`react-doctor/three-webgpu-no-legacy-effect-composer`

Legacy EffectComposer used with WebGPURenderer

Category: Bugs
Severity: error
Source: oxlint-plugin-react-doctor
Framework: global
Enabled when: three
Tags: three, webgl
Default: Enabled

Validate the diagnostic

Confirm the reported code matches this rule before you edit it.

Confirm the reported code matches react-doctor/three-webgpu-no-legacy-effect-composer. Compare it with the Before example and verify the same API, framework, and execution context. Treat it as a false positive only when one of those conditions differs.

Compare the code

The corrected pattern shows a focused way to address the diagnostic.

Reported pattern

import { WebGPURenderer } from "three/webgpu";
import { BloomPass } from "three/addons/postprocessing/BloomPass.js";
import { EffectComposer } from "three/addons/postprocessing/EffectComposer.js";
import { RenderPass } from "three/addons/postprocessing/RenderPass.js";
const renderer = new WebGPURenderer();
const composer = new EffectComposer(renderer);
composer.addPass(new RenderPass(scene, camera));
composer.addPass(new BloomPass());

Corrected pattern

import { RenderPipeline, WebGPURenderer } from "three/webgpu";
import { pass } from "three/tsl";
import { bloom } from "three/addons/tsl/display/BloomNode.js";
const renderer = new WebGPURenderer();
const scenePass = pass(scene, camera);
const sceneColor = scenePass.getTextureNode("output");
const renderPipeline = new RenderPipeline(renderer);
renderPipeline.outputNode = sceneColor.add(bloom(sceneColor));

How to fix

Use the corrected pattern as a reference. Preserve behavior that the rule does not require you to change.

Copyable fix prompt

Copy this self-contained prompt into your coding agent after you confirm the diagnostic.

Fix every confirmed react-doctor/three-webgpu-no-legacy-effect-composer diagnostic in the current repository. Required change: - Use WebGPURenderer's node-based post-processing pipeline instead of the legacy WebGL EffectComposer.

Reference transformation:Before:

import { WebGPURenderer } from "three/webgpu";
import { BloomPass } from "three/addons/postprocessing/BloomPass.js";
import { EffectComposer } from "three/addons/postprocessing/EffectComposer.js";
import { RenderPass } from "three/addons/postprocessing/RenderPass.js";
const renderer = new WebGPURenderer();
const composer = new EffectComposer(renderer);
composer.addPass(new RenderPass(scene, camera));
composer.addPass(new BloomPass());

After:

import { RenderPipeline, WebGPURenderer } from "three/webgpu";
import { pass } from "three/tsl";
import { bloom } from "three/addons/tsl/display/BloomNode.js";
const renderer = new WebGPURenderer();
const scenePass = pass(scene, camera);
const sceneColor = scenePass.getTextureNode("output");
const renderPipeline = new RenderPipeline(renderer);
renderPipeline.outputNode = sceneColor.add(bloom(sceneColor));

Constraints: - Confirm the reported code matches the Before pattern. - Make the smallest change that fixes the root cause. - Preserve behavior and interfaces unrelated to this diagnostic. - Reuse existing project components, utilities, and conventions. - Do not introduce render-phase side effects, render-phase state updates, or Hooks rule violations. - Adapt identifiers and framework details instead of copying blindly. - Do not disable the rule or suppress matching code. - Confirm this rule is enabled for the project: three. Verification: - Run focused tests for the changed behavior. - Run React Doctor and confirm this diagnostic no longer appears. - Report the files changed and any checks you could not run.

More Bugs rules from the rules reference:

react-doctor/three-webgpu-no-legacy-material-api: Legacy material API used with WebGPURenderer
react-doctor/valtio-no-proxy-read-in-render: Valtio proxy read during render
react-doctor/valtio-no-snapshot-in-callback: Valtio snapshot read in a callback
react-doctor/void-dom-elements-no-children: Remove children from the void element, or use a non-void element if children are needed.
react-doctor/waapi-animation-in-render: Web Animation starts during render

react-doctor/three-webgpu-no-legacy-effect-composer