remotion-image-video-masking

name	remotion-image-video-masking
description	Workflow for creating advanced masking effects in Remotion using layered compositions, image/video masking, text occlusion, and frame-based animation systems.

Remotion Image & Video Masking

Overview

This skill enables Claude to create advanced masking and layering effects in Remotion where text, images, and videos interact dynamically through composition-based masking techniques.

The workflow focuses on:

• image masking
• video masking
• layered compositions
• text occlusion effects
• depth simulation
• cinematic transitions
• frame-based masking animations

The goal is to create visually engaging scenes where elements appear naturally layered, such as text moving behind foreground objects or videos blending seamlessly through animated masks.

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Setup

Before starting:

1. Install Node.js: https://nodejs.org

2. Verify installation:

node -v
npm -v

3. Create a Remotion project:

npm init video

4. Start development server:

npm run dev

5. Open the project in VS Code.

Recommended tools:

• VS Code
• Remotion Preview
• React knowledge
• Image editing software (optional)
• PNG assets with transparency

Recommended extensions:

• ES7 React snippets
• Prettier

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Inputs Required

• Foreground images or videos
• Background assets
• Text overlays
• Video clips
• Animation timing information

Optional:

• Transparent PNG assets
• Alpha masks
• Branding assets
• Motion references

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When to Use This Skill

Use this skill when:

• creating cinematic motion graphics
• building startup launch videos
• designing layered text animations
• simulating depth in scenes
• creating premium-looking transitions
• developing social media motion content
• building visually dynamic compositions

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When NOT to Use

Do NOT use this skill for:

• static graphic design
• simple subtitle overlays
• non-animated compositions
• basic slideshow workflows
• projects without layered visual interaction

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Example Use Case

Create a startup launch video where animated text moves behind product screenshots and video layers.

Claude should:

1. Separate foreground and background layers
2. Position masked image assets above text
3. Animate text frame-by-frame
4. Maintain clean depth illusion
5. Synchronize masking effects with scene timing
6. Ensure smooth rendering consistency

Final result should:

• feel cinematic
• create convincing depth
• maintain smooth motion
• preserve readability
• render consistently across frames

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Core Masking Principles

1. Layer Ordering Controls Depth

Masking in Remotion depends heavily on visual layer ordering.

Foreground layers should:

• sit above text
• preserve occlusion illusion
• create depth separation

Typical structure:

Background
↓
Animated Text
↓
Foreground Image/Video

Correct layer ordering creates:

• cinematic depth
• realistic occlusion
• stronger visual hierarchy

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2. Use Transparent Assets Whenever Possible

PNG assets with transparency improve masking flexibility.

Best use cases:

• product cutouts
• character renders
• foreground objects
• isolated UI elements

Transparent assets make it easier to:

• hide text partially
• simulate depth
• create smooth transitions

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3. Animate Everything Frame-by-Frame

All masking motion should derive from:

• useCurrentFrame()
• interpolation
• spring systems

Avoid:

• CSS transitions
• browser animation systems
• uncontrolled movement

Preferred APIs:

• useCurrentFrame()
• spring()
• interpolate()

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4. Preserve Layout Stability

Masking effects often create layout instability if dimensions change during animation.

Claude should proactively prevent:

• jumping text
• resizing elements
• unstable layer positioning
• clipping artifacts

Recommended strategies:

• fixed containers
• stable positioning
• controlled transforms
• isolated animation layers

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5. Use Motion to Enhance Depth

Motion should reinforce layering.

Examples:

• foreground moves slower than background
• text slides beneath objects
• masked elements reveal gradually
• layered parallax effects

Good motion design improves:

• visual clarity
• cinematic feel
• scene engagement

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Workflow

1. Plan Scene Depth

Start by identifying:

• foreground elements
• background layers
• animated text regions
• masking interactions

Define:

• which objects should hide text
• where depth transitions occur
• how motion supports layering

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2. Organize Composition Structure

Separate layers clearly:

Example structure:

components/
  Background.tsx
  Foreground.tsx
  AnimatedText.tsx

Benefits:

• easier debugging
• reusable masking logic
• cleaner animation structure

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3. Create Foreground Masks

Use:

• transparent PNGs
• cropped video layers
• isolated foreground elements

Position foreground layers above animated text.

This creates:

• hidden text effects
• depth simulation
• cinematic layering

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4. Animate Text & Layers

Use:

• useCurrentFrame()
• spring()
• interpolation

Example animation goals:

• text sliding behind objects
• layered reveals
• cinematic transitions
• depth-enhancing motion

Preferred motion style:

• smooth
• controlled
• deterministic

Avoid:

• sudden jumps
• uncontrolled easing
• browser-dependent transitions

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5. Synchronize Scene Timing

Ensure:

• masking aligns with motion
• transitions remain readable
• visual hierarchy stays clear

Subtitle timing and masking timing should remain synchronized frame-by-frame.

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6. Validate Rendering Quality

Before export validate:

• masking alignment
• layer ordering
• text readability
• motion smoothness
• layout stability

Check frame-by-frame for:

• clipping issues
• unstable positioning
• visual artifacts

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7. Render Final Video

Render output:

npm run build

or:

npx remotion render

Preferred export:

• MP4
• high bitrate for masking-heavy scenes

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Output Expectations

The final output should include:

• cinematic masking effects
• smooth layered motion
• stable compositions
• convincing depth simulation
• production-ready rendered video

The workflow itself should remain:

• reusable
• modular
• render-safe
• maintainable

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Execution Strategy (for AI agents)

The agent should:

1. Structure scenes around visual depth
2. Maintain clear layer hierarchy
3. Use masking to enhance storytelling
4. Animate all motion frame-by-frame
5. Preserve layout stability during transitions
6. Validate rendering consistency before export

The workflow should optimize for:

• cinematic quality
• visual clarity
• motion smoothness
• rendering consistency
• scene readability

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Best Practices

• Keep foreground layers clean and isolated
• Use transparent assets whenever possible
• Avoid cluttered masking compositions
• Validate scenes frame-by-frame
• Keep motion smooth and intentional
• Maintain readability during masking
• Reuse layered animation patterns

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Notes

• Layer ordering is critical for convincing masking effects
• Transparent assets significantly improve flexibility
• Stable layouts improve cinematic quality
• Subtle masking often looks better than aggressive effects
• Motion design strongly affects depth perception