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godot/scene/resources/mesh_data_tool.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

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/**************************************************************************/
/* mesh_data_tool.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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);
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();
ERR_FAIL_COND_V(icount == 0, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(icount % 3, ERR_INVALID_PARAMETER);
for (int i = 0; i < icount; i++) {
ERR_FAIL_INDEX_V(r[i], vcount, 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 float *we = nullptr;
if (arrays[Mesh::ARRAY_WEIGHTS].get_type() != Variant::NIL) {
we = arrays[Mesh::ARRAY_WEIGHTS].operator Vector<float>().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;
}
HashMap<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());
ERR_FAIL_COND(p_bones.size() != 4);
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());
ERR_FAIL_COND(p_weights.size() != 4);
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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