v4games
/
assimp
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Debugging ColladaExporter function for writing header information

pull/261/head
Léo Terziman 2013-10-09 11:14:09 +02:00
parent 3317f667e5
commit a940102d70
1 changed files with 31 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
code/ColladaExporter.cpp
View File

@ -115,45 +115,59 @@ void ColladaExporter::WriteFile()
mOutput << "</COLLADA>" << endstr;
}
// ------------------------------------------------------------------------------------------------
// Utility function to test equality of scalars and quaternions
inline bool equal(double a, double b, double epsilon) {
return std::abs(a - b) <= epsilon;
}
inline bool equal(aiQuaternion a, aiQuaternion b, double epsilon) {
return equal(a.x, b.x, epsilon) && equal(a.y, b.y, epsilon) && equal(a.z, b.z, epsilon) && equal(a.w, b.w, epsilon);
}
// ------------------------------------------------------------------------------------------------
// Writes the asset header
void ColladaExporter::WriteHeader()
{
static const double epsilon = 0.000001;
static const aiQuaternion x_rot(aiMatrix3x3(
0, -1, 0,
1, 0, 0,
0, 0, 1));
static const aiQuaternion y_rot(aiMatrix3x3(
1, 0, 0,
0, 1, 0,
0, 0, 1));
static const aiQuaternion z_rot(aiMatrix3x3(
1, 0, 0,
0, 0, 1,
0, -1, 0));
static const unsigned int date_nb_chars = 20;
char date_str[date_nb_chars];
std::time_t date = std::time(NULL);
std::strftime(date_str, date_nb_chars, "%Y-%m-%dT%H:%M:%S", std::localtime(&date));
std::string scene_name = mScene->mRootNode->mName.C_Str();
aiVector3D scaling;
aiQuaternion rotation;
aiVector3D position;
mScene->mRootNode->mTransformation.Decompose(scaling, rotation, position);
std::string scene_name = mScene->mRootNode->mName.C_Str();
float scale = 1.0;
if(scaling.x == scaling.y && scaling.x == scaling.z) {
if(equal(scaling.x, scaling.y, epsilon) && equal(scaling.x, scaling.z, epsilon) && equal(scaling.y, scaling.z, epsilon)) {
scale = scaling.x;
} else {
DefaultLogger::get()->warn("Collada: Unable to compute the global scale of the scene " + scene_name);
}
aiMatrix3x3 rot_mat = rotation.GetMatrix();
std::string up_axis = "Y_UP";
if(rot_mat == aiMatrix4x4()) {
up_axis = "Y_UP";
} else if(rot_mat == aiMatrix4x4(
0, -1, 0, 0,
1, 0, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1)) {
if(equal(rotation, x_rot, epsilon)) {
up_axis = "X_UP";
} else if(rot_mat == aiMatrix4x4(
1, 0, 0, 0,
0, 0, 1, 0,
0, -1, 0, 0,
0, 0, 0, 1)) {
} else if(equal(rotation, y_rot, epsilon)) {
up_axis = "Y_UP";
} else if(equal(rotation, z_rot, epsilon)) {
up_axis = "Z_UP";
} else {
DefaultLogger::get()->warn("Collada: Unable to compute the up axis of the scene " + scene_name);
@ -163,7 +177,6 @@ void ColladaExporter::WriteHeader()
DefaultLogger::get()->warn("Collada: Unable to keep the global position of the scene " + scene_name);
}
// Dummy stuff. Nobody actually cares for it anyways
mOutput << startstr << "<asset>" << endstr;
PushTag();
mOutput << startstr << "<contributor>" << endstr;