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editor_scene_importer_mmd_pmx.cpp
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/*************************************************************************/
/* editor_scene_importer_mmd_pmx.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "editor_scene_importer_mmd_pmx.h"
#include "thirdparty/ksy/mmd_pmx.h"
#include "editor/import/scene_importer_mesh_node_3d.h"
#include "scene/3d/mesh_instance_3d.h"
#include "scene/3d/node_3d.h"
#include "scene/3d/physics_body_3d.h"
#include "scene/animation/animation_player.h"
#include "scene/resources/animation.h"
#include "scene/resources/surface_tool.h"
#include <unistd.h>
#include <cstdint>
#include <fstream>
#include <string>
uint32_t EditorSceneImporterMMDPMX::get_import_flags() const {
return ImportFlags::IMPORT_SCENE;
}
void EditorSceneImporterMMDPMX::get_extensions(List<String> *r_extensions) const {
r_extensions->push_back("pmx");
}
Node *EditorSceneImporterMMDPMX::import_scene(const String &p_path,
uint32_t p_flags, int p_bake_fps,
List<String> *r_missing_deps,
Error *r_err) {
Ref<PackedSceneMMDPMX> importer;
importer.instantiate();
return importer->import_scene(p_path, p_flags, p_bake_fps, r_missing_deps, r_err, Ref<PMXMMDState>());
}
Ref<Animation> EditorSceneImporterMMDPMX::import_animation(const String &p_path,
uint32_t p_flags,
int p_bake_fps) {
return Ref<Animation>();
}
void PackedSceneMMDPMX::_bind_methods() {
ClassDB::bind_method(D_METHOD("pack_mmd_pmx", "path", "flags", "bake_fps", "state"),
&PackedSceneMMDPMX::pack_mmd_pmx, DEFVAL(0), DEFVAL(1000.0f), DEFVAL(Ref<PMXMMDState>()));
ClassDB::bind_method(D_METHOD("import_mmd_pmx_scene", "path", "flags", "bake_fps", "state"),
&PackedSceneMMDPMX::import_mmd_pmx_scene, DEFVAL(0), DEFVAL(1000.0f), DEFVAL(Ref<PMXMMDState>()));
}
Node *PackedSceneMMDPMX::import_mmd_pmx_scene(const String &p_path, uint32_t p_flags, float p_bake_fps, Ref<PMXMMDState> r_state) {
Error err = FAILED;
List<String> deps;
return import_scene(p_path, p_flags, p_bake_fps, &deps, &err, r_state);
}
Node *PackedSceneMMDPMX::import_scene(const String &p_path, uint32_t p_flags,
int p_bake_fps,
List<String> *r_missing_deps,
Error *r_err,
Ref<PMXMMDState> r_state) {
if (r_state == Ref<PMXMMDState>()) {
r_state.instantiate();
}
std::ifstream ifs(
ProjectSettings::get_singleton()->globalize_path(p_path).utf8().get_data(), std::ifstream::binary);
kaitai::kstream ks(&ifs);
mmd_pmx_t pmx = mmd_pmx_t(&ks);
Node3D *root = memnew(Node3D);
std::vector<std::unique_ptr<mmd_pmx_t::material_t> > *materials = pmx.materials();
struct MMDMaterialVertexCounts {
uint32_t start = 0;
uint32_t end = 0;
};
Vector<MMDMaterialVertexCounts> material_index_counts;
material_index_counts.resize(pmx.material_count());
for (uint32_t material_i = 0; material_i < pmx.material_count(); material_i++) {
if (material_i != 0) {
material_index_counts.write[material_i].start = material_index_counts[material_i - 1].end;
} else {
material_index_counts.write[material_i].start = 0;
}
uint32_t start = material_index_counts[material_i].start;
uint32_t count = materials->at(material_i)->face_vertex_count();
material_index_counts.write[material_i].end = start + count;
}
for (int32_t material_i = 0; material_i < material_index_counts.size(); material_i++) {
Ref<SurfaceTool> surface;
surface.instantiate();
surface->begin(Mesh::PRIMITIVE_TRIANGLES);
std::vector<std::unique_ptr<mmd_pmx_t::vertex_t> > *vertices = pmx.vertices();
for (uint32_t vertex_i = 0; vertex_i < pmx.vertex_count(); vertex_i++) {
