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godot/scene/resources/mesh.cpp

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/*************************************************************************/
/* mesh.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* 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.h"
#include "scene/resources/concave_polygon_shape.h"
#include "scene/resources/convex_polygon_shape.h"
static const char*_array_name[]={
"vertex_array",
"normal_array",
"tangent_array",
"color_array",
"tex_uv_array",
"tex_uv2_array",
"bone_array",
"weights_array",
"index_array",
NULL
};
static const Mesh::ArrayType _array_types[]={
Mesh::ARRAY_VERTEX,
Mesh::ARRAY_NORMAL,
Mesh::ARRAY_TANGENT,
Mesh::ARRAY_COLOR,
Mesh::ARRAY_TEX_UV,
Mesh::ARRAY_TEX_UV2,
Mesh::ARRAY_BONES,
Mesh::ARRAY_WEIGHTS,
Mesh::ARRAY_INDEX
};
/* compatibility */
static const int _format_translate[]={
Mesh::ARRAY_FORMAT_VERTEX,
Mesh::ARRAY_FORMAT_NORMAL,
Mesh::ARRAY_FORMAT_TANGENT,
Mesh::ARRAY_FORMAT_COLOR,
Mesh::ARRAY_FORMAT_TEX_UV,
Mesh::ARRAY_FORMAT_TEX_UV2,
Mesh::ARRAY_FORMAT_BONES,
Mesh::ARRAY_FORMAT_WEIGHTS,
Mesh::ARRAY_FORMAT_INDEX,
};
bool Mesh::_set(const StringName& p_name, const Variant& p_value) {
String sname=p_name;
if (p_name=="morph_target/names") {
DVector<String> sk=p_value;
int sz = sk.size();
DVector<String>::Read r = sk.read();
for(int i=0;i<sz;i++)
add_morph_target(r[i]);
return true;
}
if (p_name=="morph_target/mode") {
set_morph_target_mode(MorphTargetMode(int(p_value)));
return true;
}
if (sname.begins_with("materials/")) {
int idx=sname.get_slice("/",1).to_int()-1;
surface_set_material(idx,p_value);
return true;
}
if (!sname.begins_with("surfaces"))
return false;
int idx=sname.get_slice("/",1).to_int();
String what=sname.get_slice("/",2);
if (idx==surfaces.size()) {
if (what=="custom") {
add_custom_surface(p_value);
return true;
}
//create
Dictionary d=p_value;
ERR_FAIL_COND_V(!d.has("primitive"),false);
ERR_FAIL_COND_V(!d.has("arrays"),false);
ERR_FAIL_COND_V(!d.has("morph_arrays"),false);
bool alphasort = d.has("alphasort") && bool(d["alphasort"]);
add_surface(PrimitiveType(int(d["primitive"])),d["arrays"],d["morph_arrays"],alphasort);
if (d.has("material")) {
surface_set_material(idx,d["material"]);
}
if (d.has("name")) {
surface_set_name(idx,d["name"]);
}
return true;
}
if (what=="custom_aabb") {
surface_set_custom_aabb(idx,p_value);
return true;
}
return false;
}
bool Mesh::_get(const StringName& p_name,Variant &r_ret) const {
String sname=p_name;
if (p_name=="morph_target/names") {
DVector<String> sk;
for(int i=0;i<morph_targets.size();i++)
sk.push_back(morph_targets[i]);
r_ret=sk;
return true;
} else if (p_name=="morph_target/mode") {
r_ret = get_morph_target_mode();
return true;
} else if (sname.begins_with("materials/")) {
int idx=sname.get_slice("/",1).to_int()-1;
r_ret=surface_get_material(idx);
return true;
} else if (!sname.begins_with("surfaces"))
return false;
int idx=sname.get_slice("/",1).to_int();
ERR_FAIL_INDEX_V(idx,surfaces.size(),false);
Dictionary d;
d["primitive"]=surface_get_primitive_type(idx);
d["arrays"]=surface_get_arrays(idx);
d["morph_arrays"]=surface_get_morph_arrays(idx);
d["alphasort"]=surface_is_alpha_sorting_enabled(idx);
