blob: 139e9568ac6c99c36b9caaba1d500e870e21e0da [file] [log] [blame] [edit]
#define TINYGLTF_IMPLEMENTATION
#define STB_IMAGE_IMPLEMENTATION
#include "tiny_gltf.h"
#include <cstdio>
#include <fstream>
#include <iostream>
static std::string GetFilePathExtension(const std::string &FileName) {
if (FileName.find_last_of(".") != std::string::npos)
return FileName.substr(FileName.find_last_of(".") + 1);
return "";
}
static std::string PrintMode(int mode) {
if (mode == TINYGLTF_MODE_POINTS) {
return "POINTS";
} else if (mode == TINYGLTF_MODE_LINE) {
return "LINE";
} else if (mode == TINYGLTF_MODE_LINE_LOOP) {
return "LINE_LOOP";
} else if (mode == TINYGLTF_MODE_TRIANGLES) {
return "TRIANGLES";
} else if (mode == TINYGLTF_MODE_TRIANGLE_FAN) {
return "TRIANGLE_FAN";
} else if (mode == TINYGLTF_MODE_TRIANGLE_STRIP) {
return "TRIANGLE_STRIP";
}
return "**UNKNOWN**";
}
static std::string PrintTarget(int target) {
if (target == 34962) {
return "GL_ARRAY_BUFFER";
} else if (target == 34963) {
return "GL_ELEMENT_ARRAY_BUFFER";
} else {
return "**UNKNOWN**";
}
}
static std::string PrintType(int ty) {
if (ty == TINYGLTF_TYPE_SCALAR) {
return "SCALAR";
} else if (ty == TINYGLTF_TYPE_VECTOR) {
return "VECTOR";
} else if (ty == TINYGLTF_TYPE_VEC2) {
return "VEC2";
} else if (ty == TINYGLTF_TYPE_VEC3) {
return "VEC3";
} else if (ty == TINYGLTF_TYPE_VEC4) {
return "VEC4";
} else if (ty == TINYGLTF_TYPE_MATRIX) {
return "MATRIX";
} else if (ty == TINYGLTF_TYPE_MAT2) {
return "MAT2";
} else if (ty == TINYGLTF_TYPE_MAT3) {
return "MAT3";
} else if (ty == TINYGLTF_TYPE_MAT4) {
return "MAT4";
}
return "**UNKNOWN**";
}
static std::string PrintComponentType(int ty) {
if (ty == TINYGLTF_COMPONENT_TYPE_BYTE) {
return "BYTE";
} else if (ty == TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE) {
return "UNSIGNED_BYTE";
} else if (ty == TINYGLTF_COMPONENT_TYPE_SHORT) {
return "SHORT";
} else if (ty == TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT) {
return "UNSIGNED_SHORT";
} else if (ty == TINYGLTF_COMPONENT_TYPE_INT) {
return "INT";
} else if (ty == TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT) {
return "UNSIGNED_INT";
} else if (ty == TINYGLTF_COMPONENT_TYPE_FLOAT) {
return "FLOAT";
} else if (ty == TINYGLTF_COMPONENT_TYPE_DOUBLE) {
return "DOUBLE";
}
return "**UNKNOWN**";
}
#if 0
static std::string PrintParameterType(int ty) {
if (ty == TINYGLTF_PARAMETER_TYPE_BYTE) {
return "BYTE";
} else if (ty == TINYGLTF_PARAMETER_TYPE_UNSIGNED_BYTE) {
return "UNSIGNED_BYTE";
} else if (ty == TINYGLTF_PARAMETER_TYPE_SHORT) {
return "SHORT";
} else if (ty == TINYGLTF_PARAMETER_TYPE_UNSIGNED_SHORT) {
return "UNSIGNED_SHORT";
} else if (ty == TINYGLTF_PARAMETER_TYPE_INT) {
return "INT";
} else if (ty == TINYGLTF_PARAMETER_TYPE_UNSIGNED_INT) {
return "UNSIGNED_INT";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT) {
return "FLOAT";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_VEC2) {
return "FLOAT_VEC2";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_VEC3) {
return "FLOAT_VEC3";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_VEC4) {
return "FLOAT_VEC4";
} else if (ty == TINYGLTF_PARAMETER_TYPE_INT_VEC2) {
return "INT_VEC2";
} else if (ty == TINYGLTF_PARAMETER_TYPE_INT_VEC3) {
return "INT_VEC3";
} else if (ty == TINYGLTF_PARAMETER_TYPE_INT_VEC4) {
return "INT_VEC4";
} else if (ty == TINYGLTF_PARAMETER_TYPE_BOOL) {
return "BOOL";