real_t x = vertices->at(vertex_i)->normal()->x();
real_t y = vertices->at(vertex_i)->normal()->y();
real_t z = vertices->at(vertex_i)->normal()->z();
Vector3 normal = Vector3(x, y, z);
surface->set_normal(normal);
x = vertices->at(vertex_i)->uv()->x();
y = vertices->at(vertex_i)->uv()->y();
z = 0.0f;
Vector2 uv = Vector2(x, y);
surface->set_uv(uv);
x = vertices->at(vertex_i)->position()->x();
x *= mmd_unit_conversion;
y = vertices->at(vertex_i)->position()->y();
y *= mmd_unit_conversion;
z = vertices->at(vertex_i)->position()->z();
z *= mmd_unit_conversion;
Vector3 point = Vector3(x, y, z);
PackedInt32Array bones;
bones.push_back(0);
bones.push_back(0);
bones.push_back(0);
bones.push_back(0);
PackedFloat32Array weights;
weights.push_back(0.0f);
weights.push_back(0.0f);
weights.push_back(0.0f);
weights.push_back(0.0f);
if (!vertices->at(vertex_i)->_is_null_skin_weights()) {
mmd_pmx_t::bone_type_t bone_type = vertices->at(vertex_i)->type();
switch (bone_type) {
case mmd_pmx_t::BONE_TYPE_BDEF1: {
mmd_pmx_t::bdef1_weights_t *pmx_weights = (mmd_pmx_t::bdef1_weights_t *)vertices->at(vertex_i)->skin_weights();
int64_t bone_index = pmx_weights->bone_index()->value();
switch (pmx_weights->bone_index()->size()) {
case 1: {
if (bone_index != UINT8_MAX) {
bones.write[0] = bone_index;
weights.write[0] = 1.0f;
}
} break;
case 2: {
if (bone_index != UINT16_MAX) {
bones.write[0] = bone_index;
weights.write[0] = 1.0f;
}
} break;
case 4: {
if (bone_index != UINT32_MAX) {
bones.write[0] = bone_index;
weights.write[0] = 1.0f;
}
} break;
default:
break;
// nothing
}
} break;
case mmd_pmx_t::BONE_TYPE_BDEF2: {
mmd_pmx_t::bdef2_weights_t *pmx_weights = (mmd_pmx_t::bdef2_weights_t *)vertices->at(vertex_i)->skin_weights();
for (int32_t count = 0; count < 2; count++) {
int64_t bone_index = pmx_weights->bone_indices()->at(count)->value();
switch (pmx_weights->bone_indices()->at(count)->size()) {
case 1: {
if (bone_index != UINT8_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
case 2: {
if (bone_index != UINT16_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
case 4: {
if (bone_index != UINT32_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
default:
break;
// nothing
}
}
} break;
case mmd_pmx_t::BONE_TYPE_BDEF4: {
mmd_pmx_t::bdef4_weights_t *pmx_weights = (mmd_pmx_t::bdef4_weights_t *)vertices->at(vertex_i)->skin_weights();
for (int32_t count = 0; count < RS::ARRAY_WEIGHTS_SIZE; count++) {
switch (pmx_weights->bone_indices()->at(count)->size()) {
case 1: {
uint8_t bone_index = pmx_weights->bone_indices()->at(count)->value();
if (bone_index != UINT8_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
case 2: {
uint16_t bone_index = pmx_weights->bone_indices()->at(count)->value();
if (bone_index != UINT16_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
case 4: {
uint32_t bone_index = pmx_weights->bone_indices()->at(count)->value();
if (bone_index != UINT32_MAX) {
bones.write[count] = bone_index;
weights.write[count] = pmx_weights->weights()->at(count);
}
} break;
default:
break;
// nothing
}
}
} break;
case mmd_pmx_t::BONE_TYPE_SDEF: {
} break;
case mmd_pmx_t::BONE_TYPE_QDEF: {
} break;
default:
break;
// nothing
}
}
surface->set_bones(bones);
real_t renorm = weights[0] + weights[1] + weights[2] + weights[3];
if (renorm != 0.0 && renorm != 1.0) {
weights.write[0] /= renorm;
weights.write[1] /= renorm;
weights.write[2] /= renorm;
weights.write[3] /= renorm;
}
surface->set_weights(weights);
surface->add_vertex(point);
