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godot/scene/resources/mesh_data_tool.cpp
Rémi Verschelde b5334d14f7
Update copyright statements to 2021 
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆
2021-01-01 20:19:21 +01:00

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/*************************************************************************/
/* mesh_data_tool.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 "mesh_data_tool.h"
void MeshDataTool::clear() {
vertices.clear();
edges.clear();
faces.clear();
material = Ref<Material>();
format = 0;
}
Error MeshDataTool::create_from_surface(const Ref<ArrayMesh> &p_mesh, int p_surface) {
ERR_FAIL_COND_V(p_mesh.is_null(), ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(p_mesh->surface_get_primitive_type(p_surface) != Mesh::PRIMITIVE_TRIANGLES, ERR_INVALID_PARAMETER);
Array arrays = p_mesh->surface_get_arrays(p_surface);
ERR_FAIL_COND_V(arrays.is_empty(), ERR_INVALID_PARAMETER);
Vector<Vector3> varray = arrays[Mesh::ARRAY_VERTEX];
int vcount = varray.size();
ERR_FAIL_COND_V(vcount == 0, ERR_INVALID_PARAMETER);
clear();
format = p_mesh->surface_get_format(p_surface);
material = p_mesh->surface_get_material(p_surface);
const Vector3 *vr = varray.ptr();
const Vector3 *nr = nullptr;
if (arrays[Mesh::ARRAY_NORMAL].get_type() != Variant::NIL) {
nr = arrays[Mesh::ARRAY_NORMAL].operator Vector<Vector3>().ptr();
}
const real_t *ta = nullptr;
if (arrays[Mesh::ARRAY_TANGENT].get_type() != Variant::NIL) {
ta = arrays[Mesh::ARRAY_TANGENT].operator Vector<real_t>().ptr();
}
const Vector2 *uv = nullptr;
if (arrays[Mesh::ARRAY_TEX_UV].get_type() != Variant::NIL) {
uv = arrays[Mesh::ARRAY_TEX_UV].operator Vector<Vector2>().ptr();
}
const Vector2 *uv2 = nullptr;
if (arrays[Mesh::ARRAY_TEX_UV2].get_type() != Variant::NIL) {
uv2 = arrays[Mesh::ARRAY_TEX_UV2].operator Vector<Vector2>().ptr();
}
const Color *col = nullptr;
if (arrays[Mesh::ARRAY_COLOR].get_type() != Variant::NIL) {
col = arrays[Mesh::ARRAY_COLOR].operator Vector<Color>().ptr();
}
const int *bo = nullptr;
if (arrays[Mesh::ARRAY_BONES].get_type() != Variant::NIL) {
bo = arrays[Mesh::ARRAY_BONES].operator Vector<int>().ptr();
}
const real_t *we = nullptr;
if (arrays[Mesh::ARRAY_WEIGHTS].get_type() != Variant::NIL) {
we = arrays[Mesh::ARRAY_WEIGHTS].operator Vector<real_t>().ptr();
}
vertices.resize(vcount);
for (int i = 0; i < vcount; i++) {
Vertex v;
v.vertex = vr[i];
if (nr) {
v.normal = nr[i];
}
if (ta) {
v.tangent = Plane(ta[i * 4 + 0], ta[i * 4 + 1], ta[i * 4 + 2], ta[i * 4 + 3]);
}
if (uv) {
v.uv = uv[i];
}
if (uv2) {
v.uv2 = uv2[i];
}
if (col) {
v.color = col[i];
}
if (we) {
v.weights.push_back(we[i * 4 + 0]);
v.weights.push_back(we[i * 4 + 1]);
v.weights.push_back(we[i * 4 + 2]);
v.weights.push_back(we[i * 4 + 3]);
}
if (bo) {
v.bones.push_back(bo[i * 4 + 0]);
v.bones.push_back(bo[i * 4 + 1]);
v.bones.push_back(bo[i * 4 + 2]);
v.bones.push_back(bo[i * 4 + 3]);
}
vertices.write[i] = v;
}
Vector<int> indices;
if (arrays[Mesh::ARRAY_INDEX].get_type() != Variant::NIL) {
