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name: threejs-postprocessing description: Three.js post-processing - EffectComposer, bloom, DOF, screen effects. Use when adding visual effects, color grading, blur, glow, or creating custom screen-space shaders. risk: critical source: community date_added: "2026-09-04"

Three.js Post-Processing

Detailed Guide

Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely.

When to Use

• You need screen-space visual effects in a Three.js render pipeline.
• The task involves EffectComposer, bloom, depth of field, color grading, blur, or custom passes.
• You are enhancing the final rendered image rather than base scene setup alone.

Limitations

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.