}
std::vector<std::unique_ptr<mmd_pmx_t::face_t> > *faces = pmx.faces();
for (uint32_t face_vertex_i = material_index_counts[material_i].start; face_vertex_i < material_index_counts[material_i].end;
face_vertex_i += 3) {
uint32_t face_i = face_vertex_i / 3;
uint32_t index = faces->at(face_i)->indices()->at(0)->value();
surface->add_index(index);
index = faces->at(face_i)->indices()->at(2)->value();
surface->add_index(index);
index = faces->at(face_i)->indices()->at(1)->value();
surface->add_index(index);
}
Array mesh_array = surface->commit_to_arrays();
surface->clear();
String material_name = pick_universal_or_common(materials->at(material_i)->english_name()->value(), materials->at(material_i)->name()->value());
Ref<StandardMaterial3D> material;
material.instantiate();
int64_t texture_size = materials->at(material_i)->texture_index()->size();
String texture_path;
int64_t texture_index = materials->at(material_i)->texture_index()->value();
switch (texture_size) {
case 1: {
if (texture_index != UINT8_MAX) {
std::string raw_texture_path = pmx.textures()->at(texture_index)->name()->value();
texture_path.parse_utf8(raw_texture_path.data());
}
} break;
case 2: {
if (texture_index != UINT16_MAX) {
std::string raw_texture_path = pmx.textures()->at(texture_index)->name()->value();
texture_path.parse_utf8(raw_texture_path.data());
}
} break;
case 4: {
if (texture_index != UINT32_MAX) {
std::string raw_texture_path = pmx.textures()->at(texture_index)->name()->value();
texture_path.parse_utf8(raw_texture_path.data());
}
} break;
default:
break;
}
if (!texture_path.is_empty()) {
texture_path = p_path.get_base_dir().plus_file(texture_path);
texture_path = texture_path.simplify_path();
Ref<Texture> base_color_tex = ResourceLoader::load(texture_path);
material->set_texture(StandardMaterial3D::TEXTURE_ALBEDO, base_color_tex);
}
mmd_pmx_t::color4_t *diffuse = materials->at(material_i)->diffuse();
material->set_albedo(Color(diffuse->r(), diffuse->g(), diffuse->b(), diffuse->a()));
EditorSceneImporterMeshNode3D *mesh_3d = memnew(EditorSceneImporterMeshNode3D);
Ref<EditorSceneImporterMesh> mesh;
mesh.instantiate();
String model_name = pick_universal_or_common(pmx.header()->english_model_name()->value(), pmx.header()->model_name()->value());
mesh_3d->set_name(material_name);
mesh->add_surface(Mesh::PRIMITIVE_TRIANGLES, mesh_array, Array(), Dictionary(), material, material_name);
root->add_child(mesh_3d);
mesh_3d->set_mesh(mesh);
mesh_3d->set_owner(root);
}
std::vector<std::unique_ptr<mmd_pmx_t::rigid_body_t> > *rigid_bodies = pmx.rigid_bodies();
for (uint32_t rigid_bodies_i = 0; rigid_bodies_i < pmx.rigid_body_count(); rigid_bodies_i++) {
RigidBody3D *rigid_3d = memnew(RigidBody3D);
String rigid_name = pick_universal_or_common(rigid_bodies->at(rigid_bodies_i)->english_name()->value(),
rigid_bodies->at(rigid_bodies_i)->name()->value());
rigid_3d->set_name(rigid_name);
root->add_child(rigid_3d);
rigid_3d->set_owner(root);
}
return root;
}
void PackedSceneMMDPMX::pack_mmd_pmx(String p_path, int32_t p_flags,
real_t p_bake_fps, Ref<PMXMMDState> r_state) {
Error err = FAILED;
List<String> deps;
Node *root = import_scene(p_path, p_flags, p_bake_fps, &deps, &err, r_state);
ERR_FAIL_COND(err != OK);
pack(root);
}
String PackedSceneMMDPMX::pick_universal_or_common(std::string p_universal, std::string p_common) {
String output_name;
if (p_universal.empty()) {
output_name.parse_utf8(p_common.data());
} else {
output_name.parse_utf8(p_universal.data());
}
return output_name;
}