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add the ability to export cameras information in a collada file

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This commit is contained in:
wise86Android
2015-05-17 20:54:45 +02:00
parent a1268bf864
commit fb4eb83e84
4 changed files with 160 additions and 3 deletions
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64
code/ColladaExporter.cpp
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@@ -127,6 +127,7 @@ void ColladaExporter::WriteFile()
WriteTextures();
WriteHeader();
WriteCamerasLibrary();
WriteMaterials();
WriteGeometryLibrary();
@@ -286,6 +287,61 @@ void ColladaExporter::WriteTextures() {
}
}
// ------------------------------------------------------------------------------------------------
// Write the embedded textures
void ColladaExporter::WriteCamerasLibrary() {
if(mScene->HasCameras()) {
mOutput << startstr << "<library_cameras>" << endstr;
PushTag();
for( size_t a = 0; a < mScene->mNumCameras; ++a)
WriteCamera( a);
PopTag();
mOutput << startstr << "</library_cameras>" << endstr;
}
}
void ColladaExporter::WriteCamera(size_t pIndex){
const aiCamera *cam = mScene->mCameras[pIndex];
const std::string idstrEscaped = XMLEscape(cam->mName.C_Str());
mOutput << startstr << "<camera id=\"" << idstrEscaped << "-camera\" name=\"" << idstrEscaped << "_name\" >" << endstr;
PushTag();
mOutput << startstr << "<optics>" << endstr;
PushTag();
mOutput << startstr << "<technique_common>" << endstr;
PushTag();
//assimp doesn't support the import of orthographic cameras! se we write
//always perspective
mOutput << startstr << "<perspective>" << endstr;
PushTag();
mOutput << startstr << "<xfov sid=\"xfov\">"<<
AI_RAD_TO_DEG(cam->mHorizontalFOV)
<<"</xfov>" << endstr;
mOutput << startstr << "<aspect_ratio>"
<< cam->mAspect
<< "</aspect_ratio>" << endstr;
mOutput << startstr << "<znear sid=\"znear\">"
<< cam->mClipPlaneNear
<< "</znear>" << endstr;
mOutput << startstr << "<zfar sid=\"zfar\">"
<< cam->mClipPlaneFar
<< "</zfar>" << endstr;
PopTag();
mOutput << startstr << "</perspective>" << endstr;
PopTag();
mOutput << startstr << "</technique_common>" << endstr;
PopTag();
mOutput << startstr << "</optics>" << endstr;
PopTag();
mOutput << startstr << "</camera>" << endstr;
}
// ------------------------------------------------------------------------------------------------
// Reads a single surface entry from the given material keys
void ColladaExporter::ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex)
@@ -847,6 +903,9 @@ void ColladaExporter::WriteNode(aiNode* pNode)
mOutput << mat.d1 << " " << mat.d2 << " " << mat.d3 << " " << mat.d4;
mOutput << "</matrix>" << endstr;
if(pNode->mNumMeshes==0){
mOutput << startstr <<"<instance_camera url=\"#" << node_name_escaped << "-camera\">" << endstr;
}else
// instance every geometry
for( size_t a = 0; a < pNode->mNumMeshes; ++a )
{
@@ -854,9 +913,8 @@ void ColladaExporter::WriteNode(aiNode* pNode)
// do not instanciate mesh if empty. I wonder how this could happen
if( mesh->mNumFaces == 0 || mesh->mNumVertices == 0 )
continue;
mOutput << startstr << "<instance_geometry url=\"#" << XMLEscape(GetMeshId( pNode->mMeshes[a])) << "\">" << endstr;
PushTag();
mOutput << startstr << "<instance_geometry url=\"#" << XMLEscape(GetMeshId( pNode->mMeshes[a])) << "\">" << endstr;
PushTag();
mOutput << startstr << "<bind_material>" << endstr;
PushTag();
mOutput << startstr << "<technique_common>" << endstr;