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Don't blur vector skins

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adroitwhiz
2020-05-20 16:04:28 -04:00
parent 26988e398f
commit 0d86ec92ed
1 changed files with 5 additions and 1 deletions
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6
src/SVGSkin.js
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@@ -119,7 +119,11 @@ class SVGSkin extends Skin {
const scaleMax = scale ? Math.max(Math.abs(scale[0]), Math.abs(scale[1])) : 100;
const requestedScale = Math.min(scaleMax / 100, this._maxTextureScale);
const mipLevel = Math.max(Math.round(Math.log2(requestedScale)) + INDEX_OFFSET, 0);
// Math.ceil(Math.log2(scale)) means we use the "1x" texture at (0.5, 1] scale,
// the "2x" texture at (1, 2] scale, the "4x" texture at (2, 4] scale, etc.
// This means that one texture pixel will always be between 0.5x and 1x the size of one rendered pixel,
// but never bigger than one rendered pixel--this prevents blurriness from blowing up the texture too much.
const mipLevel = Math.max(Math.ceil(Math.log2(requestedScale)) + INDEX_OFFSET, 0);
// Can't use bitwise stuff here because we need to handle negative exponents
const mipScale = Math.pow(2, mipLevel - INDEX_OFFSET);