Multi-Pass Live Lab

Edit the shaders below to see how Pass 1 flows into Pass 2 and forms the Final Composite.

Pass 1: Base Pattern

Generates high-contrast procedural shapes. Use vUv and u_time.

Pass 2: Bloom / Blur

Uses u_tex0 (the output of Pass 1) to create a blurred glow effect.

Final Composite: Neon Glow

Combines u_base (Pass 1) and u_bloom (Pass 2) using additive blending.