diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..2cd66a9 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,37 @@ +#include <iostream> + +int main() { + size_t width = 256; + size_t height = 256; + + // PPM format header + std::cout << "P3" << std::endl; + + std::cout << width << std::endl; + std::cout << height << std::endl; + + // Max color + std::cout << "255" << std::endl; + + std::cerr << "Generating image" << std::endl; + + for (size_t column = 0; column < width; column++) { + std::cerr << width - column << " lines remaining" << std::endl; + + for (size_t row = 0; row < height; row++) { + auto r = double(column) / (width-1); + auto g = double(row) / (height-1); + auto b = 0.25; + + int ir = static_cast<int>(255.999 * r); + int ig = static_cast<int>(255.999 * g); + int ib = static_cast<int>(255.999 * b); + + std::cout << ir << ' ' << ig << ' ' << ib << '\n'; + } + } + + std::cerr << "Done !" << std::endl; + + return 0; +} |