} else if (ty == TINYGLTF_PARAMETER_TYPE_BOOL_VEC2) {
return "BOOL_VEC2";
} else if (ty == TINYGLTF_PARAMETER_TYPE_BOOL_VEC3) {
return "BOOL_VEC3";
} else if (ty == TINYGLTF_PARAMETER_TYPE_BOOL_VEC4) {
return "BOOL_VEC4";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_MAT2) {
return "FLOAT_MAT2";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_MAT3) {
return "FLOAT_MAT3";
} else if (ty == TINYGLTF_PARAMETER_TYPE_FLOAT_MAT4) {
return "FLOAT_MAT4";
} else if (ty == TINYGLTF_PARAMETER_TYPE_SAMPLER_2D) {
return "SAMPLER_2D";
}
return "**UNKNOWN**";
}
#endif
static std::string PrintWrapMode(int mode) {
if (mode == TINYGLTF_TEXTURE_WRAP_REPEAT) {
return "REPEAT";
} else if (mode == TINYGLTF_TEXTURE_WRAP_CLAMP_TO_EDGE) {
return "CLAMP_TO_EDGE";
} else if (mode == TINYGLTF_TEXTURE_WRAP_MIRRORED_REPEAT) {
return "MIRRORED_REPEAT";
}
return "**UNKNOWN**";
}
static std::string PrintFilterMode(int mode) {
if (mode == TINYGLTF_TEXTURE_FILTER_NEAREST) {
return "NEAREST";
} else if (mode == TINYGLTF_TEXTURE_FILTER_LINEAR) {
return "LINEAR";
} else if (mode == TINYGLTF_TEXTURE_FILTER_NEAREST_MIPMAP_NEAREST) {
return "NEAREST_MIPMAP_NEAREST";
} else if (mode == TINYGLTF_TEXTURE_FILTER_NEAREST_MIPMAP_LINEAR) {
return "NEAREST_MIPMAP_LINEAR";
} else if (mode == TINYGLTF_TEXTURE_FILTER_LINEAR_MIPMAP_NEAREST) {
return "LINEAR_MIPMAP_NEAREST";
} else if (mode == TINYGLTF_TEXTURE_FILTER_LINEAR_MIPMAP_LINEAR) {
return "LINEAR_MIPMAP_LINEAR";
}
return "**UNKNOWN**";
}
static std::string PrintIntArray(const std::vector<int> &arr) {
if (arr.size() == 0) {
return "";
}
std::stringstream ss;
ss << "[ ";
for (size_t i = 0; i < arr.size(); i++) {
ss << arr[i] << ((i != arr.size() - 1) ? ", " : "");
}
ss << " ]";
return ss.str();
}
static std::string PrintFloatArray(const std::vector<double> &arr) {
if (arr.size() == 0) {
return "";
}
std::stringstream ss;
ss << "[ ";
for (size_t i = 0; i < arr.size(); i++) {
ss << arr[i] << ((i != arr.size() - 1) ? ", " : "");
}
ss << " ]";
return ss.str();
}
static std::string Indent(const int indent) {
std::string s;
for (int i = 0; i < indent; i++) {
s += " ";
}
return s;
}
static std::string PrintParameterValue(const tinygltf::Parameter &param) {
if (!param.number_array.empty()) {
return PrintFloatArray(param.number_array);
} else {
return param.string_value;
}
}
static std::string PrintValue(const std::string &name,
const tinygltf::Value &value, const int indent) {
std::stringstream ss;
if (value.IsObject()) {
const tinygltf::Value::Object &o = value.Get<tinygltf::Value::Object>();
tinygltf::Value::Object::const_iterator it(o.begin());
tinygltf::Value::Object::const_iterator itEnd(o.end());
for (; it != itEnd; it++) {
ss << PrintValue(name, it->second, indent + 1);
}
} else if (value.IsString()) {
ss << Indent(indent) << name << " : " << value.Get<std::string>()
<< std::endl;
} else if (value.IsBool()) {
ss << Indent(indent) << name << " : " << value.Get<bool>() << std::endl;
} else if (value.IsNumber()) {
ss << Indent(indent) << name << " : " << value.Get<double>() << std::endl;
} else if (value.IsInt()) {
ss << Indent(indent) << name << " : " << value.Get<int>() << std::endl;
}
// @todo { binary, array }
return ss.str();
}
static void DumpNode(const tinygltf::Node &node, int indent) {
std::cout << Indent(indent) << "name : " << node.name << std::endl;
std::cout << Indent(indent) << "camera : " << node.camera << std::endl;
