13. Where Next? — High-Quality Version

WARNING

This page takes a long time to render. After pressing the button, expect roughly 5–10 minutes in WASM (browser) (hardware-dependent). The screen will appear frozen during rendering — this is normal.

← Back to standard version (13 Where Next?)

Differences from the Standard Version

	Standard (13.md)	High-quality (this page)
Resolution	300 × 169	600 × 400
Samples/px	30	100
Grid	22 × 10 (a: -11..11, b: -5..5)	22 × 22 (a: -11..11, b: -11..11)
Estimated time (WASM)	5–10 seconds	5–10 minutes

The high-quality version uses the full 22×22 grid from the original book, placing more small spheres deep into the scene.

Implementation Difference

r113-final-scene-hq only changes the grid loop range — everything else is identical to r113-final-scene.

// Standard version: 22 × 10
for a in -11..11 {
    for b in -5..5 {

// High-quality version: 22 × 22 (same as the original book)
for a in -11..11 {
    for b in -11..11 {

The resolution and sample count differences are simply different constants at the top of render_image().

// Standard version
let image_width = 300_i32;
let samples_per_pixel = 30_i32;

// High-quality version
let image_width = 600_i32;
let samples_per_pixel = 100_i32;