Aura Carousel
Move an endless card carousel through glowing edges of chromatic dispersion and refraction.

Aura Carousel sends a continuous row of image cards through two fields of colored light. The middle stays clear while cards near either edge stretch, split into spectral bands, and dissolve into a soft glow. The effect belongs to the frame rather than the cards: scrolling brings different images through the same optical boundary.
The renderer samples each image at displaced positions, separating color channels as they approach the edge. Width and falloff determine where the distortion begins and how quickly it grows. Turbulence breaks up the boundary, while Stretch and Prism modes reshape the cards passing through it. A separate aura band adds glow and refraction around the transition.
Wheel, touch, keyboard, and arrow navigation move the rail between snapped card positions. Repeated copies of the same sequence allow browsing to continue in either direction without reaching an end. Motion boost strengthens the optical response during scrolling. Testimonials can pass through the shader with their images or remain crisp as a separate text layer.
Canvas dimensions define a crop around the fixed-size composition, rather than rescaling the cards. Still-image export uses the current scroll position and optical settings to render that same view as PNG or JPEG at the selected resolution. Background controls determine whether the composition sits on a solid color or exports with transparent surroundings in PNG.