std::cout << Indent(indent) << "mesh : " << node.mesh << std::endl;
if (!node.rotation.empty()) {
std::cout << Indent(indent)
<< "rotation : " << PrintFloatArray(node.rotation)
<< std::endl;
}
if (!node.scale.empty()) {
std::cout << Indent(indent)
<< "scale : " << PrintFloatArray(node.scale) << std::endl;
}
if (!node.translation.empty()) {
std::cout << Indent(indent)
<< "translation : " << PrintFloatArray(node.translation)
<< std::endl;
}
if (!node.matrix.empty()) {
std::cout << Indent(indent)
<< "matrix : " << PrintFloatArray(node.matrix) << std::endl;
}
std::cout << Indent(indent)
<< "children : " << PrintIntArray(node.children) << std::endl;
}
static void DumpStringIntMap(const std::map<std::string, int> &m, int indent) {
std::map<std::string, int>::const_iterator it(m.begin());
std::map<std::string, int>::const_iterator itEnd(m.end());
for (; it != itEnd; it++) {
std::cout << Indent(indent) << it->first << ": " << it->second << std::endl;
}
}
static void DumpPrimitive(const tinygltf::Primitive &primitive, int indent) {
std::cout << Indent(indent) << "material : " << primitive.material
<< std::endl;
std::cout << Indent(indent) << "indices : " << primitive.indices << std::endl;
std::cout << Indent(indent) << "mode : " << PrintMode(primitive.mode)
<< "(" << primitive.mode << ")" << std::endl;
std::cout << Indent(indent)
<< "attributes(items=" << primitive.attributes.size() << ")"
<< std::endl;
DumpStringIntMap(primitive.attributes, indent + 1);
std::cout << Indent(indent) << "extras :" << std::endl
<< PrintValue("extras", primitive.extras, indent + 1) << std::endl;
}
static void Dump(const tinygltf::Model &model) {
std::cout << "=== Dump glTF ===" << std::endl;
std::cout << "asset.copyright : " << model.asset.copyright
<< std::endl;
std::cout << "asset.generator : " << model.asset.generator
<< std::endl;
std::cout << "asset.version : " << model.asset.version
<< std::endl;
std::cout << "asset.minVersion : " << model.asset.minVersion
<< std::endl;
std::cout << std::endl;
std::cout << "=== Dump scene ===" << std::endl;
std::cout << "defaultScene: " << model.defaultScene << std::endl;
{
std::cout << "scenes(items=" << model.scenes.size() << ")" << std::endl;
for (size_t i = 0; i < model.scenes.size(); i++) {
std::cout << Indent(1) << "scene[" << i
<< "] name : " << model.scenes[i].name << std::endl;
}
}
{
std::cout << "meshes(item=" << model.meshes.size() << ")" << std::endl;
for (size_t i = 0; i < model.meshes.size(); i++) {
std::cout << Indent(1) << "name : " << model.meshes[i].name
<< std::endl;
std::cout << Indent(1)
<< "primitives(items=" << model.meshes[i].primitives.size()
<< "): " << std::endl;
for (size_t k = 0; k < model.meshes[i].primitives.size(); k++) {
DumpPrimitive(model.meshes[i].primitives[k], 2);
}
}
}
{
for (size_t i = 0; i < model.accessors.size(); i++) {
const tinygltf::Accessor &accessor = model.accessors[i];
std::cout << Indent(1) << "name : " << accessor.name << std::endl;
std::cout << Indent(2) << "bufferView : " << accessor.bufferView
<< std::endl;
std::cout << Indent(2) << "byteOffset : " << accessor.byteOffset
<< std::endl;
std::cout << Indent(2) << "componentType: "
<< PrintComponentType(accessor.componentType) << "("
<< accessor.componentType << ")" << std::endl;
std::cout << Indent(2) << "count : " << accessor.count
<< std::endl;
std::cout << Indent(2) << "type : " << PrintType(accessor.type)