indices = arrays[Mesh::ARRAY_INDEX];
} else {
//make code simpler
indices.resize(vcount);
int *iw = indices.ptrw();
for (int i = 0; i < vcount; i++) {
iw[i] = i;
}
}
int icount = indices.size();
const int *r = indices.ptr();
Map<Point2i, int> edge_indices;
for (int i = 0; i < icount; i += 3) {
Vertex *v[3] = { &vertices.write[r[i + 0]], &vertices.write[r[i + 1]], &vertices.write[r[i + 2]] };
int fidx = faces.size();
Face face;
for (int j = 0; j < 3; j++) {
face.v[j] = r[i + j];
Point2i edge(r[i + j], r[i + (j + 1) % 3]);
if (edge.x > edge.y) {
SWAP(edge.x, edge.y);
}
if (edge_indices.has(edge)) {
face.edges[j] = edge_indices[edge];
} else {
face.edges[j] = edge_indices.size();
edge_indices[edge] = face.edges[j];
Edge e;
e.vertex[0] = edge.x;
e.vertex[1] = edge.y;
edges.push_back(e);
v[j]->edges.push_back(face.edges[j]);
v[(j + 1) % 3]->edges.push_back(face.edges[j]);
}
edges.write[face.edges[j]].faces.push_back(fidx);
v[j]->faces.push_back(fidx);
}
faces.push_back(face);
}
return OK;
}
Error MeshDataTool::commit_to_surface(const Ref<ArrayMesh> &p_mesh) {
ERR_FAIL_COND_V(p_mesh.is_null(), ERR_INVALID_PARAMETER);
Array arr;
arr.resize(Mesh::ARRAY_MAX);
int vcount = vertices.size();
Vector<Vector3> v;
Vector<Vector3> n;
Vector<real_t> t;
Vector<Vector2> u;
Vector<Vector2> u2;
Vector<Color> c;
Vector<int> b;
Vector<real_t> w;
Vector<int> in;
{
v.resize(vcount);
Vector3 *vr = v.ptrw();
Vector3 *nr = nullptr;
if (format & Mesh::ARRAY_FORMAT_NORMAL) {
n.resize(vcount);
nr = n.ptrw();
}
real_t *ta = nullptr;
if (format & Mesh::ARRAY_FORMAT_TANGENT) {
t.resize(vcount * 4);
ta = t.ptrw();
}
Vector2 *uv = nullptr;
if (format & Mesh::ARRAY_FORMAT_TEX_UV) {
u.resize(vcount);
uv = u.ptrw();
}
Vector2 *uv2 = nullptr;
if (format & Mesh::ARRAY_FORMAT_TEX_UV2) {
u2.resize(vcount);
uv2 = u2.ptrw();
}
Color *col = nullptr;
if (format & Mesh::ARRAY_FORMAT_COLOR) {
c.resize(vcount);
col = c.ptrw();
}
int *bo = nullptr;
if (format & Mesh::ARRAY_FORMAT_BONES) {
b.resize(vcount * 4);
bo = b.ptrw();
}
real_t *we = nullptr;
if (format & Mesh::ARRAY_FORMAT_WEIGHTS) {
w.resize(vcount * 4);
we = w.ptrw();
}
for (int i = 0; i < vcount; i++) {
const Vertex &vtx = vertices[i];
vr[i] = vtx.vertex;
if (nr) {
nr[i] = vtx.normal;
}
if (ta) {
ta[i * 4 + 0] = vtx.tangent.normal.x;
ta[i * 4 + 1] = vtx.tangent.normal.y;
ta[i * 4 + 2] = vtx.tangent.normal.z;
ta[i * 4 + 3] = vtx.tangent.d;
}
if (uv) {
uv[i] = vtx.uv;
}
if (uv2) {
uv2[i] = vtx.uv2;
}
if (col) {
col[i] = vtx.color;
}
if (we) {
we[i * 4 + 0] = vtx.weights[0];
we[i * 4 + 1] = vtx.weights[1];
we[i * 4 + 2] = vtx.weights[2];
we[i * 4 + 3] = vtx.weights[3];
}
if (bo) {
bo[i * 4 + 0] = vtx.bones[0];
bo[i * 4 + 1] = vtx.bones[1];
bo[i * 4 + 2] = vtx.bones[2];
bo[i * 4 + 3] = vtx.bones[3];
}
}
int fc = faces.size();
in.resize(fc * 3);
int *iw = in.ptrw();
for (int i = 0; i < fc; i++) {
iw[i * 3 + 0] = faces[i].v[0];
iw[i * 3 + 1] = faces[i].v[1];
iw[i * 3 + 2] = faces[i].v[2];
}
}
arr[Mesh::ARRAY_VERTEX] = v;
arr[Mesh::ARRAY_INDEX] = in;
if (n.size()) {
arr[Mesh::ARRAY_NORMAL] = n;
}
