Merge pull request #67 from pra85/patch-1
Fix a typo and add syntax highlighting language
This commit is contained in:
Syoyo Fujita
179
README.md
179
README.md
@@ -13,7 +13,7 @@ tinyobjloader
|
||||
|
||||
http://syoyo.github.io/tinyobjloader/
|
||||
|
||||
Tiny but poweful single file wavefront obj loader written in C++. No dependency except for C++ STL. It can parse 10M over polygons with moderate memory and time.
|
||||
Tiny but powerful single file wavefront obj loader written in C++. No dependency except for C++ STL. It can parse 10M over polygons with moderate memory and time.
|
||||
|
||||
`tinyobjloader` is good for embedding .obj loader to your (global illumination) renderer ;-)
|
||||
|
||||
@@ -88,106 +88,107 @@ Usage
|
||||
-----
|
||||
|
||||
TinyObjLoader triangulate input .obj by default.
|
||||
```c++
|
||||
#define TINYOBJLOADER_IMPLEMENTATION // define this in only *one* .cc
|
||||
#include "tiny_obj_loader.h"
|
||||
|
||||
#define TINYOBJLOADER_IMPLEMENTATION // define this in only *one* .cc
|
||||
#include "tiny_obj_loader.h"
|
||||
|
||||
std::string inputfile = "cornell_box.obj";
|
||||
std::vector<tinyobj::shape_t> shapes;
|
||||
std::vector<tinyobj::material_t> materials;
|
||||
std::string inputfile = "cornell_box.obj";
|
||||
std::vector<tinyobj::shape_t> shapes;
|
||||
std::vector<tinyobj::material_t> materials;
|
||||
|
||||
std::string err;
|
||||
bool ret = tinyobj::LoadObj(shapes, materials, err, inputfile.c_str());
|
||||
std::string err;
|
||||
bool ret = tinyobj::LoadObj(shapes, materials, err, inputfile.c_str());
|
||||
|
||||
if (!err.empty()) { // `err` may contain warning message.
|
||||
std::cerr << err << std::endl;
|
||||
}
|
||||
if (!err.empty()) { // `err` may contain warning message.
|
||||
std::cerr << err << std::endl;
|
||||
}
|
||||
|
||||
if (!ret) {
|
||||
exit(1);
|
||||
}
|
||||
if (!ret) {
|
||||
exit(1);
|
||||
}
|
||||
|
||||
std::cout << "# of shapes : " << shapes.size() << std::endl;
|
||||
std::cout << "# of materials : " << materials.size() << std::endl;
|
||||
std::cout << "# of shapes : " << shapes.size() << std::endl;
|
||||
std::cout << "# of materials : " << materials.size() << std::endl;
|
||||
|
||||
for (size_t i = 0; i < shapes.size(); i++) {
|
||||
printf("shape[%ld].name = %s\n", i, shapes[i].name.c_str());
|
||||
printf("Size of shape[%ld].indices: %ld\n", i, shapes[i].mesh.indices.size());
|
||||
printf("Size of shape[%ld].material_ids: %ld\n", i, shapes[i].mesh.material_ids.size());
|
||||
assert((shapes[i].mesh.indices.size() % 3) == 0);
|
||||
for (size_t f = 0; f < shapes[i].mesh.indices.size() / 3; f++) {
|
||||
printf(" idx[%ld] = %d, %d, %d. mat_id = %d\n", f, shapes[i].mesh.indices[3*f+0], shapes[i].mesh.indices[3*f+1], shapes[i].mesh.indices[3*f+2], shapes[i].mesh.material_ids[f]);
|
||||
}
|
||||
for (size_t i = 0; i < shapes.size(); i++) {
|
||||
printf("shape[%ld].name = %s\n", i, shapes[i].name.c_str());
|
||||
printf("Size of shape[%ld].indices: %ld\n", i, shapes[i].mesh.indices.size());
|
||||
printf("Size of shape[%ld].material_ids: %ld\n", i, shapes[i].mesh.material_ids.size());
|
||||
assert((shapes[i].mesh.indices.size() % 3) == 0);
|
||||
for (size_t f = 0; f < shapes[i].mesh.indices.size() / 3; f++) {
|
||||
printf(" idx[%ld] = %d, %d, %d. mat_id = %d\n", f, shapes[i].mesh.indices[3*f+0], shapes[i].mesh.indices[3*f+1], shapes[i].mesh.indices[3*f+2], shapes[i].mesh.material_ids[f]);
|
||||
}
|
||||
|
||||
printf("shape[%ld].vertices: %ld\n", i, shapes[i].mesh.positions.size());
|
||||
assert((shapes[i].mesh.positions.size() % 3) == 0);
|
||||
for (size_t v = 0; v < shapes[i].mesh.positions.size() / 3; v++) {
|
||||
printf(" v[%ld] = (%f, %f, %f)\n", v,
|
||||
shapes[i].mesh.positions[3*v+0],
|
||||
shapes[i].mesh.positions[3*v+1],
|
||||
shapes[i].mesh.positions[3*v+2]);
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < materials.size(); i++) {
|
||||
