void ImportObjSetup::initPhysics()
{
m_guiHelper->setUpAxis(2);
this->createEmptyDynamicsWorld();
m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe);
const char* fileName = "samurai_monastry.obj";
char relativeFileName[1024];
const char* prefix[]={"./data/","../data/","../../data/","../../../data/","../../../../data/"};
int prefixIndex=-1;
{
int numPrefixes = sizeof(prefix)/sizeof(char*);
for (int i=0;i<numPrefixes;i++)
{
FILE* f = 0;
sprintf(relativeFileName,"%s%s",prefix[i],fileName);
f = fopen(relativeFileName,"r");
if (f)
{
fclose(f);
prefixIndex = i;
break;
}
}
}
if (prefixIndex<0)
return;
btVector3 shift(0,0,0);
btVector3 scaling(10,10,10);
// int index=10;
{
std::vector<tinyobj::shape_t> shapes;
std::string err = tinyobj::LoadObj(shapes, relativeFileName, prefix[prefixIndex]);
GLInstanceGraphicsShape* gfxShape = btgCreateGraphicsShapeFromWavefrontObj(shapes);
btTransform trans;
trans.setIdentity();
trans.setRotation(btQuaternion(btVector3(1,0,0),SIMD_HALF_PI));
btVector3 position = trans.getOrigin();
btQuaternion orn = trans.getRotation();
btVector3 color(0,0,1);
int shapeId = m_guiHelper->getRenderInterface()->registerShape(&gfxShape->m_vertices->at(0).xyzw[0], gfxShape->m_numvertices, &gfxShape->m_indices->at(0), gfxShape->m_numIndices);
//int id =
m_guiHelper->getRenderInterface()->registerGraphicsInstance(shapeId,position,orn,color,scaling);
}
}
GLInstanceGraphicsShape* LoadMeshFromObj(const char* relativeFileName, const char* materialPrefixPath)
{
std::vector<tinyobj::shape_t> shapes;
std::string err = tinyobj::LoadObj(shapes, relativeFileName, materialPrefixPath);
GLInstanceGraphicsShape* gfxShape = btgCreateGraphicsShapeFromWavefrontObj(shapes);
return gfxShape;
}
bool b3ImportMeshUtility::loadAndRegisterMeshFromFileInternal(const std::string& fileName, b3ImportMeshData& meshData)
{
meshData.m_gfxShape = 0;
meshData.m_textureImage = 0;
meshData.m_textureHeight = 0;
meshData.m_textureWidth = 0;
char relativeFileName[1024];
if (b3ResourcePath::findResourcePath(fileName.c_str(), relativeFileName, 1024))
{
char pathPrefix[1024];
b3FileUtils::extractPath(relativeFileName, pathPrefix, 1024);
btVector3 shift(0,0,0);
std::vector<tinyobj::shape_t> shapes;
std::string err = tinyobj::LoadObj(shapes, relativeFileName, pathPrefix);
GLInstanceGraphicsShape* gfxShape = btgCreateGraphicsShapeFromWavefrontObj(shapes);
int textureIndex = -1;
//try to load some texture
for (int i=0;i<shapes.size();i++)
{
const tinyobj::shape_t& shape = shapes[i];
if (shape.material.diffuse_texname.length()>0)
{
int width,height,n;
const char* filename = shape.material.diffuse_texname.c_str();
unsigned char* image=0;
const char* prefix[]={ pathPrefix,"./","./data/","../data/","../../data/","../../../data/","../../../../data/"};
int numprefix = sizeof(prefix)/sizeof(const char*);
for (int i=0;!image && i<numprefix;i++)
{
char relativeFileName[1024];
sprintf(relativeFileName,"%s%s",prefix[i],filename);
char relativeFileName2[1024];
if (b3ResourcePath::findResourcePath(relativeFileName, relativeFileName2, 1024))
{
image = stbi_load(relativeFileName, &width, &height, &n, 3);
