threejs-postprocessing

Bloom is a screen-space effect that makes bright areas of a Three.js scene glow. You apply it by adding a bloom pass to EffectComposer after the base RenderPass to enhance light sources and emissive materials.

Yes, you can apply selective bloom to specific objects by assigning them to unique layers. EffectComposer renders those layers separately to isolate the glow effect without affecting the entire scene.

The correct EffectComposer pass order starts with RenderPass, followed by effect passes like bloom, SSAO, and depth of field, then anti-aliasing passes like FXAA or SMAA, and finally an OutputPass.

You handle resize events for post-processing by calling the setSize method on both the renderer and EffectComposer. This ensures chained passes like bloom and ShaderPass adjust their internal render targets.

Yes, EffectComposer supports custom screen-space shaders through ShaderPass. You can author custom GLSL shaders for color grading, stylistic distortions, and film grain within the post-processing pipeline.

FXAA and SMAA anti-aliasing work with Three.js post-processing by adding them as passes in EffectComposer. They smooth jagged edges in the final rendered image after other screen-space effects.