Compare commits
3 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
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2af1d84b25 | ||
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b5f348e37e | ||
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51d13700d8 |
10
test.cc
10
test.cc
@@ -302,7 +302,8 @@ std::string matStream(
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"newmtl light\n"
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"newmtl light\n"
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"Ka 20 20 20\n"
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"Ka 20 20 20\n"
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"Kd 1 1 1\n"
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"Kd 1 1 1\n"
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"Ks 0 0 0");
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"Ks 0 0 0\n"
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"map_Kd tmp.png \n"); // #92(whitespace after filename)
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using namespace tinyobj;
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using namespace tinyobj;
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class MaterialStringStreamReader:
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class MaterialStringStreamReader:
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@@ -343,6 +344,13 @@ std::string matStream(
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PrintInfo(shapes, materials);
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PrintInfo(shapes, materials);
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// #92
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for (size_t i = 0; i < materials.size(); i++) {
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if (materials[i].name.compare("light") == 0) {
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assert(materials[i].diffuse_texname.compare("tmp.png") == 0);
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}
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}
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return true;
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return true;
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}
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}
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@@ -42,10 +42,10 @@
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#ifndef TINY_OBJ_LOADER_H_
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#ifndef TINY_OBJ_LOADER_H_
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#define TINY_OBJ_LOADER_H_
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#define TINY_OBJ_LOADER_H_
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#include <cmath>
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#include <map>
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#include <string>
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#include <string>
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#include <vector>
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#include <vector>
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#include <map>
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#include <cmath>
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namespace tinyobj {
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namespace tinyobj {
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@@ -99,52 +99,37 @@ typedef struct {
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mesh_t mesh;
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mesh_t mesh;
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} shape_t;
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} shape_t;
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typedef enum
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typedef enum {
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{
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triangulation = 1, // used whether triangulate polygon face in .obj
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triangulation = 1, // used whether triangulate polygon face in .obj
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calculate_normals =
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calculate_normals = 2, // used whether calculate the normals if the .obj normals are empty
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2, // used whether calculate the normals if the .obj normals are empty
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// Some nice stuff here
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// Some nice stuff here
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} load_flags_t;
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} load_flags_t;
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class float3
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class float3 {
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{
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public:
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public:
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float3()
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float3() : x(0.0f), y(0.0f), z(0.0f) {}
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: x( 0.0f )
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, y( 0.0f )
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, z( 0.0f )
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{
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}
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float3(float coord_x, float coord_y, float coord_z)
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float3(float coord_x, float coord_y, float coord_z)
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: x( coord_x )
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: x(coord_x), y(coord_y), z(coord_z) {}
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, y( coord_y )
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, z( coord_z )
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{
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}
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float3(const float3& from, const float3& to)
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float3(const float3 &from, const float3 &to) {
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{
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coord[0] = to.coord[0] - from.coord[0];
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coord[0] = to.coord[0] - from.coord[0];
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coord[1] = to.coord[1] - from.coord[1];
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coord[1] = to.coord[1] - from.coord[1];
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coord[2] = to.coord[2] - from.coord[2];
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coord[2] = to.coord[2] - from.coord[2];
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}
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}
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float3 crossproduct ( const float3 & vec )
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float3 crossproduct(const float3 &vec) {
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{
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float a = y * vec.z - z * vec.y;
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float a = y * vec.z - z * vec.y ;
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float b = z * vec.x - x * vec.z;
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float b = z * vec.x - x * vec.z ;
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float c = x * vec.y - y * vec.x;
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float c = x * vec.y - y * vec.x ;
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return float3(a, b, c);
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return float3( a , b , c );
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}
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}
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void normalize()
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void normalize() {
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{
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const float length = std::sqrt(
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const float length = std::sqrt( ( coord[0] * coord[0] ) +
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(coord[0] * coord[0]) + (coord[1] * coord[1]) + (coord[2] * coord[2]));
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( coord[1] * coord[1] ) +
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if (length != 1) {
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( coord[2] * coord[2] ) );
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if( length != 1 )
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{
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coord[0] = (coord[0] / length);
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coord[0] = (coord[0] / length);
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coord[1] = (coord[1] / length);
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coord[1] = (coord[1] / length);
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coord[2] = (coord[2] / length);
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coord[2] = (coord[2] / length);
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@@ -152,12 +137,10 @@ public:
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}
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}
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private:
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private:
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union
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union {
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{
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float coord[3];
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float coord[3];
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struct
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struct {
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{
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float x, y, z;
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float x,y,z;
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};
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};
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};
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};
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};
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};
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@@ -197,7 +180,7 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
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std::vector<material_t> &materials, // [output]
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std::vector<material_t> &materials, // [output]
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std::string &err, // [output]
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std::string &err, // [output]
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const char *filename, const char *mtl_basepath = NULL,
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const char *filename, const char *mtl_basepath = NULL,
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unsigned int flags = 1 );
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unsigned int flags = 1);
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/// Loads object from a std::istream, uses GetMtlIStreamFn to retrieve
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/// Loads object from a std::istream, uses GetMtlIStreamFn to retrieve
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/// std::istream for materials.
