Backgrounds fill the frame and move slowly enough to stay behind your content. Put one first inside an AbsoluteFill and layer the scene on top.

Animated Noise Grain

npx remotion-ui@latest add animated-noise-grain

Aurora Background

npx remotion-ui@latest add aurora-bg

Caustics Background

npx remotion-ui@latest add caustics-bg

Dynamic Grid

npx remotion-ui@latest add dynamic-grid

Light Rays

npx remotion-ui@latest add light-rays

Mesh Gradient Background

npx remotion-ui@latest add mesh-gradient-bg

Particle Field

npx remotion-ui@latest add particle-field

Topographic Lines Background

npx remotion-ui@latest add topographic-lines-bg