Ref<Material> m = surface_get_material(idx);
if (m.is_valid())
d["material"]=m;
String n = surface_get_name(idx);
if (n!="")
d["name"]=n;
r_ret=d;
return true;
}
void Mesh::_get_property_list( List<PropertyInfo> *p_list) const {
if (morph_targets.size()) {
p_list->push_back(PropertyInfo(Variant::STRING_ARRAY,"morph_target/names",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR));
p_list->push_back(PropertyInfo(Variant::INT,"morph_target/mode",PROPERTY_HINT_ENUM,"Normalized,Relative"));
}
for (int i=0;i<surfaces.size();i++) {
p_list->push_back( PropertyInfo( Variant::DICTIONARY,"surfaces/"+itos(i), PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR ) );
p_list->push_back( PropertyInfo( Variant::OBJECT,"materials/"+itos(i+1), PROPERTY_HINT_RESOURCE_TYPE,"Material",PROPERTY_USAGE_EDITOR ) );
}
}
void Mesh::_recompute_aabb() {
// regenerate AABB
aabb=AABB();
for (int i=0;i<surfaces.size();i++) {
if (i==0)
aabb=surfaces[i].aabb;
else
aabb.merge_with(surfaces[i].aabb);
}
}
void Mesh::add_surface(PrimitiveType p_primitive,const Array& p_arrays,const Array& p_blend_shapes,bool p_alphasort) {
ERR_FAIL_COND(p_arrays.size()!=ARRAY_MAX);
Surface s;
VisualServer::get_singleton()->mesh_add_surface(mesh,(VisualServer::PrimitiveType)p_primitive, p_arrays,p_blend_shapes,p_alphasort);
surfaces.push_back(s);
/* make aABB? */ {
DVector<Vector3> vertices=p_arrays[ARRAY_VERTEX];
int len=vertices.size();
ERR_FAIL_COND(len==0);
DVector<Vector3>::Read r=vertices.read();
const Vector3 *vtx=r.ptr();
// check AABB
AABB aabb;
for (int i=0;i<len;i++) {
if (i==0)
aabb.pos=vtx[i];
else
aabb.expand_to(vtx[i]);
}
surfaces[surfaces.size()-1].aabb=aabb;
surfaces[surfaces.size()-1].alphasort=p_alphasort;
_recompute_aabb();
}
triangle_mesh=Ref<TriangleMesh>();
_change_notify();
}
Array Mesh::surface_get_arrays(int p_surface) const {
ERR_FAIL_INDEX_V(p_surface,surfaces.size(),Array());
return VisualServer::get_singleton()->mesh_get_surface_arrays(mesh,p_surface);
}
Array Mesh::surface_get_morph_arrays(int p_surface) const {
ERR_FAIL_INDEX_V(p_surface,surfaces.size(),Array());
return VisualServer::get_singleton()->mesh_get_surface_morph_arrays(mesh,p_surface);
}
void Mesh::add_custom_surface(const Variant& p_data) {
Surface s;
s.aabb=AABB();
VisualServer::get_singleton()->mesh_add_custom_surface(mesh,p_data);
surfaces.push_back(s);
triangle_mesh=Ref<TriangleMesh>();
_change_notify();
}
int Mesh::get_surface_count() const {
return surfaces.size();
}
void Mesh::add_morph_target(const StringName& p_name) {
if (surfaces.size()) {
ERR_EXPLAIN("Can't add a shape key count if surfaces are already created.");
ERR_FAIL_COND(surfaces.size());
}
StringName name=p_name;
if (morph_targets.find(name)!=-1 ) {
int count=2;
do {
name = String(p_name) + " " + itos(count);
count++;
} while(morph_targets.find(name)!=-1);
}
morph_targets.push_back(name);
VS::get_singleton()->mesh_set_morph_target_count(mesh,morph_targets.size());
}
int Mesh::get_morph_target_count() const {
return morph_targets.size();
}
StringName Mesh::get_morph_target_name(int p_index) const {
ERR_FAIL_INDEX_V( p_index, morph_targets.size(),StringName() );
return morph_targets[p_index];
}
void Mesh::clear_morph_targets() {
if (surfaces.size()) {