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/// std::istream for materials.
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@@ -216,12 +199,12 @@ void LoadMtl(std::map<std::string, int> &material_map, // [output]
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}
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}
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#ifdef TINYOBJLOADER_IMPLEMENTATION
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#ifdef TINYOBJLOADER_IMPLEMENTATION
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#include <cstdlib>
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#include <cstring>
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#include <cassert>
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#include <cassert>
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#include <cctype>
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#include <cmath>
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#include <cmath>
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#include <cstddef>
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#include <cstddef>
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#include <cctype>
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#include <cstdlib>
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#include <cstring>
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#include <fstream>
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#include <fstream>
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#include <sstream>
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#include <sstream>
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@@ -267,43 +250,43 @@ struct obj_shape {
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std::vector<float> vt;
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std::vector<float> vt;
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};
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};
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//See http://stackoverflow.com/questions/6089231/getting-std-ifstream-to-handle-lf-cr-and-crlf
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// See
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std::istream& safeGetline(std::istream& is, std::string& t)
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// http://stackoverflow.com/questions/6089231/getting-std-ifstream-to-handle-lf-cr-and-crlf
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{
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std::istream &safeGetline(std::istream &is, std::string &t) {
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t.clear();
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t.clear();
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// The characters in the stream are read one-by-one using a std::streambuf.
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// The characters in the stream are read one-by-one using a std::streambuf.
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// That is faster than reading them one-by-one using the std::istream.
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// That is faster than reading them one-by-one using the std::istream.
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// Code that uses streambuf this way must be guarded by a sentry object.
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// Code that uses streambuf this way must be guarded by a sentry object.
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// The sentry object performs various tasks,
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// The sentry object performs various tasks,
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// such as thread synchronization and updating the stream state.
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// such as thread synchronization and updating the stream state.
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std::istream::sentry se(is, true);
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std::istream::sentry se(is, true);
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std::streambuf* sb = is.rdbuf();
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std::streambuf *sb = is.rdbuf();
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for(;;) {
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for (;;) {
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int c = sb->sbumpc();
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int c = sb->sbumpc();
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switch (c) {
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switch (c) {
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case '\n':
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case '\n':
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return is;
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return is;
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case '\r':
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case '\r':
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if(sb->sgetc() == '\n')
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if (sb->sgetc() == '\n')
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sb->sbumpc();
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sb->sbumpc();
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return is;
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return is;
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case EOF:
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case EOF:
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// Also handle the case when the last line has no line ending
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// Also handle the case when the last line has no line ending
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if(t.empty())
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if (t.empty())
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is.setstate(std::ios::eofbit);
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is.setstate(std::ios::eofbit);
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return is;
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return is;
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default:
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default:
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t += (char)c;
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t += (char)c;
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}
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}
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}
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}
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}
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}
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#define IS_SPACE( x ) ( ( (x) == ' ') || ( (x) == '\t') )
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#define IS_SPACE(x) (((x) == ' ') || ((x) == '\t'))
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#define IS_DIGIT( x ) ( (unsigned int)( (x) - '0' ) < (unsigned int)10 )
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#define IS_DIGIT(x) ((unsigned int)((x) - '0') < (unsigned int)10)
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#define IS_NEW_LINE( x ) ( ( (x) == '\r') || ( (x) == '\n') || ( (x) == '\0') )
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#define IS_NEW_LINE(x) (((x) == '\r') || ((x) == '\n') || ((x) == '\0'))
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// Make index zero-base, and also support relative index.