<< std::endl;
if (!accessor.minValues.empty()) {
std::cout << Indent(2) << "min : [";
for (size_t k = 0; k < accessor.minValues.size(); k++) {
std::cout << accessor.minValues[k]
<< ((i != accessor.minValues.size() - 1) ? ", " : "");
}
std::cout << "]" << std::endl;
}
if (!accessor.maxValues.empty()) {
std::cout << Indent(2) << "max : [";
for (size_t k = 0; k < accessor.maxValues.size(); k++) {
std::cout << accessor.maxValues[k]
<< ((i != accessor.maxValues.size() - 1) ? ", " : "");
}
std::cout << "]" << std::endl;
}
}
}
{
std::cout << "animations(items=" << model.animations.size() << ")"
<< std::endl;
for (size_t i = 0; i < model.animations.size(); i++) {
const tinygltf::Animation &animation = model.animations[i];
std::cout << Indent(1) << "name : " << animation.name
<< std::endl;
std::cout << Indent(1) << "channels : [ " << std::endl;
for (size_t j = 0; i < animation.channels.size(); i++) {
std::cout << Indent(2)
<< "sampler : " << animation.channels[j].sampler
<< std::endl;
std::cout << Indent(2)
<< "target.id : " << animation.channels[j].target_node
<< std::endl;
std::cout << Indent(2)
<< "target.path : " << animation.channels[j].target_path
<< std::endl;
std::cout << ((i != (animation.channels.size() - 1)) ? " , " : "");
}
std::cout << " ]" << std::endl;
std::cout << Indent(1) << "samplers(items=" << animation.samplers.size()
<< ")" << std::endl;
for (size_t j = 0; j < animation.samplers.size(); j++) {
const tinygltf::AnimationSampler &sampler = animation.samplers[j];
std::cout << Indent(2) << "input : " << sampler.input
<< std::endl;
std::cout << Indent(2) << "interpolation : " << sampler.interpolation
<< std::endl;
std::cout << Indent(2) << "output : " << sampler.output
<< std::endl;
}
}
}
{
std::cout << "bufferViews(items=" << model.bufferViews.size() << ")"
<< std::endl;
for (size_t i = 0; i < model.bufferViews.size(); i++) {
const tinygltf::BufferView &bufferView = model.bufferViews[i];
std::cout << Indent(1) << "name : " << bufferView.name
<< std::endl;
std::cout << Indent(2) << "buffer : " << bufferView.buffer
<< std::endl;
std::cout << Indent(2) << "byteLength : " << bufferView.byteLength
<< std::endl;
std::cout << Indent(2) << "byteOffset : " << bufferView.byteOffset
<< std::endl;
std::cout << Indent(2) << "byteStride : " << bufferView.byteStride
<< std::endl;
std::cout << Indent(2)
<< "target : " << PrintTarget(bufferView.target)
<< std::endl;
}
}
{
std::cout << "buffers(items=" << model.buffers.size() << ")" << std::endl;
for (size_t i = 0; i < model.buffers.size(); i++) {
const tinygltf::Buffer &buffer = model.buffers[i];
std::cout << Indent(1) << "name : " << buffer.name << std::endl;
std::cout << Indent(2) << "byteLength : " << buffer.data.size()
<< std::endl;
}
}
{
std::cout << "materials(items=" << model.materials.size() << ")"
<< std::endl;
for (size_t i = 0; i < model.materials.size(); i++) {
const tinygltf::Material &material = model.materials[i];
std::cout << Indent(1) << "name : " << material.name << std::endl;
std::cout << Indent(1) << "values(items=" << material.values.size() << ")"
<< std::endl;
tinygltf::ParameterMap::const_iterator p(material.values.begin());
tinygltf::ParameterMap::const_iterator pEnd(material.values.end());
for (; p != pEnd; p++) {
std::cout << Indent(2) << p->first << ": "
<< PrintParameterValue(p->second) << std::endl;
}
}
}
{
std::cout << "nodes(items=" << model.nodes.size() << ")" << std::endl;
