SVG shape-rendering Property
shape-rendering hints to the browser how to balance speed, precision, and crisp edges when rendering SVG shapes.
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Supports PNG, JPG, BMP, WEBP up to 5MB
Available shape-rendering Values
The shape-rendering property accepts values like optimizeSpeed, crispEdges, geometricPrecision, and auto, each hinting to the rendering engine a different tradeoff — crispEdges favors sharp, aliased edges useful for pixel-perfect icon grids, while geometricPrecision prioritizes accurate curve rendering over raw rendering speed.
- crispEdges favors sharp, aliased edges over smooth anti-aliasing
- geometricPrecision prioritizes accurate curves over raw rendering speed
- optimizeSpeed sacrifices some visual quality for faster rendering performance
When to Adjust shape-rendering Explicitly
Most SVG content renders fine with the default auto value, but crispEdges becomes useful specifically for small icon grids or pixel-art-style SVG graphics where anti-aliased edges create an undesired blurry look, while optimizeSpeed is worth considering only for very complex SVG scenes with many shapes where rendering performance is measurably an issue.
- Default auto value works well for the vast majority of SVG content
- crispEdges suits pixel-art-style graphics wanting sharp, non-blurred edges
- optimizeSpeed matters mainly for very complex scenes with real performance issues
Frequently Asked Questions
Does shape-rendering affect stroke width or only edge smoothness?
It primarily affects anti-aliasing and edge rendering approach rather than stroke width itself, though crispEdges specifically can make stroke edges look more blocky rather than smoothly anti-aliased.
Is shape-rendering supported consistently across all browsers?
Support is generally good in modern browsers, though the exact visual result of each value can vary slightly between rendering engines, so testing the specific effect across target browsers is worthwhile.
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