if (c.size()) {
arr[Mesh::ARRAY_COLOR] = c;
}
if (u.size()) {
arr[Mesh::ARRAY_TEX_UV] = u;
}
if (u2.size()) {
arr[Mesh::ARRAY_TEX_UV2] = u2;
}
if (t.size()) {
arr[Mesh::ARRAY_TANGENT] = t;
}
if (b.size()) {
arr[Mesh::ARRAY_BONES] = b;
}
if (w.size()) {
arr[Mesh::ARRAY_WEIGHTS] = w;
}
Ref<ArrayMesh> ncmesh = p_mesh;
int sc = ncmesh->get_surface_count();
ncmesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, arr);
ncmesh->surface_set_material(sc, material);
return OK;
}
int MeshDataTool::get_format() const {
return format;
}
int MeshDataTool::get_vertex_count() const {
return vertices.size();
}
int MeshDataTool::get_edge_count() const {
return edges.size();
}
int MeshDataTool::get_face_count() const {
return faces.size();
}
Vector3 MeshDataTool::get_vertex(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector3());
return vertices[p_idx].vertex;
}
void MeshDataTool::set_vertex(int p_idx, const Vector3 &p_vertex) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].vertex = p_vertex;
}
Vector3 MeshDataTool::get_vertex_normal(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector3());
return vertices[p_idx].normal;
}
void MeshDataTool::set_vertex_normal(int p_idx, const Vector3 &p_normal) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].normal = p_normal;
format |= Mesh::ARRAY_FORMAT_NORMAL;
}
Plane MeshDataTool::get_vertex_tangent(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Plane());
return vertices[p_idx].tangent;
}
void MeshDataTool::set_vertex_tangent(int p_idx, const Plane &p_tangent) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].tangent = p_tangent;
format |= Mesh::ARRAY_FORMAT_TANGENT;
}
Vector2 MeshDataTool::get_vertex_uv(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector2());
return vertices[p_idx].uv;
}
void MeshDataTool::set_vertex_uv(int p_idx, const Vector2 &p_uv) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].uv = p_uv;
format |= Mesh::ARRAY_FORMAT_TEX_UV;
}
Vector2 MeshDataTool::get_vertex_uv2(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector2());
return vertices[p_idx].uv2;
}
void MeshDataTool::set_vertex_uv2(int p_idx, const Vector2 &p_uv2) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].uv2 = p_uv2;
format |= Mesh::ARRAY_FORMAT_TEX_UV2;
}
Color MeshDataTool::get_vertex_color(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Color());
return vertices[p_idx].color;
}
void MeshDataTool::set_vertex_color(int p_idx, const Color &p_color) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].color = p_color;
format |= Mesh::ARRAY_FORMAT_COLOR;
}
Vector<int> MeshDataTool::get_vertex_bones(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector<int>());
return vertices[p_idx].bones;
}
void MeshDataTool::set_vertex_bones(int p_idx, const Vector<int> &p_bones) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].bones = p_bones;
format |= Mesh::ARRAY_FORMAT_BONES;
}
Vector<float> MeshDataTool::get_vertex_weights(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector<float>());
return vertices[p_idx].weights;
}