for (size_t i = 0; i < model.nodes.size(); i++) {
const tinygltf::Node &node = model.nodes[i];
std::cout << Indent(1) << "name : " << node.name << std::endl;
DumpNode(node, 2);
}
}
{
std::cout << "images(items=" << model.images.size() << ")" << std::endl;
for (size_t i = 0; i < model.images.size(); i++) {
const tinygltf::Image &image = model.images[i];
std::cout << Indent(1) << "name : " << image.name << std::endl;
std::cout << Indent(2) << "width : " << image.width << std::endl;
std::cout << Indent(2) << "height : " << image.height << std::endl;
std::cout << Indent(2) << "component : " << image.component << std::endl;
}
}
{
std::cout << "textures(items=" << model.textures.size() << ")" << std::endl;
for (size_t i = 0; i < model.textures.size(); i++) {
const tinygltf::Texture &texture = model.textures[i];
std::cout << Indent(1) << "sampler : " << texture.sampler
<< std::endl;
std::cout << Indent(1) << "source : " << texture.source
<< std::endl;
}
}
{
std::cout << "samplers(items=" << model.samplers.size() << ")" << std::endl;
for (size_t i = 0; i < model.samplers.size(); i++) {
const tinygltf::Sampler &sampler = model.samplers[i];
std::cout << Indent(1) << "name (id) : " << sampler.name << std::endl;
std::cout << Indent(2)
<< "minFilter : " << PrintFilterMode(sampler.minFilter)
<< std::endl;
std::cout << Indent(2)
<< "magFilter : " << PrintFilterMode(sampler.magFilter)
<< std::endl;
std::cout << Indent(2)
<< "wrapS : " << PrintWrapMode(sampler.wrapS)
<< std::endl;
std::cout << Indent(2)
<< "wrapT : " << PrintWrapMode(sampler.wrapT)
<< std::endl;
}
}
{
std::cout << "cameras(items=" << model.cameras.size() << ")" << std::endl;
for (size_t i = 0; i < model.cameras.size(); i++) {
const tinygltf::Camera &camera = model.cameras[i];
std::cout << Indent(1) << "name (id) : " << camera.name << std::endl;
std::cout << Indent(1) << "type : " << camera.type << std::endl;
if (camera.type.compare("perspective") == 0) {
std::cout << Indent(2)
<< "aspectRatio : " << camera.perspective.aspectRatio
<< std::endl;
std::cout << Indent(2) << "yfov : " << camera.perspective.yfov
<< std::endl;
std::cout << Indent(2) << "zfar : " << camera.perspective.zfar
<< std::endl;
std::cout << Indent(2) << "znear : " << camera.perspective.znear
<< std::endl;
} else if (camera.type.compare("orthographic") == 0) {
std::cout << Indent(2) << "xmag : " << camera.orthographic.xmag
<< std::endl;
std::cout << Indent(2) << "ymag : " << camera.orthographic.ymag
<< std::endl;
std::cout << Indent(2) << "zfar : " << camera.orthographic.zfar
<< std::endl;
std::cout << Indent(2)
<< "znear : " << camera.orthographic.znear
<< std::endl;
}
}
}
}
int main(int argc, char **argv) {
if (argc < 2) {
printf("Needs input.gltf\n");
exit(1);
}
tinygltf::Model model;
tinygltf::TinyGLTF gltf_ctx;
std::string err;
std::string input_filename(argv[1]);
std::string ext = GetFilePathExtension(input_filename);
bool ret = false;
if (ext.compare("glb") == 0) {
std::cout << "Reading binary glTF" << std::endl;
// assume binary glTF.
ret = gltf_ctx.LoadBinaryFromFile(&model, &err, input_filename.c_str());
} else {
std::cout << "Reading ASCII glTF" << std::endl;
// assume ascii glTF.
ret = gltf_ctx.LoadASCIIFromFile(&model, &err, input_filename.c_str());
}
if (!err.empty()) {
printf("Err: %s\n", err.c_str());
}
if (!ret) {
printf("Failed to parse glTF\n");
return -1;
}
Dump(model);
return 0;
}