;
@ -3967,7 +4095,7 @@ void Node3DEditorViewport::_perform_drop_data() {
bool Node3DEditorViewport::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
bool can_instantiate = false;
if (!preview_node->is_inside_tree()) {
if (!preview_node->is_inside_tree() && spatial_editor->get_preview_material().is_null()) {
Dictionary d = p_data;
if (d.has("type") && (String(d["type"]) == "files")) {
Vector<String> files = d["files"];
@ -3976,40 +4104,78 @@ bool Node3DEditorViewport::can_drop_data_fw(const Point2 &p_point, const Variant
ResourceLoader::get_recognized_extensions_for_type("PackedScene", &scene_extensions);
List<String> mesh_extensions;
ResourceLoader::get_recognized_extensions_for_type("Mesh", &mesh_extensions);
List<String> material_extensions;
ResourceLoader::get_recognized_extensions_for_type("Material", &material_extensions);
List<String> texture_extensions;
ResourceLoader::get_recognized_extensions_for_type("Texture", &texture_extensions);
for (int i = 0; i < files.size(); i++) {
// Check if dragged files with mesh or scene extension can be created at least once.
if (mesh_extensions.find(files[i].get_extension()) || scene_extensions.find(files[i].get_extension())) {
if (mesh_extensions.find(files[i].get_extension()) ||
scene_extensions.find(files[i].get_extension()) ||
material_extensions.find(files[i].get_extension()) ||
texture_extensions.find(files[i].get_extension())) {
Ref<Resource> res = ResourceLoader::load(files[i]);
if (res.is_null()) {
continue;
}
Ref<PackedScene> scn = res;
Ref<Material> mat = res;
Ref<Texture2D> tex = res;
if (scn.is_valid()) {
Node *instantiated_scene = scn->instantiate(PackedScene::GEN_EDIT_STATE_INSTANCE);
if (!instantiated_scene) {
continue;
}
memdelete(instantiated_scene);
} else if (mat.is_valid()) {
Ref<BaseMaterial3D> base_mat = res;
Ref<ShaderMaterial> shader_mat = res;
if (base_mat.is_null() && !shader_mat.is_null()) {
break;
}
spatial_editor->set_preview_material(mat);
break;
} else if (tex.is_valid()) {
Ref<StandardMaterial3D> new_mat = memnew(StandardMaterial3D);
new_mat->set_texture(BaseMaterial3D::TEXTURE_ALBEDO, tex);
spatial_editor->set_preview_material(new_mat);
break;
} else {
continue;
}
can_instantiate = true;
break;
}
}
if (can_instantiate) {
_create_preview(files);
_create_preview_node(files);
}
}
} else {
can_instantiate = true;
if (preview_node->is_inside_tree()) {
can_instantiate = true;
}
}
if (can_instantiate) {
Transform3D global_transform = Transform3D(Basis(), _get_instance_position(p_point));
preview_node->set_global_transform(global_transform);
return true;
}
return can_instantiate;
if (spatial_editor->get_preview_material().is_valid()) {
preview_material_label->show();
preview_material_label_desc->show();
ObjectID new_preview_material_target = _select_ray(p_point);
return _apply_preview_material(new_preview_material_target, p_point);
}
return false;
}
void Node3DEditorViewport::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
@ -4047,7 +4213,7 @@ void Node3DEditorViewport::drop_data_fw(const Point2 &p_point, const Variant &p_
} else {
accept->set_text(TTR("Cannot drag and drop into multiple selected nodes."));
accept->popup_centered();
_remove_preview();
_remove_preview_node();
return;
}
@ -4698,6 +4864,23 @@ Node3DEditorViewport::Node3DEditorViewport(Node3DEditor *p_spatial_editor, int p
zoom_limit_label->hide();
surface->add_child(zoom_limit_label);
preview_material_label = memnew(Label);
preview_material_label->set_anchors_and_offsets_preset(LayoutPreset::PRESET_BOTTOM_LEFT);
preview_material_label->set_offset(Side::SIDE_TOP, -70 * EDSCALE);
preview_material_label->set_text(TTR("Overriding material..."));
preview_material_label->add_theme_color_override("font_color", Color(1, 1, 1, 1));
preview_material_label->hide();
surface->add_child(preview_material_label);
preview_material_label_desc = memnew(Label);
preview_material_label_desc->set_anchors_and_offsets_preset(LayoutPreset::PRESET_BOTTOM_LEFT);
preview_material_label_desc->set_offset(Side::SIDE_TOP, -50 * EDSCALE);
preview_material_label_desc->set_text(TTR("Drag and drop to override the material of any geometry node.\nHold Ctrl when dropping to override a specific surface."));
preview_material_label_desc->add_theme_color_override("font_color", Color(0.8, 0.8, 0.8, 1));
preview_material_label_desc->add_theme_constant_override("line_spacing", 0);
preview_material_label_desc->hide();
surface->add_child(preview_material_label_desc);
frame_time_gradient = memnew(Gradient);
// The color is set when the theme changes.
frame_time_gradient->add_point(0.5, Color());
@ -8131,7 +8314,6 @@ void fragment() {
_preview_settings_changed();
}
}
Node3DEditor::~Node3DEditor() {
memdelete(preview_node);
}

