How do I install the Threejs Temporal Surfaces skill?

Run npx skillmds@latest add gabrielmoreira/threejs-temporal-surfaces in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Threejs Temporal Surfaces safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Threejs Temporal Surfaces?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Threejs Temporal Surfaces free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Threejs Temporal Surfaces?

gabrielmoreira (@gabrielmoreira) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Threejs Temporal Surfaces by gabrielmoreira

Name: Threejs Temporal Surfaces
Rating: 4.2 (5 reviews)
Author: gabrielmoreira

Threejs Temporal Surfaces

Build view-aligned and screen-space surface effects in Three.js. Use for touch-history frost and thaw, ping-pong accumulation, reduced-resolution blur, crystalline masks, two-scale refraction, and procedural rain droplets that refract and blur a background through wet glass.

gabrielmoreira Updated Sep 9, 2026 17 repo stars

File contents

Temporal Surfaces

Choose persistent history or procedural screen-space evolution explicitly. Do not fake accumulation with time-only noise, and do not allocate history for an effect whose complete state is analytic in time.

This skill contains exemplary examples and assets beyond descriptive guidance, they're worth studying, referencing, or even copying. Use them sufficiently when relevant and do NOT blindly skip them.

Pipeline

persistent surface: input -> ping-pong state -> blur -> structure -> refraction
procedural surface: time/coverage -> analytic field -> optical normal -> refraction/blur

Read references/ping-pong-accumulation.md for an exact frost pass graph, pointer-history channels, blur and refraction coupling, and implementation defects that must be corrected.

Read the touch-history frost implementation for the previous/deposit/next state transition, reduced blur, static structures, frost-mask composition, and two-scale refraction.

Read references/refractive-window-rain.md and the refractive window rain implementation for layered static and travelling droplets, finite-difference optical normals, background refraction, stochastic disc blur, aspect fill, and presentation.

Rules

Separate persistent state, analytic procedural state, and scene color.
Preserve separate visible-mask and tilt-response channels.
Use half-float for this history path unless a measured lower format is equivalent.
Convert per-frame history decay to frame-rate-independent decay.
Run the two-pass scene blur at reduced resolution.
Pre-render static procedural textures once.
Define and test resize/reset behavior for both history targets and static targets.
Do not route world footprints, object-UV paint, or simulation-plane wetness here; this skill is view-aligned or screen-space.

Routing boundary

Use $threejs-procedural-vfx for world- or object-space residue and particles. Use $threejs-precipitation-surfaces for world-space rain, puddles, snow, and weather-surface coupling. Use $threejs-procedural-materials when a body must transmit its surroundings through its own volume rather than through a screen-aligned pane. This skill owns view-aligned wet-glass optics and screen-space persistent history.

---name: threejs-temporal-surfacesdescription: Build view-aligned and screen-space surface effects in Three.js. Use for touch-history frost and thaw, ping-pong accumulation, reduced-resolution blur, crystalline masks, two-scale refraction, and procedural rain droplets that refract and blur a background through wet glass.--- # Temporal Surfaces Choose persistent history or procedural screen-space evolution explicitly. Do not fake accumulation with time-only noise, and do not allocate history for an effect whose complete state is analytic in time. This skill contains exemplary examples and assets beyond descriptive guidance, they're worth studying, referencing, or even copying. Use them sufficiently when relevant and do NOT blindly skip them. ## Pipeline ```text persistent surface: input -> ping-pong state -> blur -> structure -> refraction procedural surface: time/coverage -> analytic field -> optical normal -> refraction/blur ``` Read [references/ping-pong-accumulation.md](references/ping-pong-accumulation.md) for an exact frost pass graph, pointer-history channels, blur and refraction coupling, and implementation defects that must be corrected. Read the [touch-history frost implementation](examples/touch-history-frost/frost-surface-effect.js) for the previous/deposit/next state transition, reduced blur, static structures, frost-mask composition, and two-scale refraction. Read [references/refractive-window-rain.md](references/refractive-window-rain.md) and the [refractive window rain implementation](examples/refractive-window-rain/window-rain-effect.js) for layered static and travelling droplets, finite-difference optical normals, background refraction, stochastic disc blur, aspect fill, and presentation. ## Rules - Separate persistent state, analytic procedural state, and scene color. - Preserve separate visible-mask and tilt-response channels. - Use half-float for this history path unless a measured lower format is equivalent. - Convert per-frame history decay to frame-rate-independent decay. - Run the two-pass scene blur at reduced resolution. - Pre-render static procedural textures once. - Define and test resize/reset behavior for both history targets and static targets. - Do not route world footprints, object-UV paint, or simulation-plane wetness here; this skill is view-aligned or screen-space. ## Routing boundary Use `$threejs-procedural-vfx` for world- or object-space residue and particles. Use `$threejs-precipitation-surfaces` for world-space rain, puddles, snow, and weather-surface coupling. Use `$threejs-procedural-materials` when a body must transmit its surroundings through its own volume rather than through a screen-aligned pane. This skill owns view-aligned wet-glass optics and screen-space persistent history.

Frequently asked questions