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import {Colour} from './Colour';
import {Framebuffer} from './Framebuffer';
import {Plane, Sphere} from './Geometry';
import {Light} from './Light';
import {Albedo, Material} from './Material';
import {RaytraceDispatcher} from './RaytraceDispatcher';
import {RaytraceContext, RaytracerOptions} from './RaytraceContext';
import {Vector} from './Vector';
import {Logger} from './Logger';
function render() {
getRenderButton().classList.add('loading');
const dispatcher = initDispatcher(parseOptions());
dispatcher.requestRender();
}
function initDispatcher(options: RaytracerOptions): RaytraceDispatcher {
const {width, height} = parseResolution();
const fov = Math.PI / 3;
const framebuffer = new Framebuffer(width, height);
const matWhite = new Material(
new Colour(102, 102, 77),
new Albedo(0.6, 0.3, 0.1, 0.0),
50,
1
);
const matRed = new Material(
new Colour(77, 26, 26),
new Albedo(0.9, 0.1, 0.0, 0.0),
10,
1
);
const matMirror = new Material(
new Colour(193, 193, 193),
new Albedo(0.0, 10, 0.8, 0.0),
1000,
1
);
const matGreen = new Material(
new Colour(77, 255, 26),
new Albedo(0.3, 0.1, 0.0, 0.0),
2,
1
);
const matGlass = new Material(
new Colour(153, 179, 204),
new Albedo(0.0, 0.5, 0.1, 0.8),
125,
1.5
);
const spheres = [
new Sphere(2, new Vector(-3, 0, -16), matWhite),
new Sphere(2, new Vector(-1, -1.5, -12), matGlass),
new Sphere(3, new Vector(1.5, -0.5, -18), matRed),
new Sphere(4, new Vector(7, 5, -18), matMirror),
];
const planes = [new Plane(-4, 10, -10, -30, 0.7)];
const lights = [
new Light(new Vector(-20, 20, 20), 1.5),
new Light(new Vector(30, 50, -25), 1.8),
new Light(new Vector(30, 20, 30), 1.7),
];
const context = new RaytraceContext(
height,
width,
fov,
spheres,
planes,
lights,
options
);
return new RaytraceDispatcher(
framebuffer,
context,
new Logger(),
onRenderComplete
);
}
function parseOptions(): RaytracerOptions {
return {
numThreads: getDesiredThreadCount(),
shadows: getInputElement('shadows-toggle').checked,
diffuseLighting: getInputElement('diffuse-toggle').checked,
specularLighting: getInputElement('specular-toggle').checked,
reflections: getInputElement('reflections-toggle').checked,
refractions: getInputElement('refractions-toggle').checked,
maxRecurseDepth: 5,
maxDrawDistance: 1000,
bufferDrawCalls: getInputElement('buffer-draw').checked,
directMemoryTransfer: getInputElement('direct-transfer').checked,
};
}
function parseResolution(): {width: number; height: number} {
switch (getInputElement('res').value) {
case '720p':
default:
return {width: 960, height: 720};
case '1080p':
return {width: 1440, height: 1080};
case '1440p':
return {width: 1920, height: 1440};
case '4k':
return {width: 2880, height: 2160};
case '8k':
return {width: 5760, height: 4320};
}
}
function registerEventListeners() {
getRenderButton().addEventListener('click', render);
document.getElementById('view-full')!.addEventListener('click', () => {
const canvas = document.getElementById(
'render-output'
) as HTMLCanvasElement;
window.open()!.document.body.innerHTML = `<img src=${canvas.toDataURL()}>`;
});
const threadsSlider = getInputElement('threads');
threadsSlider.addEventListener('input', () => {
getInputElement('threads-value').textContent = threadsSlider.value;
});
const threadToggle = getInputElement('enable-threads-toggle');
threadToggle.addEventListener('change', () => {
threadsSlider.disabled = !threadToggle.checked;
});
}
function getDesiredThreadCount(): number {
if (getInputElement('enable-threads-toggle').checked) {
return Number.parseInt(getInputElement('threads').value);
} else {
return 1;
}
}
function onRenderComplete() {
getRenderButton().classList.remove('loading');
}
function getRenderButton(): HTMLElement {
return document.getElementById('render')!;
}
function getInputElement(elementId: string) {
return document.getElementById(elementId) as HTMLInputElement;
}
document.addEventListener('DOMContentLoaded', () => {
registerEventListeners();
render();
});
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