printf("material[%ld].name = %s\n", i, materials[i].name.c_str());
|
||||
printf(" material.Ka = (%f, %f ,%f)\n", materials[i].ambient[0], materials[i].ambient[1], materials[i].ambient[2]);
|
||||
printf(" material.Kd = (%f, %f ,%f)\n", materials[i].diffuse[0], materials[i].diffuse[1], materials[i].diffuse[2]);
|
||||
printf(" material.Ks = (%f, %f ,%f)\n", materials[i].specular[0], materials[i].specular[1], materials[i].specular[2]);
|
||||
printf(" material.Tr = (%f, %f ,%f)\n", materials[i].transmittance[0], materials[i].transmittance[1], materials[i].transmittance[2]);
|
||||
printf(" material.Ke = (%f, %f ,%f)\n", materials[i].emission[0], materials[i].emission[1], materials[i].emission[2]);
|
||||
printf(" material.Ns = %f\n", materials[i].shininess);
|
||||
printf(" material.Ni = %f\n", materials[i].ior);
|
||||
printf(" material.dissolve = %f\n", materials[i].dissolve);
|
||||
printf(" material.illum = %d\n", materials[i].illum);
|
||||
printf(" material.map_Ka = %s\n", materials[i].ambient_texname.c_str());
|
||||
printf(" material.map_Kd = %s\n", materials[i].diffuse_texname.c_str());
|
||||
printf(" material.map_Ks = %s\n", materials[i].specular_texname.c_str());
|
||||
printf(" material.map_Ns = %s\n", materials[i].specular_highlight_texname.c_str());
|
||||
std::map<std::string, std::string>::const_iterator it(materials[i].unknown_parameter.begin());
|
||||
std::map<std::string, std::string>::const_iterator itEnd(materials[i].unknown_parameter.end());
|
||||
for (; it != itEnd; it++) {
|
||||
printf(" material.%s = %s\n", it->first.c_str(), it->second.c_str());
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
printf("shape[%ld].vertices: %ld\n", i, shapes[i].mesh.positions.size());
|
||||
assert((shapes[i].mesh.positions.size() % 3) == 0);
|
||||
for (size_t v = 0; v < shapes[i].mesh.positions.size() / 3; v++) {
|
||||
printf(" v[%ld] = (%f, %f, %f)\n", v,
|
||||
shapes[i].mesh.positions[3*v+0],
|
||||
shapes[i].mesh.positions[3*v+1],
|
||||
shapes[i].mesh.positions[3*v+2]);
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < materials.size(); i++) {
|
||||
printf("material[%ld].name = %s\n", i, materials[i].name.c_str());
|
||||
printf(" material.Ka = (%f, %f ,%f)\n", materials[i].ambient[0], materials[i].ambient[1], materials[i].ambient[2]);
|
||||
printf(" material.Kd = (%f, %f ,%f)\n", materials[i].diffuse[0], materials[i].diffuse[1], materials[i].diffuse[2]);
|
||||
printf(" material.Ks = (%f, %f ,%f)\n", materials[i].specular[0], materials[i].specular[1], materials[i].specular[2]);
|
||||
printf(" material.Tr = (%f, %f ,%f)\n", materials[i].transmittance[0], materials[i].transmittance[1], materials[i].transmittance[2]);
|
||||
printf(" material.Ke = (%f, %f ,%f)\n", materials[i].emission[0], materials[i].emission[1], materials[i].emission[2]);
|
||||
printf(" material.Ns = %f\n", materials[i].shininess);
|
||||
printf(" material.Ni = %f\n", materials[i].ior);
|
||||
printf(" material.dissolve = %f\n", materials[i].dissolve);
|
||||
printf(" material.illum = %d\n", materials[i].illum);
|
||||
printf(" material.map_Ka = %s\n", materials[i].ambient_texname.c_str());
|
||||
printf(" material.map_Kd = %s\n", materials[i].diffuse_texname.c_str());
|
||||
printf(" material.map_Ks = %s\n", materials[i].specular_texname.c_str());
|
||||
printf(" material.map_Ns = %s\n", materials[i].specular_highlight_texname.c_str());
|
||||
std::map<std::string, std::string>::const_iterator it(materials[i].unknown_parameter.begin());
|
||||
std::map<std::string, std::string>::const_iterator itEnd(materials[i].unknown_parameter.end());
|
||||
for (; it != itEnd; it++) {
|
||||
printf(" material.%s = %s\n", it->first.c_str(), it->second.c_str());
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
```
|
||||
|
||||
Reading .obj without triangulation. Use `num_vertices[i]` to iterate over faces(indices). `num_vertices[i]` stores the number of vertices for ith face.
