Abbey Road Biopic Cover Studio

Clicking the '60s Monochrome' filter button updates state.filter to 'monochrome' and triggers draw(). In applyFilterAndOverlays(), the canvas extracts all pixel color channels via getImageData() and computes luminance using standard perceptual weights (0.299 Red + 0.587 Green + 0.114 Blue), rescales the contrast around mid-gray, and applies the result back to the canvas buffer.

The zebra crossing is drawn on the 1200x1200 canvas using a configurable count of trapezoids. The top edge of each stripe is positioned along the horizon Y line (default 440 px) across a 240-pixel span, while the lower edge expands across a 760-pixel width at vertical coordinate 1140 px.

Curbs are rendered as flanking triangles angling from (0, horizonY) down to (160, 1200) on the left and (1200, horizonY) down to (1040, 1200) on the right, providing an impression of roadway convergence without solving 3D projective transformation matrices.

Each figure's walking geometry is derived mathematically from their stride multiplier: legSpread is calculated as 45 * stride, shifting the back foot by -(legSpread + 8) and the front foot by (legSpread - 4). Arm swing offsets similarly multiply by stride factor.

Before drawing avatars, the array of cast objects is sorted by ascending x coordinate ([...cast].sort((a, b) => a.x - b.x)), ensuring consistent visual occlusion as figures are dragged horizontally across the roadway.

This saved studio draws a stylized square sleeve in a twelve hundred by twelve hundred pixel canvas. Its cast names and future biopic banner are saved creative fixtures, not independent confirmation of a production. Stripe density changes the number of perspective trapezoids from four through eight. The road spans seven hundred sixty pixels at the bottom and two hundred forty at the top. Each white stripe fills sixty five percent of its cell. At four stripes, a bottom stripe is one hundred twenty three point five pixels wide; at six it is about eighty two point three; at eight it is sixty one point seven five. More stripes become narrower while retaining the same sixty five percent fill fraction. The diagram reproduces those source coordinates at a fixed scale. Stride changes the drawn pose, not an animation speed. The source sets each leg spread to forty five times stride, then scales that pose by the actor scale times one point three five. For the first actor, scale is zero point eight eight. Stride zero point two gives a nine pixel local spread, or ten point six nine two canvas pixels from center. Stride zero point nine gives forty point five local pixels, or forty eight point one one four canvas pixels. Stride one point four gives sixty three local pixels, or seventy four point eight four four canvas pixels. Each line here shows twice that half spread. Dragging uses twelve hundred divided by displayed canvas width to convert pointer distance into source coordinates, then clamps actor positions between one hundred twenty and one thousand eighty. The controls redraw the same square buffer, and the PNG export saves its current pixels at twelve hundred by twelve hundred. Choosing monochrome computes a weighted gray value, using red weight zero point two nine nine, green zero point five eight seven, and blue zero point one one four. It then increases contrast around one hundred twenty eight and clamps values to zero through two hundred fifty five. Reset Preset restores actor positions, stride, grading, horizon, and six stripes, but it does not reset a custom title or the title and border toggles. Export the changed sleeve, use reset, and inspect which choices remain. No external cast photographs or album art are loaded; the drawing is generated by the saved canvas code.