LESSON 05
Post-processing
A glowing torus knot fed through <EffectComposer> with three passes: Bloom (mipmap blur, threshold-driven), ChromaticAberration, and Vignette. Each parameter is bound to leva so you can feel the visual cost of each effect.
Post-processing is additive — the underlying scene is unchanged; effects compose on top of the rendered frame. Bloom pulls brightness above the luminance threshold and blurs it; chromatic aberration splits RGB by a sub-pixel offset; vignette darkens the corners.