ERR_EXPLAIN("Can't set shape key count if surfaces are already created.");
ERR_FAIL_COND(surfaces.size());
}
morph_targets.clear();
}
void Mesh::set_morph_target_mode(MorphTargetMode p_mode) {
morph_target_mode=p_mode;
VS::get_singleton()->mesh_set_morph_target_mode(mesh,(VS::MorphTargetMode)p_mode);
}
Mesh::MorphTargetMode Mesh::get_morph_target_mode() const {
return morph_target_mode;
}
void Mesh::surface_remove(int p_idx) {
ERR_FAIL_INDEX(p_idx, surfaces.size() );
VisualServer::get_singleton()->mesh_remove_surface(mesh,p_idx);
surfaces.remove(p_idx);
triangle_mesh=Ref<TriangleMesh>();
_recompute_aabb();
_change_notify();
}
int Mesh::surface_get_array_len(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), -1 );
return VisualServer::get_singleton()->mesh_surface_get_array_len( mesh, p_idx );
}
int Mesh::surface_get_array_index_len(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), -1 );
return VisualServer::get_singleton()->mesh_surface_get_array_index_len( mesh, p_idx );
}
uint32_t Mesh::surface_get_format(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), 0 );
return VisualServer::get_singleton()->mesh_surface_get_format( mesh, p_idx );
}
Mesh::PrimitiveType Mesh::surface_get_primitive_type(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), PRIMITIVE_LINES );
return (PrimitiveType)VisualServer::get_singleton()->mesh_surface_get_primitive_type( mesh, p_idx );
}
bool Mesh::surface_is_alpha_sorting_enabled(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), 0 );
return surfaces[p_idx].alphasort;
}
void Mesh::surface_set_material(int p_idx, const Ref<Material>& p_material) {
ERR_FAIL_INDEX( p_idx, surfaces.size() );
if (surfaces[p_idx].material==p_material)
return;
surfaces[p_idx].material=p_material;
VisualServer::get_singleton()->mesh_surface_set_material(mesh, p_idx, p_material.is_null()?RID():p_material->get_rid());
_change_notify("material");
}
void Mesh::surface_set_name(int p_idx, const String& p_name) {
ERR_FAIL_INDEX( p_idx, surfaces.size() );
surfaces[p_idx].name=p_name;
}
String Mesh::surface_get_name(int p_idx) const{
ERR_FAIL_INDEX_V( p_idx, surfaces.size(),String() );
return surfaces[p_idx].name;
}
void Mesh::surface_set_custom_aabb(int p_idx,const AABB& p_aabb) {
ERR_FAIL_INDEX( p_idx, surfaces.size() );
surfaces[p_idx].aabb=p_aabb;
// set custom aabb too?
}
Ref<Material> Mesh::surface_get_material(int p_idx) const {
ERR_FAIL_INDEX_V( p_idx, surfaces.size(), Ref<Material>() );
return surfaces[p_idx].material;
}
void Mesh::add_surface_from_mesh_data(const Geometry::MeshData& p_mesh_data) {
VisualServer::get_singleton()->mesh_add_surface_from_mesh_data( mesh, p_mesh_data );
AABB aabb;
for (int i=0;i<p_mesh_data.vertices.size();i++) {
if (i==0)
aabb.pos=p_mesh_data.vertices[i];
else
aabb.expand_to(p_mesh_data.vertices[i]);
}
Surface s;
s.aabb=aabb;
if (surfaces.size()==0)
aabb=s.aabb;
else
aabb.merge_with(s.aabb);
triangle_mesh=Ref<TriangleMesh>();
surfaces.push_back(s);
_change_notify();
}
RID Mesh::get_rid() const {
return mesh;
}
AABB Mesh::get_aabb() const {
return aabb;
}
DVector<Face3> Mesh::get_faces() const {
Ref<TriangleMesh> tm = generate_triangle_mesh();
if (tm.is_valid())
return tm->get_faces();
return DVector<Face3>();
/*
for (int i=0;i<surfaces.size();i++) {