meshData.m_textureImage = image;
if (image)
{
meshData.m_textureWidth = width;
meshData.m_textureHeight = height;
} else
{
meshData.m_textureWidth = 0;
meshData.m_textureHeight = 0;
}
} else
{
b3Warning("not found %s\n",relativeFileName);
}
}
}
}
meshData.m_gfxShape = gfxShape;
return true;
}
else
{
b3Warning("Cannot find %s\n", fileName.c_str());
}
return false;
}
void ImportObjSetup::initPhysics(GraphicsPhysicsBridge& gfxBridge)
{
gfxBridge.setUpAxis(2);
this->createEmptyDynamicsWorld();
gfxBridge.createPhysicsDebugDrawer(m_dynamicsWorld);
m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe);
const char* fileName = "samurai_monastry.obj";
char relativeFileName[1024];
const char* prefix[]={"./data/","../data/","../../data/","../../../data/","../../../../data/"};
int prefixIndex=-1;
{
int numPrefixes = sizeof(prefix)/sizeof(char*);
for (int i=0;i<numPrefixes;i++)
{
FILE* f = 0;
sprintf(relativeFileName,"%s%s",prefix[i],fileName);
f = fopen(relativeFileName,"r");
if (f)
{
fclose(f);
prefixIndex = i;
break;
}
}
}
if (prefixIndex<0)
return;
btVector3 shift(0,0,0);
btVector3 scaling(10,10,10);
// int index=10;
{
std::vector<tinyobj::shape_t> shapes;
std::string err = tinyobj::LoadObj(shapes, relativeFileName, prefix[prefixIndex]);
GLInstanceGraphicsShape* gfxShape = btgCreateGraphicsShapeFromWavefrontObj(shapes);
btTransform trans;
trans.setIdentity();
trans.setRotation(btQuaternion(btVector3(1,0,0),SIMD_HALF_PI));
btVector3 position = trans.getOrigin();
btQuaternion orn = trans.getRotation();
btVector3 color(0,0,1);
int shapeId = m_app->m_renderer->registerShape(&gfxShape->m_vertices->at(0).xyzw[0], gfxShape->m_numvertices, &gfxShape->m_indices->at(0), gfxShape->m_numIndices);
//int id =
m_app->m_renderer->registerGraphicsInstance(shapeId,position,orn,color,scaling);
/*
btTriangleMesh* trimeshData = new btTriangleMesh();
for (int i=0;i<gfxShape->m_numvertices;i++)
{
for (int j=0;j<3;j++)
gfxShape->m_vertices->at(i).xyzw[j] += shift[j];
}
for (int i=0;i<gfxShape->m_numIndices;i+=3)
{
int index0 = gfxShape->m_indices->at(i);
int index1 = gfxShape->m_indices->at(i+1);
int index2 = gfxShape->m_indices->at(i+2);
btVector3 v0(gfxShape->m_vertices->at(index0).xyzw[0],
gfxShape->m_vertices->at(index0).xyzw[1],
gfxShape->m_vertices->at(index0).xyzw[2]);
btVector3 v1(gfxShape->m_vertices->at(index1).xyzw[0],
gfxShape->m_vertices->at(index1).xyzw[1],
gfxShape->m_vertices->at(index1).xyzw[2]);
btVector3 v2(gfxShape->m_vertices->at(index2).xyzw[0],
gfxShape->m_vertices->at(index2).xyzw[1],
gfxShape->m_vertices->at(index2).xyzw[2]);
trimeshData->addTriangle(v0,v1,v2);
}
//btConvexHullShape* convexShape = new btConvexHullShape(&verts[0].x(),verts.size(),sizeof(btVector3));
btBvhTriangleMeshShape* shape = new btBvhTriangleMeshShape(trimeshData,true);//meshInterface);
btTransform startTrans;startTrans.setIdentity();
btRigidBody* body = this->createRigidBody(0,startTrans,shape);
//gfxBridge.createCollisionShapeGraphicsObject(shape);
btVector3 color(0,0,1);
*/
//gfxBridge.createRigidBodyGraphicsObject(body,color);
}
}
