After Effects capabilities
After Effects is powerful compositing software and the industry standard for motion graphics and visual effects. For complex projects requiring precise control, it remains the professional choice.
However, it requires a subscription ($23/month), significant learning investment, and capable hardware. For a single effect, the overhead may not be justified.
The traditional workflow
Creating the text-behind-subject effect in After Effects:
Import footage and create a mask layer. Trace around your subject frame by frame using pen tool or Roto Brush. Adjust the mask for every frame where the subject moves. Refine edges, particularly around hair and fine details. Place text between the masked layer and background.
Roto Brush automates some of this work but requires cleanup on most footage. The process for a 10-second clip typically takes 20-30 minutes for experienced editors.
The AI-based alternative
Depth estimation AI determines how far each pixel is from the camera, creating a depth map of your scene. Text is assigned a depth value and automatically occluded by anything closer to the camera.
This approach processes every frame automatically. No manual tracing or cleanup required.
Direct comparison
Testing the same 10-second clip with both methods:
After Effects (Roto Brush)
- Setup: 5 minutes
- Masking and cleanup: 20 minutes (subject had hair detail)
- Rendering: 3 minutes
- Total: approximately 30 minutes
Browser-based depth detection
- Upload: 10 seconds
- Add text and configure: 30 seconds
- Export: 1 minute
- Total: under 2 minutes
The After Effects version produced cleaner edges on close inspection. The browser version had softer depth transitions.
At social media viewing sizes and scroll speeds, the difference was not perceptible.
When After Effects is necessary
Client work with detailed review. Frame-by-frame scrutiny requires pixel-perfect control.
Complex multi-layer compositions. Multiple elements with specific behaviors need precise compositing tools.
Broadcast delivery requirements. Specific codecs, formats, and professional delivery standards.
When browser-based tools are sufficient
Social media content. Speed matters more than perfection.
Concept testing. Determine if an effect works before committing to a full workflow.
Non-editors. People who need the effect without learning professional software.
Budget constraints. Free tools versus $23/month subscription.
Process overview
Open the depth text editor. Upload your video. Add text (bold fonts work best). Enable depth detection and click on your subject. Adjust the threshold slider. Export.
Total time: approximately 90 seconds including upload.
Practical workflow integration
Many editors use both tools depending on the project:
Quick social content: browser tool exclusively.
Client work: After Effects, sometimes with browser-based mockups first.
Personal projects: depends on the specific requirements.
Test with your footage
Open the editor and upload a challenging clip. Evaluate how it handles your specific footage. The test takes 30 seconds.
If results are insufficient for your needs, no time has been lost. If results are acceptable, significant time has been saved.
Beyond depth text
Once you have the depth effect, enhance your video further:
- Film color grades for cinematic visual quality
- Auto captions for accessibility and silent viewing
Related: How to add text behind a person | Best caption styles for social media