threepipe
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A 3D viewer framework built on top of three.js in TypeScript with a focus on quality rendering, modularity and extensibility.
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JavaScript
import { _testFinish, DepthBufferPlugin, downloadBlob, isWebpExportSupported, LoadingScreenPlugin, ThreeViewer, UnsignedByteType, } from 'threepipe';
import { createSimpleButtons } from '../examples-utils/simple-bottom-buttons.js';
const viewer = new ThreeViewer({
canvas: document.getElementById('mcanvas'),
rgbm: false, // this will make the composer target not use RGBM encoding, and use HalfFloat. Otherwise, its UnsignedByteType
plugins: [LoadingScreenPlugin],
});
async function init() {
const depthPlugin = viewer.addPluginSync(DepthBufferPlugin, UnsignedByteType);
await viewer.setEnvironmentMap('https://threejs.org/examples/textures/equirectangular/venice_sunset_1k.hdr');
await viewer.load('https://threejs.org/examples/models/gltf/kira.glb', {
autoCenter: true,
autoScale: true,
});
const composerBuffer = viewer.renderManager.composerTarget;
const depthBuffer = depthPlugin.target;
async function downloadTarget(target, type = '') {
const blob = await viewer.export(target, { exportExt: type });
if (blob)
downloadBlob(blob, target.texture.name + '.' + blob.ext);
else
alert('Unable to get screenshot');
}
createSimpleButtons({
['Download composer (EXR)']: async (btn) => {
btn.disabled = true;
await downloadTarget(composerBuffer); // default for Float and HalfFloat buffers is EXR.
btn.disabled = false;
},
// UnsignedByte targets can only be exported in webp, png, jpeg format.
['Download depth (PNG)']: async (btn) => {
btn.disabled = true;
await downloadTarget(depthBuffer); // default for UnsignedByte buffers is PNG.
btn.disabled = false;
},
['Download depth (JPEG)']: async (btn) => {
btn.disabled = true;
await downloadTarget(depthBuffer, 'jpeg');
btn.disabled = false;
},
// HalfFloat targets can also be exported in webp, png, jpeg format, but they will be clamped
['Download composer (WEBP)']: async (btn) => {
btn.disabled = true;
if (!isWebpExportSupported()) {
alert('WebP export is not supported in this browser, try the latest version of chrome, firefox or edge.');
btn.disabled = false;
return;
}
await downloadTarget(composerBuffer, 'webp');
btn.disabled = false;
},
});
}
init().finally(_testFinish);