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Fix gltf gen(WIP).

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This commit is contained in:
Syoyo Fujita 2016-11-23 01:42:51 +09:00
parent 8ffc4e400d
commit 814b3fce56
1 changed files with 110 additions and 94 deletions
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204
examples/alembic_to_gltf/abc2gltf.cc
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@ -792,12 +792,23 @@ static bool ConvertNodeToGLTF(picojson::object *out, const Node *node)
picojson::object json_node;
picojson::array json_xform;
picojson::array json_meshes;
for (size_t i = 0; i < 16; i++) {
json_xform.push_back(picojson::value(xform->xform[i]));
}
json_node["matrix"] = picojson::value(json_xform);
json_node["name"] = picojson::value(xform->name);
//json_xform["meshes"] = // TODO
if (xform->children.size() > 0) {
for (size_t i = 0; i < xform->children.size(); i++) {
if (dynamic_cast<const Mesh*>(xform->children[i])) {
json_meshes.push_back(picojson::value(xform->children[i]->name));
}
}
if (json_meshes.size() > 0) {
json_node["meshes"] = picojson::value(json_meshes);
}
}
picojson::array json_children;
if (xform->children.size() > 0) {
@ -1222,107 +1233,112 @@ static bool SaveSceneToGLTF(const std::string& output_filename,
root["assets"] = picojson::value(asset);
}
#if 0
{
picojson::object buffers;
{
std::string vertices_b64data = base64_encode(reinterpret_cast<unsigned char const*>(mesh.vertices.data()), mesh.vertices.size() * sizeof(float));
picojson::object buf;
// Mesh
picojson::object meshes;
std::map<std::string, const Mesh*>::const_iterator mesh_it(scene.mesh_map.begin());
for (; mesh_it != scene.mesh_map.end(); mesh_it++) {
const Mesh& mesh = *(mesh_it->second);
{
picojson::object buffers;
{
std::string vertices_b64data = base64_encode(reinterpret_cast<unsigned char const*>(mesh.vertices.data()), mesh.vertices.size() * sizeof(float));
picojson::object buf;
buf["type"] = picojson::value("arraybuffer");
buf["uri"] = picojson::value(
std::string("data:application/octet-stream;base64,") + vertices_b64data);
buf["byteLength"] =
picojson::value(static_cast<double>(mesh.vertices.size() * sizeof(float)));
buffers["vertices"] = picojson::value(buf);
}
{
std::string faces_b64data = base64_encode(reinterpret_cast<unsigned char const*>(mesh.faces.data()), mesh.faces.size() * sizeof(unsigned int));
picojson::object buf;
buf["type"] = picojson::value("arraybuffer");
buf["uri"] = picojson::value(
std::string("data:application/octet-stream;base64,") + faces_b64data);
buf["byteLength"] =
picojson::value(static_cast<double>(mesh.faces.size() * sizeof(unsigned int)));
buffers["indices"] = picojson::value(buf);
}
root["buffers"] = picojson::value(buffers);
}
{
picojson::object buffer_views;
{
picojson::object buffer_view_vertices;
buffer_view_vertices["buffer"] = picojson::value(std::string("vertices"));
buffer_view_vertices["byteLength"] = picojson::value(static_cast<double>(mesh.vertices.size() * sizeof(float)));
buffer_view_vertices["byteOffset"] = picojson::value(static_cast<double>(0));
buffer_view_vertices["target"] = picojson::value(static_cast<int64_t>(TINYGLTF_TARGET_ARRAY_BUFFER));
buffer_views["bufferView_vertices"] = picojson::value(buffer_view_vertices);
}
{
picojson::object buffer_view_indices;
buffer_view_indices["buffer"] = picojson::value(std::string("indices"));
buffer_view_indices["byteLength"] = picojson::value(static_cast<double>(mesh.faces.size() * sizeof(unsigned int)));
buffer_view_indices["byteOffset"] = picojson::value(static_cast<double>(0));
buffer_view_indices["target"] = picojson::value(static_cast<int64_t>(TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER));
buffer_views["bufferView_indices"] = picojson::value(buffer_view_indices);
}
root["bufferViews"] = picojson::value(buffer_views);
}
{
picojson::object attributes;
attributes["POSITION"] = picojson::value(std::string("accessor_vertices"));
buf["type"] = picojson::value("arraybuffer");
buf["uri"] = picojson::value(
std::string("data:application/octet-stream;base64,") + vertices_b64data);
buf["byteLength"] =
picojson::value(static_cast<double>(mesh.vertices.size() * sizeof(float)));
buffers["vertices"] = picojson::value(buf);
}
{
std::string faces_b64data = base64_encode(reinterpret_cast<unsigned char const*>(mesh.faces.data()), mesh.faces.size() * sizeof(unsigned int));
picojson::object buf;
picojson::object primitive;
primitive["attributes"] = picojson::value(attributes);
primitive["indices"] = picojson::value("accessor_indices");
primitive["material"] = picojson::value("material_1");
primitive["mode"] = picojson::value(static_cast<int64_t>(TINYGLTF_MODE_TRIANGLES));
buf["type"] = picojson::value("arraybuffer");
buf["uri"] = picojson::value(
std::string("data:application/octet-stream;base64,") + faces_b64data);
buf["byteLength"] =
picojson::value(static_cast<double>(mesh.faces.size() * sizeof(unsigned int)));
picojson::array primitive_array;
primitive_array.push_back(picojson::value(primitive));