void MeshDataTool::set_vertex_weights(int p_idx, const Vector<float> &p_weights) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].weights = p_weights;
format |= Mesh::ARRAY_FORMAT_WEIGHTS;
}
Variant MeshDataTool::get_vertex_meta(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Variant());
return vertices[p_idx].meta;
}
void MeshDataTool::set_vertex_meta(int p_idx, const Variant &p_meta) {
ERR_FAIL_INDEX(p_idx, vertices.size());
vertices.write[p_idx].meta = p_meta;
}
Vector<int> MeshDataTool::get_vertex_edges(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector<int>());
return vertices[p_idx].edges;
}
Vector<int> MeshDataTool::get_vertex_faces(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, vertices.size(), Vector<int>());
return vertices[p_idx].faces;
}
int MeshDataTool::get_edge_vertex(int p_edge, int p_vertex) const {
ERR_FAIL_INDEX_V(p_edge, edges.size(), -1);
ERR_FAIL_INDEX_V(p_vertex, 2, -1);
return edges[p_edge].vertex[p_vertex];
}
Vector<int> MeshDataTool::get_edge_faces(int p_edge) const {
ERR_FAIL_INDEX_V(p_edge, edges.size(), Vector<int>());
return edges[p_edge].faces;
}
Variant MeshDataTool::get_edge_meta(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, edges.size(), Variant());
return edges[p_idx].meta;
}
void MeshDataTool::set_edge_meta(int p_idx, const Variant &p_meta) {
ERR_FAIL_INDEX(p_idx, edges.size());
edges.write[p_idx].meta = p_meta;
}
int MeshDataTool::get_face_vertex(int p_face, int p_vertex) const {
ERR_FAIL_INDEX_V(p_face, faces.size(), -1);
ERR_FAIL_INDEX_V(p_vertex, 3, -1);
return faces[p_face].v[p_vertex];
}
int MeshDataTool::get_face_edge(int p_face, int p_vertex) const {
ERR_FAIL_INDEX_V(p_face, faces.size(), -1);
ERR_FAIL_INDEX_V(p_vertex, 3, -1);
return faces[p_face].edges[p_vertex];
}
Variant MeshDataTool::get_face_meta(int p_face) const {
ERR_FAIL_INDEX_V(p_face, faces.size(), Variant());
return faces[p_face].meta;
}
void MeshDataTool::set_face_meta(int p_face, const Variant &p_meta) {
ERR_FAIL_INDEX(p_face, faces.size());
faces.write[p_face].meta = p_meta;
}
Vector3 MeshDataTool::get_face_normal(int p_face) const {
ERR_FAIL_INDEX_V(p_face, faces.size(), Vector3());
Vector3 v0 = vertices[faces[p_face].v[0]].vertex;
Vector3 v1 = vertices[faces[p_face].v[1]].vertex;
Vector3 v2 = vertices[faces[p_face].v[2]].vertex;
return Plane(v0, v1, v2).normal;
}
Ref<Material> MeshDataTool::get_material() const {
return material;
}
void MeshDataTool::set_material(const Ref<Material> &p_material) {
material = p_material;
}
void MeshDataTool::_bind_methods() {
ClassDB::bind_method(D_METHOD("clear"), &MeshDataTool::clear);
ClassDB::bind_method(D_METHOD("create_from_surface", "mesh", "surface"), &MeshDataTool::create_from_surface);
ClassDB::bind_method(D_METHOD("commit_to_surface", "mesh"), &MeshDataTool::commit_to_surface);
ClassDB::bind_method(D_METHOD("get_format"), &MeshDataTool::get_format);
ClassDB::bind_method(D_METHOD("get_vertex_count"), &MeshDataTool::get_vertex_count);
ClassDB::bind_method(D_METHOD("get_edge_count"), &MeshDataTool::get_edge_count);
