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, downloadBlob, HalfFloatType, LoadingScreenPlugin, NoColorSpace, NormalBufferPlugin, RenderTargetPreviewPlugin, SRGBColorSpace, ThreeViewer, } from 'threepipe';
import { createSimpleButtons } from '../examples-utils/simple-bottom-buttons.js';
const viewer = new ThreeViewer({
canvas: document.getElementById('mcanvas'),
plugins: [LoadingScreenPlugin],
});
async function init() {
const normalPlugin = viewer.addPluginSync(new NormalBufferPlugin(HalfFloatType));
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 normalTarget = normalPlugin.target;
if (!normalTarget) {
throw new Error('normalPlugin.target returned undefined');
}
viewer.renderManager.screenPass.overrideReadBuffer = normalTarget;
viewer.renderManager.screenPass.outputColorSpace = NoColorSpace; // default is SRGBColorSpace
const targetPreview = await viewer.addPlugin(RenderTargetPreviewPlugin);
targetPreview.addTarget(() => normalTarget, 'normal');
createSimpleButtons({
['Toggle Normal rendering']: () => {
const state = !!viewer.renderManager.screenPass.overrideReadBuffer;
viewer.renderManager.screenPass.overrideReadBuffer = state ? null : normalTarget;
viewer.renderManager.screenPass.outputColorSpace = state ? SRGBColorSpace : NoColorSpace;
viewer.setDirty();
},
['Download snapshot']: async (btn) => {
btn.disabled = true;
const blob = await viewer.getScreenshotBlob({ mimeType: 'image/png' });
if (blob)
downloadBlob(blob, 'file.png');
else
console.error('Unable to get screenshot');
btn.disabled = false;
},
});
}
init().finally(_testFinish);