celestia/src/tools/cmod/3dstocmod/3dstocmod.cpp

80 lines
1.9 KiB
C++

// 3dstocmod.cpp
//
// Copyright (C) 2004-2010, Chris Laurel <claurel@gmail.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// Convert a 3DS file to a Celestia mesh (.cmod) file
#include <iostream>
#include <memory>
#include <string>
#include <cel3ds/3dsread.h>
#include <celmath/mathlib.h>
#include "cmodops.h"
#include "convert3ds.h"
#include "pathmanager.h"
void usage()
{
std::cerr << "Usage: 3dstocmod <input 3ds file>\n";
}
int main(int argc, char* argv[])
{
if (argc != 2)
{
usage();
return 1;
}
std::string inputFileName = argv[1];
std::cerr << "Reading...\n";
std::unique_ptr<M3DScene> scene = Read3DSFile(inputFileName);
if (scene == nullptr)
{
std::cerr << "Error reading 3DS file '" << inputFileName << "'\n";
return 1;
}
std::cerr << "Converting...\n";
std::unique_ptr<cmod::Model> model = Convert3DSModel(*scene, GetPathManager()->getHandle);
if (!model)
{
std::cerr << "Error converting 3DS file to Celestia model\n";
return 1;
}
// Generate normals for the model
float smoothAngle = 45.0; // degrees
double weldTolerance = 1.0e-6;
bool weldVertices = true;
model = GenerateModelNormals(*model, celmath::degToRad(smoothAngle), weldVertices, weldTolerance);
if (!model)
{
std::cerr << "Ran out of memory while generating surface normals.\n";
return 1;
}
// Automatically uniquify vertices
for (unsigned int i = 0; model->getMesh(i) != nullptr; i++)
{
cmod::Mesh* mesh = model->getMesh(i);
UniquifyVertices(*mesh);
}
SaveModelAscii(model.get(), std::cout, GetPathManager()->getSource);
return 0;
}