|
||||
```c++
|
||||
#define TINYOBJLOADER_IMPLEMENTATION // define this in only *one* .cc
|
||||
#include "tiny_obj_loader.h"
|
||||
|
||||
#define TINYOBJLOADER_IMPLEMENTATION // define this in only *one* .cc
|
||||
#include "tiny_obj_loader.h"
|
||||
|
||||
std::string inputfile = "cornell_box.obj";
|
||||
std::vector<tinyobj::shape_t> shapes;
|
||||
std::vector<tinyobj::material_t> materials;
|
||||
std::string inputfile = "cornell_box.obj";
|
||||
std::vector<tinyobj::shape_t> shapes;
|
||||
std::vector<tinyobj::material_t> materials;
|
||||
|
||||
std::string err;
|
||||
bool triangulate = false;
|
||||
bool ret = tinyobj::LoadObj(shapes, materials, err, inputfile.c_str(), triangulate);
|
||||
std::string err;
|
||||
bool triangulate = false;
|
||||
bool ret = tinyobj::LoadObj(shapes, materials, err, inputfile.c_str(), triangulate);
|
||||
|
||||
if (!err.empty()) { // `err` may contain warning message.
|
||||
std::cerr << err << std::endl;
|
||||
if (!err.empty()) { // `err` may contain warning message.
|
||||
std::cerr << err << std::endl;
|
||||
}
|
||||
|
||||
if (!ret) {
|
||||
exit(1);
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < shapes.size(); i++) {
|
||||
|
||||
size_t indexOffset = 0;
|
||||
for (size_t n = 0; n < shapes[i].mesh.num_vertices.size(); n++) {
|
||||
int ngon = shapes[i].mesh.num_vertices[n];
|
||||
for (size_t f = 0; f < ngon; f++) {
|
||||
unsigend int v = shapes[i].mesh.indices[indexOffset + f];
|
||||
printf(" face[%ld] v[%ld] = (%f, %f, %f)\n", n,
|
||||
shapes[i].mesh.positions[3*v+0],
|
||||
shapes[i].mesh.positions[3*v+1],
|
||||
shapes[i].mesh.positions[3*v+2]);
|
||||
|
||||
}
|
||||
indexOffset += ngon;
|
||||
}
|
||||
|
||||
if (!ret) {
|
||||
exit(1);
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < shapes.size(); i++) {
|
||||
|
||||
size_t indexOffset = 0;
|
||||
for (size_t n = 0; n < shapes[i].mesh.num_vertices.size(); n++) {
|
||||
int ngon = shapes[i].mesh.num_vertices[n];
|
||||
for (size_t f = 0; f < ngon; f++) {
|
||||
unsigend int v = shapes[i].mesh.indices[indexOffset + f];
|
||||
printf(" face[%ld] v[%ld] = (%f, %f, %f)\n", n,
|
||||
shapes[i].mesh.positions[3*v+0],
|
||||
shapes[i].mesh.positions[3*v+1],
|
||||
shapes[i].mesh.positions[3*v+2]);
|
||||
|
||||
}
|
||||
indexOffset += ngon;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
Reference in New Issue
Block a user