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// Make index zero-base, and also support relative index.
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static inline int fixIndex(int idx, int n) {
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static inline int fixIndex(int idx, int n) {
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@@ -614,13 +597,13 @@ static bool exportFaceGroupToShape(
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const std::vector<float> &in_texcoords,
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const std::vector<float> &in_texcoords,
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const std::vector<std::vector<vertex_index> > &faceGroup,
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const std::vector<std::vector<vertex_index> > &faceGroup,
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std::vector<tag_t> &tags, const int material_id, const std::string &name,
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std::vector<tag_t> &tags, const int material_id, const std::string &name,
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bool clearCache, unsigned int flags, std::string& err ) {
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bool clearCache, unsigned int flags, std::string &err) {
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if (faceGroup.empty()) {
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if (faceGroup.empty()) {
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return false;
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return false;
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}
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}
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bool triangulate( ( flags & triangulation ) == triangulation );
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bool triangulate((flags & triangulation) == triangulation);
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bool normals_calculation( ( flags & calculate_normals ) == calculate_normals );
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bool normals_calculation((flags & calculate_normals) == calculate_normals);
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// Flatten vertices and indices
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// Flatten vertices and indices
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for (size_t i = 0; i < faceGroup.size(); i++) {
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for (size_t i = 0; i < faceGroup.size(); i++) {
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@@ -673,31 +656,41 @@ static bool exportFaceGroupToShape(
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}
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}
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if (normals_calculation && shape.mesh.normals.empty()) {
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if (normals_calculation && shape.mesh.normals.empty()) {
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const size_t nIndexs = shape.mesh.indices.size();
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const size_t nIndexs = shape.mesh.indices.size();
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if (nIndexs % 3 == 0) {
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if (nIndexs % 3 == 0) {
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shape.mesh.normals.resize(shape.mesh.positions.size());
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shape.mesh.normals.resize(shape.mesh.positions.size());
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for (register size_t iIndices = 0; iIndices < nIndexs; iIndices += 3) {
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for (size_t iIndices = 0; iIndices < nIndexs; iIndices += 3) {
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float3 v1, v2, v3;
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float3 v1, v2, v3;
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memcpy(&v1, &shape.mesh.positions[shape.mesh.indices[iIndices] * 3], sizeof(float3));
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memcpy(&v1, &shape.mesh.positions[shape.mesh.indices[iIndices] * 3],
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memcpy(&v2, &shape.mesh.positions[shape.mesh.indices[iIndices + 1] * 3], sizeof(float3));
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sizeof(float3));
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memcpy(&v3, &shape.mesh.positions[shape.mesh.indices[iIndices + 2] * 3], sizeof(float3));
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memcpy(&v2, &shape.mesh.positions[shape.mesh.indices[iIndices + 1] * 3],
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sizeof(float3));
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memcpy(&v3, &shape.mesh.positions[shape.mesh.indices[iIndices + 2] * 3],
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sizeof(float3));
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float3 v12(v1, v2);
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float3 v12(v1, v2);
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float3 v13(v1, v3);
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float3 v13(v1, v3);
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float3 normal = v12.crossproduct(v13);
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float3 normal = v12.crossproduct(v13);
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normal.normalize();
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normal.normalize();
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices] * 3], &normal, sizeof(float3));
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices] * 3], &normal,
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices + 1] * 3], &normal, sizeof(float3));
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sizeof(float3));
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices + 2] * 3], &normal, sizeof(float3));
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices + 1] * 3],
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}
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&normal, sizeof(float3));
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} else {
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memcpy(&shape.mesh.normals[shape.mesh.indices[iIndices + 2] * 3],
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&normal, sizeof(float3));
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}
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} else {
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std::stringstream ss;
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std::stringstream ss;
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ss << "WARN: The shape " << name << " does not have a topology of triangles, therfore the normals calculation could not be performed. Select the tinyobj::triangulation flag for this object." << std::endl;
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ss << "WARN: The shape " << name
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err += ss.str();
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<< " does not have a topology of triangles, therfore the normals "
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}
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"calculation could not be performed. Select the "
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"tinyobj::triangulation flag for this object."
