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Added support for embedded textures to the FBXExporter (both binary and ASCII). Also made the FBX-namespaces more consistent (we had both Assimp::FBX:: and FBX::). Since we seem to support two types of embedded texture references (both asterisk+texture_id and filepath) I made the exporter use aiScene::GetEmbeddedTexture for looking up texture reference and integrated @loebl 's modification of the function to support the old ("*1") type of references (https://github.com/loebl/assimp/commit/e217358)

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This commit is contained in:
Matias
2019-05-09 14:50:22 +02:00
parent 9430696048
commit 575ef4d927
9 changed files with 130 additions and 20 deletions
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48
code/FBXExporter.cpp
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@@ -45,6 +45,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "FBXExportNode.h"
#include "FBXExportProperty.h"
#include "FBXCommon.h"
#include "FBXUtil.h"
#include <assimp/version.h> // aiGetVersion
#include <assimp/IOSystem.hpp>
@@ -73,7 +74,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
const ai_real DEG = ai_real( 57.29577951308232087679815481 ); // degrees per radian
using namespace Assimp;
using namespace Assimp::FBX;
// some constants that we'll use for writing metadata
namespace Assimp {
namespace FBX {
const std::string EXPORT_VERSION_STR = "7.4.0";
const uint32_t EXPORT_VERSION_INT = 7400; // 7.4 == 2014/2015
@@ -92,11 +97,6 @@ namespace FBX {
";------------------------------------------------------------------";
}
using namespace Assimp;
using namespace FBX;
namespace Assimp {
// ---------------------------------------------------------------------
// Worker function for exporting a scene to binary FBX.
// Prototyped and registered in Exporter.cpp
@@ -121,6 +121,7 @@ namespace Assimp {
IOSystem* pIOSystem,
const aiScene* pScene,
const ExportProperties* pProperties
){
// initialize the exporter
FBXExporter exporter(pScene, pProperties);
@@ -1393,10 +1394,6 @@ void FBXExporter::WriteObjects ()
// FbxVideo - stores images used by textures.
for (const auto &it : uid_by_image) {
if (it.first.compare(0, 1, "*") == 0) {
// TODO: embedded textures
continue;
}
FBX::Node n("Video");
const int64_t& uid = it.second;
const std::string name = ""; // TODO: ... name???
@@ -1406,7 +1403,38 @@ void FBXExporter::WriteObjects ()
// TODO: get full path... relative path... etc... ugh...
// for now just use the same path for everything,
// and hopefully one of them will work out.
const std::string& path = it.first;
std::string path = it.first;
// try get embedded texture
const aiTexture* embedded_texture = mScene->GetEmbeddedTexture(it.first.c_str());
if (embedded_texture != nullptr)
{
// change the path (use original filename, if available. If name is ampty, concatenate texture index with file extension)
std::stringstream newPath;
if (embedded_texture->mFilename.length > 0)
newPath << embedded_texture->mFilename.C_Str();
else if (embedded_texture->achFormatHint[0])
{
int texture_index = std::stoi(path.substr(1, path.size() - 1));
newPath << texture_index << "." << embedded_texture->achFormatHint;
}
path = newPath.str();
// embed the texture
size_t texture_size = static_cast<size_t>(embedded_texture->mWidth * std::max(embedded_texture->mHeight, 1u));
if (binary)
{
// embed texture as binary data
std::vector<uint8_t> tex_data;
tex_data.resize(texture_size);
memcpy(&tex_data[0], (char*)embedded_texture->pcData, texture_size);
n.AddChild("Content", tex_data);
}
else
{
// embed texture in base64 encoding
std::string encoded_texture = FBX::Util::EncodeBase64((char*)embedded_texture->pcData, texture_size);
n.AddChild("Content", encoded_texture);
}
}
p.AddP70("Path", "KString", "XRefUrl", "", path);
n.AddChild(p);
n.AddChild("UseMipMap", int32_t(0));