picojson::object m;
m["primitives"] = picojson::value(primitive_array);
meshes[mesh.name] = picojson::value(m);
buffers["indices"] = picojson::value(buf);
}
root["buffers"] = picojson::value(buffers);
}
{
picojson::object buffer_views;
{
picojson::object buffer_view_vertices;
buffer_view_vertices["buffer"] = picojson::value(std::string("vertices"));
buffer_view_vertices["byteLength"] = picojson::value(static_cast<double>(mesh.vertices.size() * sizeof(float)));
buffer_view_vertices["byteOffset"] = picojson::value(static_cast<double>(0));
buffer_view_vertices["target"] = picojson::value(static_cast<int64_t>(TINYGLTF_TARGET_ARRAY_BUFFER));
buffer_views["bufferView_vertices"] = picojson::value(buffer_view_vertices);
}
{
picojson::object buffer_view_indices;
buffer_view_indices["buffer"] = picojson::value(std::string("indices"));
buffer_view_indices["byteLength"] = picojson::value(static_cast<double>(mesh.faces.size() * sizeof(unsigned int)));
buffer_view_indices["byteOffset"] = picojson::value(static_cast<double>(0));
buffer_view_indices["target"] = picojson::value(static_cast<int64_t>(TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER));
picojson::object accessors;
picojson::object accessor_vertices;
picojson::object accessor_indices;
accessor_vertices["bufferView"] = picojson::value(std::string("bufferView_vertices"));
accessor_vertices["byteOffset"] = picojson::value(static_cast<int64_t>(0));
accessor_vertices["byteStride"] = picojson::value(static_cast<double>(3 * sizeof(float)));
accessor_vertices["componentType"] = picojson::value(static_cast<int64_t>(TINYGLTF_COMPONENT_TYPE_FLOAT));
accessor_vertices["count"] = picojson::value(static_cast<int64_t>(mesh.vertices.size()));
accessor_vertices["type"] = picojson::value(std::string("VEC3"));
accessors["accessor_vertices"] = picojson::value(accessor_vertices);
buffer_views["bufferView_indices"] = picojson::value(buffer_view_indices);
accessor_indices["bufferView"] = picojson::value(std::string("bufferView_indices"));
accessor_indices["byteOffset"] = picojson::value(static_cast<int64_t>(0));
accessor_indices["componentType"] = picojson::value(static_cast<int64_t>(TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT));
accessor_indices["count"] = picojson::value(static_cast<int64_t>(mesh.faces.size()));
accessor_indices["type"] = picojson::value(std::string("SCALAR"));
accessors["accessor_indices"] = picojson::value(accessor_indices);
root["accessors"] = picojson::value(accessors);
}
root["bufferViews"] = picojson::value(buffer_views);
}
{
picojson::object attributes;
attributes["POSITION"] = picojson::value(std::string("accessor_vertices"));
picojson::object primitive;
primitive["attributes"] = picojson::value(attributes);
primitive["indices"] = picojson::value("accessor_indices");
primitive["material"] = picojson::value("material_1");
primitive["mode"] = picojson::value(static_cast<int64_t>(TINYGLTF_MODE_TRIANGLES));
picojson::array primitive_array;
primitive_array.push_back(picojson::value(primitive));
picojson::object m;
m["primitives"] = picojson::value(primitive_array);
picojson::object meshes;
meshes["mesh_1"] = picojson::value(m);
root["meshes"] = picojson::value(meshes);
}
{
picojson::object accessors;
picojson::object accessor_vertices;
picojson::object accessor_indices;
accessor_vertices["bufferView"] = picojson::value(std::string("bufferView_vertices"));
accessor_vertices["byteOffset"] = picojson::value(static_cast<int64_t>(0));
accessor_vertices["byteStride"] = picojson::value(static_cast<double>(3 * sizeof(float)));
accessor_vertices["componentType"] = picojson::value(static_cast<int64_t>(TINYGLTF_COMPONENT_TYPE_FLOAT));
accessor_vertices["count"] = picojson::value(static_cast<int64_t>(mesh.vertices.size()));
accessor_vertices["type"] = picojson::value(std::string("VEC3"));
accessors["accessor_vertices"] = picojson::value(accessor_vertices);
accessor_indices["bufferView"] = picojson::value(std::string("bufferView_indices"));
accessor_indices["byteOffset"] = picojson::value(static_cast<int64_t>(0));
accessor_indices["componentType"] = picojson::value(static_cast<int64_t>(TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT));
accessor_indices["count"] = picojson::value(static_cast<int64_t>(mesh.faces.size()));
accessor_indices["type"] = picojson::value(std::string("SCALAR"));
accessors["accessor_indices"] = picojson::value(accessor_indices);
root["accessors"] = picojson::value(accessors);
}
root["meshes"] = picojson::value(meshes);
{
// Use Default Material(Do not supply `material.technique`)
@ -1334,7 +1350,7 @@ static bool SaveSceneToGLTF(const std::string& output_filename,
root["materials"] = picojson::value(materials);
}
#endif
std::ofstream ifs(output_filename.c_str());
if (ifs.bad()) {
@ -1368,8 +1384,8 @@ static void FlattenCurves(Curves *flatten_curves, const Scene &scene)
}
#endif
// Flatten
void ConvertNodeToScene(Scene *scene, const Node *node)
// Flatten node tree.
static void ConvertNodeToScene(Scene *scene, const Node *node)
{
if (!node) return;