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https://github.com/vonhyou/ray-tracer-comp371.git
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25 lines
664 B
C++
25 lines
664 B
C++
#include "simpleppm.h"
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/*
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This code was adapted from here:
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https://rosettacode.org/wiki/Bitmap/Write_a_PPM_file#C.2B.2B
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*/
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using namespace std;
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int save_ppm(std::string file_name, const std::vector<double>& buffer, int dimx, int dimy) {
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ofstream ofs(file_name, ios_base::out | ios_base::binary);
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ofs << "P6" << endl << dimx << ' ' << dimy << endl << "255" << endl;
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for (unsigned int j = 0; j < dimy; ++j)
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for (unsigned int i = 0; i < dimx; ++i)
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ofs << (char) (255.0 * buffer[3*j*dimx+3*i+0]) << (char) (255.0 * buffer[3*j*dimx+3*i+1]) << (char) (255.0 * buffer[3*j*dimx+3*i+2]);
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ofs.close();
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return 0;
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}
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