Common Issues
Camera Not Working
Symptoms:
- Black screen instead of camera preview
- Camera preview frozen
- "Camera not available" message
Solutions:
- 1.Check camera permissions
iOS Settings → Privacy & Security → Camera → Enable LightPaint
- 1.Restart the app completely
Swipe up and remove from app switcher, then relaunch
- 1.Restart your device
Hold power button and slide to power off
- 1.Ensure no other apps are using the camera
Close all camera-using apps first
Poor Light Painting Results
Symptoms:
- Weak or invisible light trails
- Image too bright/washed out
- Trails not appearing as expected
- Blurry or shaky results
Solutions:
Environmental Fixes
- Use a tripod for stability
- Ensure environment is dark enough
- Check light indicator reading
- Block ambient light sources
Setting Adjustments
- Lower ISO in bright environments
- Increase light trail length
- Use brighter light sources
- Adjust blend mode settings
App Crashes During Recording
Symptoms:
- App closes unexpectedly while recording
- Freezes during long sessions
- Memory warning messages
Solutions:
- 1.Close other apps to free memory
- 2.Restart the device for clean memory state
- 3.Check available storage space (need 2GB+)
- 4.Reduce video quality settings
- 5.Update to latest iOS version
- 6.Limit recording session length
Export/Sharing Issues
Symptoms:
- Cannot export to Photos Library
- Sharing fails or hangs
- "Export failed" error messages
- Missing files after export
Solutions:
Check Photos access permission
Settings → Privacy & Security → Photos → LightPaint
Ensure sufficient storage space
Need at least 1GB free for exports
Try individual exports instead of batch
Large batches may timeout
Verify full version is active
Export requires premium features
Siri Commands Not Working
Symptoms:
- Siri doesn't recognize commands
- "I can't find that app" response
- Commands do nothing
Solutions:
- 1.Enable Siri permissions in app settings
- 2.Check iOS Settings → Privacy & Security → Siri & Dictation
- 3.Try re-recording the voice command
- 4.Include "LightPaint" in command phrase
- 5.Update to latest app version
Performance Optimization
For Better Performance
- 1.Close Background Apps
Free up device memory
- 1.Enable Metal Acceleration
Ensure GPU processing is enabled
- 1.Reduce Concurrent Renders
Lower max concurrent renders in settings
- 1.Use Lower Resolution
For longer recording sessions
- 1.Monitor Battery
Recording stops at low battery levels
For Better Light Painting
- 1.Use a Tripod
Essential for stable long exposures
- 1.Dark Environment
Check light indicator for optimal conditions
- 1.Bright Light Sources
LEDs, flashlights, lasers work best
- 1.Keep Moving
Light sources should be in motion
- 1.Plan Your Design
Visualize the final result before recording
Device-Specific Tips
Older iPhones (11-12)
- Use 1080p instead of 4K
- Limit effects for performance
- Shorter recording sessions
- Close all other apps first
Newer iPhones (13+)
- Full 4K recording capable
- All effects at maximum
- Extended sessions possible
- ProRAW capture support
Getting Help
In-App Help
Camera Tips
Accessible from main menu
Guides
Built-in tutorials and examples
Video Tutorials
YouTube integration for detailed guidance
Contact Support
Support Channels
- App Settings → About section
- GitHub Issues for bugs
- User Community forums
Before Contacting
- Try all troubleshooting steps
- Note your device model
- Include iOS version
- Describe steps to reproduce
- Include error messages
Quick Reference
Most Common Fixes
- Restart the app
- Check permissions
- Free up storage space
- Update to latest version
- Use a tripod
Performance Checklist
- Close background apps
- Enable Metal acceleration
- Check battery level
- Monitor device temperature
- Use appropriate resolution
This comprehensive user manual provides complete documentation of LightPaint's features and capabilities. For the latest updates and additional resources, visit the app's settings menu for links to tutorials and support.