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write a ppm image

Kanishk Dhindsa answered on May 20, 2022 Popularity 3/10 Helpfulness 1/10

answer write a ppm image

write a ppm image

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#include <iostream>

int main() {

    // Image

    const int image_width = 256;
    const int image_height = 256;

    // Render

    std::cout << "P3\n" << image_width << ' ' << image_height << "\n255\n";

    for (int j = image_height-1; j >= 0; --j) {
        for (int i = 0; i < image_width; ++i) {
            auto r = double(i) / (image_width-1);
            auto g = double(j) / (image_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';
        }
    }
}

Popularity 3/10 Helpfulness 1/10 Language c

Source: raytracing.github.io

Tags: c image ppm

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