32 lines
759 B
C++
32 lines
759 B
C++
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#include <iostream>
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const int WIDTH = 256;
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const int HEIGHT = 256;
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int main()
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{
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std::cout << "P3" << std::endl;
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std::cout << WIDTH << ' ' << HEIGHT << "\n255\n";
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for (int y = HEIGHT - 1; y >= 0; --y)
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{
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std::cerr << "\rScanlines remaining: " << y << ' ' << std::flush;
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for (int x = 0; x < WIDTH; ++x)
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{
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double r = double(x) / (WIDTH - 1);
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double g = double(y) / (HEIGHT - 1);
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double b = 0.25;
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int ir = static_cast<int>(255.999 * r);
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int ig = static_cast<int>(255.999 * g);
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int ib = static_cast<int>(255.999 * b);
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std::cout << ir << ' ' << ig << ' ' << ib << std::endl;
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}
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}
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std::cerr << "\nDone." << std::endl;
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}
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