if (VisualServer::get_singleton()->mesh_surface_get_primitive_type( mesh, i ) != VisualServer::PRIMITIVE_TRIANGLES )
continue;
DVector<int> indices;
DVector<Vector3> vertices;
vertices=VisualServer::get_singleton()->mesh_surface_get_array(mesh, i,VisualServer::ARRAY_VERTEX);
int len=VisualServer::get_singleton()->mesh_surface_get_array_index_len(mesh, i);
bool has_indices;
if (len>0) {
indices=VisualServer::get_singleton()->mesh_surface_get_array(mesh, i,VisualServer::ARRAY_INDEX);
has_indices=true;
} else {
len=vertices.size();
has_indices=false;
}
if (len<=0)
continue;
DVector<int>::Read indicesr = indices.read();
const int *indicesptr = indicesr.ptr();
DVector<Vector3>::Read verticesr = vertices.read();
const Vector3 *verticesptr = verticesr.ptr();
int old_faces=faces.size();
int new_faces=old_faces+(len/3);
faces.resize(new_faces);
DVector<Face3>::Write facesw = faces.write();
Face3 *facesptr=facesw.ptr();
for (int i=0;i<len/3;i++) {
Face3 face;
for (int j=0;j<3;j++) {
int idx=i*3+j;
face.vertex[j] = has_indices ? verticesptr[ indicesptr[ idx ] ] : verticesptr[idx];
}
facesptr[i+old_faces]=face;
}
}
*/
}
Ref<Shape> Mesh::create_convex_shape() const {
DVector<Vector3> vertices;
for(int i=0;i<get_surface_count();i++) {
Array a = surface_get_arrays(i);
DVector<Vector3> v=a[ARRAY_VERTEX];
vertices.append_array(v);
}
Ref<ConvexPolygonShape> shape = memnew( ConvexPolygonShape );
shape->set_points(vertices);
return shape;
}
Ref<Shape> Mesh::create_trimesh_shape() const {
DVector<Face3> faces = get_faces();
if (faces.size()==0)
return Ref<Shape>();
DVector<Vector3> face_points;
face_points.resize( faces.size()*3 );
for (int i=0;i<face_points.size();i++) {
Face3 f = faces.get( i/3 );
face_points.set(i, f.vertex[i%3] );
}
Ref<ConcavePolygonShape> shape = memnew( ConcavePolygonShape );
shape->set_faces(face_points);
return shape;
}
void Mesh::center_geometry() {
/*
Vector3 ofs = aabb.pos+aabb.size*0.5;
for(int i=0;i<get_surface_count();i++) {
DVector<Vector3> geom = surface_get_array(i,ARRAY_VERTEX);
int gc =geom.size();
DVector<Vector3>::Write w = geom.write();
surfaces[i].aabb.pos-=ofs;
for(int i=0;i<gc;i++) {
w[i]-=ofs;
}
w = DVector<Vector3>::Write();
surface_set_array(i,ARRAY_VERTEX,geom);
}
aabb.pos-=ofs;
*/
}
Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
if (triangle_mesh.is_valid())
return triangle_mesh;
int facecount=0;
for(int i=0;i<get_surface_count();i++) {
if (surface_get_primitive_type(i)!=PRIMITIVE_TRIANGLES)
continue;
if (surface_get_format(i)&ARRAY_FORMAT_INDEX) {
facecount+=surface_get_array_index_len(i);
} else {
facecount+=surface_get_array_len(i);
}
}
if (facecount==0 || (facecount%3)!=0)
return triangle_mesh;
DVector<Vector3> faces;
faces.resize(facecount);
DVector<Vector3>::Write facesw=faces.write();
int widx=0;
for(int i=0;i<get_surface_count();i++) {
if (surface_get_primitive_type(i)!=PRIMITIVE_TRIANGLES)
continue;
Array a = surface_get_arrays(i);
int vc = surface_get_array_len(i);
DVector<Vector3> vertices = a[ARRAY_VERTEX];
DVector<Vector3>::Read vr=vertices.read();
if (surface_get_format(i)&ARRAY_FORMAT_INDEX) {
int ic=surface_get_array_index_len(i);
DVector<int> indices = a[ARRAY_INDEX];
DVector<int>::Read ir = indices.read();
for(int i=0;i<ic;i++)
