Ewald
23dcd1c2d9
- Add ImageOpsVignette, ImageOpsChromaticAberration, ImageOpsBloom, and ImageOpsLensArtifacts for common lens/compositing effects. - Add ImageOpsDefocus: depth-driven defocus/bokeh with shaped aperture kernels (circle/hexagon/octagon/custom) and highlight bloom. - Add input_space (srgb/linear) to ImageOpsColorAjust so scene-linear/HDR sources aren't gamma-encoded twice. - Add image_b + compare_mode/wipe_position to ImageOpsPreview for a real A/B comparison, plus a separate live on-demand A/B toggle while editing. - Redesign the live-preview HUD: unified pill-style badges, frame counter now shows the real total and hides for single-frame sources, and the Output overlay only appears for Pad Out with the real pixel size. - Align README with the current node set and fix stale blend-mode docs.
54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
function clampPreviewZoom(zoom) {
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return Math.max(0.35, Math.min(6, zoom));
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}
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function screenToWorld(x, y, zoom, panX, panY, canvasSize) {
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const half = canvasSize / 2;
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return {
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x: (x - panX - half) / zoom + half,
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y: (y - panY - half) / zoom + half
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};
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}
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function getFitPlacement(width, height, sourceWidth, sourceHeight) {
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const safeWidth = Math.max(1, sourceWidth);
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const safeHeight = Math.max(1, sourceHeight);
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const scale = Math.min(width / safeWidth, height / safeHeight);
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const drawWidth = Math.max(1, Math.floor(safeWidth * scale));
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const drawHeight = Math.max(1, Math.floor(safeHeight * scale));
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const dx = Math.floor((width - drawWidth) / 2);
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const dy = Math.floor((height - drawHeight) / 2);
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return { dx, dy, drawWidth, drawHeight };
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}
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function drawFitSource(ctx, width, height, source, sourceWidth, sourceHeight, fit) {
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const placement = fit ?? getFitPlacement(width, height, sourceWidth, sourceHeight);
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ctx.clearRect(0, 0, width, height);
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ctx.imageSmoothingEnabled = true;
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ctx.drawImage(source, placement.dx, placement.dy, placement.drawWidth, placement.drawHeight);
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}
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function drawOutputBounds(ctx, fit) {
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ctx.save();
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ctx.strokeStyle = "rgba(251,191,36,0.55)";
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ctx.lineWidth = 1;
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ctx.setLineDash([6, 4]);
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ctx.strokeRect(fit.dx + 0.5, fit.dy + 0.5, fit.drawWidth, fit.drawHeight);
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ctx.setLineDash([]);
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ctx.restore();
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}
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function getCanvasPointer(canvas, event) {
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const rect = canvas.getBoundingClientRect();
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if (rect.width < 1 || rect.height < 1) return { x: 0, y: 0 };
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const scaleX = canvas.width / rect.width;
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const scaleY = canvas.height / rect.height;
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return {
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x: (event.clientX - rect.left) * scaleX,
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y: (event.clientY - rect.top) * scaleY
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};
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}
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export {
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clampPreviewZoom,
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drawFitSource,
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drawOutputBounds,
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getCanvasPointer,
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getFitPlacement,
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screenToWorld
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};
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