Files
bullet3/examples/Importers/ImportObjDemo/LoadMeshFromObj.cpp
Erwin Coumans 19295f2859 enable file caching, currently only for Wavefront .obj files. You can disable file caching using
pybullet.setPhysicsEngineParameter(enableFileCaching=0)
Allow VR camera tracking only using position tracking, no orientation tracking (use
pybullet.setVRCamera([posX,posY,posZ],trackObjectFlag=0 or pybullet.VR_CAMERA_TRACK_OBJECT_ORIENTATION)
2017-05-17 19:29:12 -07:00

70 lines
1.6 KiB
C++

#include "LoadMeshFromObj.h"
#include "../../OpenGLWindow/GLInstanceGraphicsShape.h"
#include <stdio.h> //fopen
#include "Bullet3Common/b3AlignedObjectArray.h"
#include <string>
#include <vector>
#include "Wavefront2GLInstanceGraphicsShape.h"
#include "Bullet3Common/b3HashMap.h"
struct CachedObjResult
{
std::string m_msg;
std::vector<tinyobj::shape_t> m_shapes;
};
static b3HashMap<b3HashString, CachedObjResult> gCachedObjResults;
static int gEnableFileCaching = 1;
void b3EnableFileCaching(int enable)
{
gEnableFileCaching = enable;
if (enable==0)
{
gCachedObjResults.clear();
}
}
std::string LoadFromCachedOrFromObj(
std::vector<tinyobj::shape_t>& shapes, // [output]
const char* filename,
const char* mtl_basepath)
{
CachedObjResult* resultPtr = gCachedObjResults[filename];
if (resultPtr)
{
const CachedObjResult& result = *resultPtr;
shapes = result.m_shapes;
return result.m_msg;
}
std::string err = tinyobj::LoadObj(shapes, filename, mtl_basepath);
CachedObjResult result;
result.m_msg = err;
result.m_shapes = shapes;
if (gEnableFileCaching)
{
gCachedObjResults.insert(filename,result);
}
return err;
}
GLInstanceGraphicsShape* LoadMeshFromObj(const char* relativeFileName, const char* materialPrefixPath)
{
B3_PROFILE("LoadMeshFromObj");
std::vector<tinyobj::shape_t> shapes;
{
B3_PROFILE("tinyobj::LoadObj2");
std::string err = LoadFromCachedOrFromObj(shapes, relativeFileName, materialPrefixPath);
}
{
B3_PROFILE("btgCreateGraphicsShapeFromWavefrontObj");
GLInstanceGraphicsShape* gfxShape = btgCreateGraphicsShapeFromWavefrontObj(shapes);
return gfxShape;
}
}