27
editor/plugins/node_3d_editor_plugin.h
View file

@ -227,6 +227,9 @@ private:
Label *locked_label = nullptr;
Label *zoom_limit_label = nullptr;
Label *preview_material_label = nullptr;
Label *preview_material_label_desc = nullptr;
VBoxContainer *top_right_vbox = nullptr;
ViewportRotationControl *rotation_control = nullptr;
Gradient *frame_time_gradient = nullptr;
@ -244,7 +247,7 @@ private:
void _compute_edit(const Point2 &p_point);
void _clear_selected();
void _select_clicked(bool p_allow_locked);
ObjectID _select_ray(const Point2 &p_pos);
ObjectID _select_ray(const Point2 &p_pos) const;
void _find_items_at_pos(const Point2 &p_pos, Vector<_RayResult> &r_results, bool p_include_locked);
Vector3 _get_ray_pos(const Vector2 &p_pos) const;
Vector3 _get_ray(const Vector2 &p_pos) const;
@ -272,6 +275,7 @@ private:
float get_fov() const;
ObjectID clicked;
ObjectID material_target;
Vector<_RayResult> selection_results;
bool clicked_wants_append = false;
bool selection_in_progress = false;
@ -399,8 +403,11 @@ private:
Node *_sanitize_preview_node(Node *p_node) const;
void _create_preview(const Vector<String> &files) const;
void _remove_preview();
void _create_preview_node(const Vector<String> &files) const;
void _remove_preview_node();
bool _apply_preview_material(ObjectID p_target, const Point2 &p_point) const;
void _reset_preview_material() const;
void _remove_preview_material();
bool _cyclical_dependency_exists(const String &p_target_scene_path, Node *p_desired_node);
bool _create_instance(Node *parent, String &path, const Point2 &p_point);
void _perform_drop_data();
@ -593,6 +600,11 @@ private:
Node3D *preview_node = nullptr;
AABB preview_bounds;
Ref<Material> preview_material;
Ref<Material> preview_reset_material;
ObjectID preview_material_target;
int preview_material_surface = -1;
struct Gizmo {
bool visible = false;
real_t scale = 0;
@ -851,6 +863,15 @@ public:
void set_can_preview(Camera3D *p_preview);
void set_preview_material(Ref<Material> p_material) { preview_material = p_material; }
Ref<Material> get_preview_material() { return preview_material; }
void set_preview_reset_material(Ref<Material> p_material) { preview_reset_material = p_material; }
Ref<Material> get_preview_reset_material() const { return preview_reset_material; }
void set_preview_material_target(ObjectID p_object_id) { preview_material_target = p_object_id; }
ObjectID get_preview_material_target() const { return preview_material_target; }
void set_preview_material_surface(int p_surface) { preview_material_surface = p_surface; }
int get_preview_material_surface() const { return preview_material_surface; }
Node3DEditorViewport *get_editor_viewport(int p_idx) {
ERR_FAIL_INDEX_V(p_idx, static_cast<int>(VIEWPORTS_COUNT), nullptr);
return viewports[p_idx];