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<< std::endl;
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err += ss.str();
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}
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}
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}
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shape.name = name;
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shape.name = name;
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@@ -720,6 +713,11 @@ void LoadMtl(std::map<std::string, int> &material_map,
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std::string linebuf;
|
std::string linebuf;
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safeGetline(inStream, linebuf);
|
safeGetline(inStream, linebuf);
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|
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|
// Trim trailing whitespace
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|
if (linebuf.size() > 0) {
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linebuf = linebuf.substr(0, linebuf.find_last_not_of(" \t") + 1);
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}
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|
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// Trim newline '\r\n' or '\n'
|
// Trim newline '\r\n' or '\n'
|
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if (linebuf.size() > 0) {
|
if (linebuf.size() > 0) {
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if (linebuf[linebuf.size() - 1] == '\n')
|
if (linebuf[linebuf.size() - 1] == '\n')
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@@ -1110,7 +1108,7 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
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if (newMaterialId != material) {
|
if (newMaterialId != material) {
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// Create per-face material
|
// Create per-face material
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exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
|
exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
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material, name, true, flags, err );
|
material, name, true, flags, err);
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faceGroup.clear();
|
faceGroup.clear();
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material = newMaterialId;
|
material = newMaterialId;
|
||||||
}
|
}
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||||||
@@ -1146,7 +1144,7 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
|
|||||||
// flush previous face group.
|
// flush previous face group.
|
||||||
bool ret =
|
bool ret =
|
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exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
|
exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
|
||||||
material, name, true, flags, err );
|
material, name, true, flags, err);
|
||||||
if (ret) {
|
if (ret) {
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shapes.push_back(shape);
|
shapes.push_back(shape);
|
||||||
}
|
}
|
||||||
@@ -1183,7 +1181,7 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
|
|||||||
// flush previous face group.
|
// flush previous face group.
|
||||||
bool ret =
|
bool ret =
|
||||||
exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
|
exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup, tags,
|
||||||
material, name, true, flags, err );
|
material, name, true, flags, err);
|
||||||
if (ret) {
|
if (ret) {
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shapes.push_back(shape);
|
shapes.push_back(shape);
|
||||||
}
|
}
|
||||||
@@ -1239,7 +1237,8 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
|
|||||||
char stringValueBuffer[4096];
|
char stringValueBuffer[4096];
|
||||||
|
|
||||||
#ifdef _MSC_VER
|
#ifdef _MSC_VER
|
||||||
sscanf_s(token, "%s", stringValueBuffer, (unsigned)_countof(stringValueBuffer));
|
sscanf_s(token, "%s", stringValueBuffer,
|
||||||
|
(unsigned)_countof(stringValueBuffer));
|
||||||
#else
|
#else
|
||||||
sscanf(token, "%s", stringValueBuffer);
|
sscanf(token, "%s", stringValueBuffer);
|
||||||
#endif
|
#endif
|
||||||
@@ -1254,7 +1253,7 @@ bool LoadObj(std::vector<shape_t> &shapes, // [output]
|
|||||||
}
|
}
|
||||||
|
|
||||||
bool ret = exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup,
|
bool ret = exportFaceGroupToShape(shape, vertexCache, v, vn, vt, faceGroup,
|
||||||
tags, material, name, true, flags, err );
|
tags, material, name, true, flags, err);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
shapes.push_back(shape);
|
shapes.push_back(shape);
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user