57 lines
1.8 KiB
Markdown
57 lines
1.8 KiB
Markdown
# rsrt
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A raytracer built using https://raytracing.github.io as a follow up to my last attempt back in 2020 https://github.com/EliseZeroTwo/rs-ytrace/.
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## Renders
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### 2024-06-29
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A slightly modified version of the cover of the first book "Ray Tracing in One Weekend".
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```rs
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let mut builder = Raytracer::builder()
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.image_size(3840, 2160)
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.samples_per_pixel(500)
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.max_depth(50)
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.vertical_fov(20.0)
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.look_from(13.0, 2.0, 3.0)
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.look_at(0.0, 0.0, 0.0)
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.vup(0.0, 1.0, 0.0)
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.defocus_angle(0.6)
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.focus_dist(10.0)
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.with_sphere(0.0, -1000.0, 0.0, 1000.0)
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.lambertian(1.0, 0.6, 0.7);
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for a in -11..11 {
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for b in -11..11 {
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let choose_mat = random_f64();
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let center = Point3::new(a as f64 + 0.9 * random_f64(), 0.2, b as f64 + 0.9 * random_f64());
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if (center - Point3::new(4.0, 0.2, 0.0)).len() > 0.9 {
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let shape_builder = builder.with_sphere(center.x(), center.y(), center.z(), 0.2);
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builder = if choose_mat < 0.8 {
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let albedo = Color::random() * Color::random();
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shape_builder.lambertian(albedo.r(), albedo.g(), albedo.b())
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} else if choose_mat < 0.95 {
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let albedo = Color::random_range(0.5, 1.0);
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let fuzz = random_f64_range(0.0, 0.5);
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shape_builder.metal(albedo.r(), albedo.g(), albedo.b(), fuzz)
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} else {
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shape_builder.dielectric(1.5)
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};
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}
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}
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}
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let raytracer = builder
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.with_sphere(0.0, 1.0, 0.0, 1.0)
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.dielectric(1.5)
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.with_sphere(-4.0, 1.0, 0.0, 1.0)
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.lambertian(1.0, 0.5, 0.6)
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.with_sphere(4.0, 1.0, 0.0, 1.0)
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.metal(0.7, 0.6, 0.5, 0.0)
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.finish();
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``` |