ClassDB::bind_method(D_METHOD("get_face_count"), &MeshDataTool::get_face_count);
ClassDB::bind_method(D_METHOD("set_vertex", "idx", "vertex"), &MeshDataTool::set_vertex);
ClassDB::bind_method(D_METHOD("get_vertex", "idx"), &MeshDataTool::get_vertex);
ClassDB::bind_method(D_METHOD("set_vertex_normal", "idx", "normal"), &MeshDataTool::set_vertex_normal);
ClassDB::bind_method(D_METHOD("get_vertex_normal", "idx"), &MeshDataTool::get_vertex_normal);
ClassDB::bind_method(D_METHOD("set_vertex_tangent", "idx", "tangent"), &MeshDataTool::set_vertex_tangent);
ClassDB::bind_method(D_METHOD("get_vertex_tangent", "idx"), &MeshDataTool::get_vertex_tangent);
ClassDB::bind_method(D_METHOD("set_vertex_uv", "idx", "uv"), &MeshDataTool::set_vertex_uv);
ClassDB::bind_method(D_METHOD("get_vertex_uv", "idx"), &MeshDataTool::get_vertex_uv);
ClassDB::bind_method(D_METHOD("set_vertex_uv2", "idx", "uv2"), &MeshDataTool::set_vertex_uv2);
ClassDB::bind_method(D_METHOD("get_vertex_uv2", "idx"), &MeshDataTool::get_vertex_uv2);
ClassDB::bind_method(D_METHOD("set_vertex_color", "idx", "color"), &MeshDataTool::set_vertex_color);
ClassDB::bind_method(D_METHOD("get_vertex_color", "idx"), &MeshDataTool::get_vertex_color);
ClassDB::bind_method(D_METHOD("set_vertex_bones", "idx", "bones"), &MeshDataTool::set_vertex_bones);
ClassDB::bind_method(D_METHOD("get_vertex_bones", "idx"), &MeshDataTool::get_vertex_bones);
ClassDB::bind_method(D_METHOD("set_vertex_weights", "idx", "weights"), &MeshDataTool::set_vertex_weights);
ClassDB::bind_method(D_METHOD("get_vertex_weights", "idx"), &MeshDataTool::get_vertex_weights);
ClassDB::bind_method(D_METHOD("set_vertex_meta", "idx", "meta"), &MeshDataTool::set_vertex_meta);
ClassDB::bind_method(D_METHOD("get_vertex_meta", "idx"), &MeshDataTool::get_vertex_meta);
ClassDB::bind_method(D_METHOD("get_vertex_edges", "idx"), &MeshDataTool::get_vertex_edges);
ClassDB::bind_method(D_METHOD("get_vertex_faces", "idx"), &MeshDataTool::get_vertex_faces);
ClassDB::bind_method(D_METHOD("get_edge_vertex", "idx", "vertex"), &MeshDataTool::get_edge_vertex);
ClassDB::bind_method(D_METHOD("get_edge_faces", "idx"), &MeshDataTool::get_edge_faces);
ClassDB::bind_method(D_METHOD("set_edge_meta", "idx", "meta"), &MeshDataTool::set_edge_meta);
ClassDB::bind_method(D_METHOD("get_edge_meta", "idx"), &MeshDataTool::get_edge_meta);
ClassDB::bind_method(D_METHOD("get_face_vertex", "idx", "vertex"), &MeshDataTool::get_face_vertex);
ClassDB::bind_method(D_METHOD("get_face_edge", "idx", "edge"), &MeshDataTool::get_face_edge);
ClassDB::bind_method(D_METHOD("set_face_meta", "idx", "meta"), &MeshDataTool::set_face_meta);
ClassDB::bind_method(D_METHOD("get_face_meta", "idx"), &MeshDataTool::get_face_meta);
ClassDB::bind_method(D_METHOD("get_face_normal", "idx"), &MeshDataTool::get_face_normal);
ClassDB::bind_method(D_METHOD("set_material", "material"), &MeshDataTool::set_material);
ClassDB::bind_method(D_METHOD("get_material"), &MeshDataTool::get_material);
}
MeshDataTool::MeshDataTool() {
clear();
}
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