Spark Stack Holo

Step 1 of 5 Upload

Upload your dog photo

We’ll turn it into a 3D Holo preview.

Upload your dog photo

JPEG · PNG · WebP · HEIC

Remove the background now — or skip and continue.

Tip: if automatic removal looks wrong, upload your photo to ChatGPT, ask it to remove the background, and bring the PNG back here.

Advanced — fix cutout

Pick Square or Rect, then rotate if needed.

Rotate Photo

Rotate Frame

Zoom, move, and align your photo in the frame.

Zoom

Drag the photo in the frame above, or use zoom below.

Zoom 1.0×

Align in frame

Drag to reposition · scroll or pinch to zoom.

Tap the button to start building your acrylic stack.

Tap the button to create your HOLO.

Advanced controls (not recommended)

Show advanced controls

Underlap 0.10" · 2.5mm

Pixel fix Min sq in

Outline 0.00" · 0.0mm Contrast stretch Gamma 1.0 Edge smoothing Smooth 0.50 Speckle filter

Depth model

Quantization

Pre-layered upload

Rapid test path: drop 8 PNGs (1 = front / nearest … 8 = back). Pick a shape, then Build — no photo or depth needed.

Upload your dog photo

Upload photo