66
scene/resources/mesh.cpp
View file

@ -260,6 +260,64 @@ Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
return triangle_mesh;
}
Ref<TriangleMesh> Mesh::generate_surface_triangle_mesh(int p_surface) const {
ERR_FAIL_INDEX_V(p_surface, get_surface_count(), Ref<TriangleMesh>());
if (surface_triangle_meshes.size() != get_surface_count()) {
surface_triangle_meshes.resize(get_surface_count());
}
if (surface_triangle_meshes[p_surface].is_valid()) {
return surface_triangle_meshes[p_surface];
}
int facecount = 0;
if (surface_get_primitive_type(p_surface) != PRIMITIVE_TRIANGLES) {
return Ref<TriangleMesh>();
}
if (surface_get_format(p_surface) & ARRAY_FORMAT_INDEX) {
facecount += surface_get_array_index_len(p_surface);
} else {
facecount += surface_get_array_len(p_surface);
}
Vector<Vector3> faces;
faces.resize(facecount);
Vector3 *facesw = faces.ptrw();
Array a = surface_get_arrays(p_surface);
ERR_FAIL_COND_V(a.is_empty(), Ref<TriangleMesh>());
int vc = surface_get_array_len(p_surface);
Vector<Vector3> vertices = a[ARRAY_VERTEX];
const Vector3 *vr = vertices.ptr();
int widx = 0;
if (surface_get_format(p_surface) & ARRAY_FORMAT_INDEX) {
int ic = surface_get_array_index_len(p_surface);
Vector<int> indices = a[ARRAY_INDEX];
const int *ir = indices.ptr();
for (int j = 0; j < ic; j++) {
int index = ir[j];
facesw[widx++] = vr[index];
}
} else {
for (int j = 0; j < vc; j++) {
facesw[widx++] = vr[j];
}
}
Ref<TriangleMesh> triangle_mesh = Ref<TriangleMesh>(memnew(TriangleMesh));
triangle_mesh->create(faces);
surface_triangle_meshes.set(p_surface, triangle_mesh);
return triangle_mesh;
}
void Mesh::generate_debug_mesh_lines(Vector<Vector3> &r_lines) {
if (debug_lines.size() > 0) {
r_lines = debug_lines;
@ -320,6 +378,14 @@ Vector<Face3> Mesh::get_faces() const {
return Vector<Face3>();
}
Vector<Face3> Mesh::get_surface_faces(int p_surface) const {
Ref<TriangleMesh> tm = generate_surface_triangle_mesh(p_surface);
if (tm.is_valid()) {
return tm->get_faces();
}
return Vector<Face3>();
}
Ref<Shape3D> Mesh::create_convex_shape(bool p_clean, bool p_simplify) const {
if (p_simplify) {
ConvexDecompositionSettings settings;

3
scene/resources/mesh.h
View file

@ -42,6 +42,7 @@ class Mesh : public Resource {
GDCLASS(Mesh, Resource);
mutable Ref<TriangleMesh> triangle_mesh; //cached
mutable Vector<Ref<TriangleMesh>> surface_triangle_meshes; //cached
mutable Vector<Vector3> debug_lines;
Size2i lightmap_size_hint;
@ -161,7 +162,9 @@ public:
virtual AABB get_aabb() const;
Vector<Face3> get_faces() const;
Vector<Face3> get_surface_faces(int p_surface) const;
Ref<TriangleMesh> generate_triangle_mesh() const;
Ref<TriangleMesh> generate_surface_triangle_mesh(int p_surface) const;
void generate_debug_mesh_lines(Vector<Vector3> &r_lines);
void generate_debug_mesh_indices(Vector<Vector3> &r_points);