THREE.JS / WEBGL2 MSAA

Resolve the difference.

The pinned source compares a default WebGLRenderTarget with an EffectComposer backed by a four-sample WebGLRenderTarget. The left and right views share one scene and are composed through explicit scissor halves.

Initializing—

Creating the paired EffectComposer and multisampled renderbuffer paths.

backend
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left view
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right view
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samples
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targets
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paired meshes
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scissor
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sample
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builds
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Selected source contractEffectComposer(default) ∥ EffectComposer(WebGLRenderTarget samples=4, HalfFloatType) → setScissor halves

Both composers render the same 50-sphere scene; the right composer resolves through the multisampled target while the left remains the single-sample baseline.

Derived from the pinned WebGL Multisampled Renderbuffers example. The lab uses deterministic sphere placement and observable lifecycle controls; exact random placement, GUI/Stats presentation, pixel parity, and whole-example fidelity remain separate.