facesw[widx++]=vr[ ir[i] ];
} else {
for(int i=0;i<vc;i++)
facesw[widx++]=vr[ i ];
}
}
facesw=DVector<Vector3>::Write();
triangle_mesh = Ref<TriangleMesh>( memnew( TriangleMesh ));
triangle_mesh->create(faces);
return triangle_mesh;
}
void Mesh::_bind_methods() {
ObjectTypeDB::bind_method(_MD("add_morph_target","name"),&Mesh::add_morph_target);
ObjectTypeDB::bind_method(_MD("get_morph_target_count"),&Mesh::get_morph_target_count);
ObjectTypeDB::bind_method(_MD("get_morph_target_name","index"),&Mesh::get_morph_target_name);
ObjectTypeDB::bind_method(_MD("clear_morph_targets"),&Mesh::clear_morph_targets);
ObjectTypeDB::bind_method(_MD("set_morph_target_mode","mode"),&Mesh::set_morph_target_mode);
ObjectTypeDB::bind_method(_MD("get_morph_target_mode"),&Mesh::get_morph_target_mode);
ObjectTypeDB::bind_method(_MD("add_surface","primitive","arrays","morph_arrays"),&Mesh::add_surface,DEFVAL(Array()));
ObjectTypeDB::bind_method(_MD("get_surface_count"),&Mesh::get_surface_count);
ObjectTypeDB::bind_method(_MD("surface_remove","surf_idx"),&Mesh::surface_remove);
ObjectTypeDB::bind_method(_MD("surface_get_array_len","surf_idx"),&Mesh::surface_get_array_len);
ObjectTypeDB::bind_method(_MD("surface_get_array_index_len","surf_idx"),&Mesh::surface_get_array_index_len);
ObjectTypeDB::bind_method(_MD("surface_get_format","surf_idx"),&Mesh::surface_get_format);
ObjectTypeDB::bind_method(_MD("surface_get_primitive_type","surf_idx"),&Mesh::surface_get_primitive_type);
ObjectTypeDB::bind_method(_MD("surface_set_material","surf_idx","material:Material"),&Mesh::surface_set_material);
ObjectTypeDB::bind_method(_MD("surface_get_material:Material","surf_idx"),&Mesh::surface_get_material);
ObjectTypeDB::bind_method(_MD("surface_set_name","surf_idx","name"),&Mesh::surface_set_name);
ObjectTypeDB::bind_method(_MD("surface_get_name","surf_idx"),&Mesh::surface_get_name);
ObjectTypeDB::bind_method(_MD("center_geometry"),&Mesh::center_geometry);
ObjectTypeDB::set_method_flags(get_type_static(),_SCS("center_geometry"),METHOD_FLAGS_DEFAULT|METHOD_FLAG_EDITOR);
BIND_CONSTANT( NO_INDEX_ARRAY );
BIND_CONSTANT( ARRAY_WEIGHTS_SIZE );
BIND_CONSTANT( ARRAY_VERTEX );
BIND_CONSTANT( ARRAY_NORMAL );
BIND_CONSTANT( ARRAY_TANGENT );
BIND_CONSTANT( ARRAY_COLOR );
BIND_CONSTANT( ARRAY_TEX_UV );
BIND_CONSTANT( ARRAY_TEX_UV2 );
BIND_CONSTANT( ARRAY_BONES );
BIND_CONSTANT( ARRAY_WEIGHTS );
BIND_CONSTANT( ARRAY_INDEX );
BIND_CONSTANT( ARRAY_FORMAT_VERTEX );
BIND_CONSTANT( ARRAY_FORMAT_NORMAL );
BIND_CONSTANT( ARRAY_FORMAT_TANGENT );
BIND_CONSTANT( ARRAY_FORMAT_COLOR );
BIND_CONSTANT( ARRAY_FORMAT_TEX_UV );
BIND_CONSTANT( ARRAY_FORMAT_TEX_UV2 );
BIND_CONSTANT( ARRAY_FORMAT_BONES );
BIND_CONSTANT( ARRAY_FORMAT_WEIGHTS );
BIND_CONSTANT( ARRAY_FORMAT_INDEX );
BIND_CONSTANT( PRIMITIVE_POINTS );
BIND_CONSTANT( PRIMITIVE_LINES );
BIND_CONSTANT( PRIMITIVE_LINE_STRIP );
BIND_CONSTANT( PRIMITIVE_LINE_LOOP );
BIND_CONSTANT( PRIMITIVE_TRIANGLES );
BIND_CONSTANT( PRIMITIVE_TRIANGLE_STRIP );
BIND_CONSTANT( PRIMITIVE_TRIANGLE_FAN );
}
Mesh::Mesh() {
mesh=VisualServer::get_singleton()->mesh_create();
morph_target_mode=MORPH_MODE_RELATIVE;
}
Mesh::~Mesh() {
VisualServer::get_singleton()->free(mesh);
}
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