State persistence:
- Use rememberUpdatedState to always get latest params inside pointerInput
- Capture gestureStartParams at beginning of each gesture
- All adjustments now use initial values + accumulated change
Drag tracking:
- Track initialDragCentroid at drag start
- Calculate total drag offset from initial point (not frame-by-frame)
- Drag now properly moves focus center 1:1
Shader rotation sync:
- Adjust angle by -90° in shader to compensate for portrait texture rotation
- Preview blur effect now rotates in sync with overlay UI
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Rotation:
- Use direct angle calculation between touch points (atan2)
- Track initial touch angle and effect angle separately
- Effect rotation now matches finger rotation exactly
Position drag:
- Remove all sensitivity dampening
- 1:1 mapping: finger moves 100px, effect center moves 100px
Gesture zones rebalanced:
- Rotation: only very center of focus zone (< 30% of focus height)
- Size adjustment: large area around effect (30% - 200%)
- Camera zoom: only far outside the effect (> 200%)
This prevents rotation from dominating size adjustments.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2D positioning:
- Add positionX parameter to BlurParameters (was only Y before)
- Update shader with uPositionX and uPositionY uniforms
- Single-finger drag now moves focus center anywhere on screen
- Update gradient mask generation for capture
Rotation tracking:
- Remove dampening from rotation gesture (1:1 tracking)
- Rotate gesture now directly tracks finger movement
- Preview effect rotates in sync with overlay
Overlay and shader sync:
- Both now use same positionX, positionY, angle parameters
- Preview blur effect matches overlay visualization
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Move #extension directive to first line (required by GLSL)
- Replace array initializer syntax with getWeight() function
(float[]() constructor not supported in GLSL ES 1.00)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
A dedicated camera app for tilt-shift photography with:
- Real-time OpenGL ES 2.0 shader-based blur preview
- Touch gesture controls (drag, rotate, pinch) for adjusting effect
- CameraX integration for camera preview and high-res capture
- EXIF metadata with GPS location support
- MediaStore integration for saving to gallery
- Jetpack Compose UI with haptic feedback
Tech stack: Kotlin, CameraX, OpenGL ES 2.0, Jetpack Compose
Min SDK: 26 (Android 8.0), Target SDK: 35 (Android 15)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
