optzn
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@ -36,24 +36,16 @@ void main() {
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vec2 from = aFrom, ctrl = aCtrl, to = aTo;
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vec2 dilation, position;
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bool zeroArea = abs(from.x - to.x) < 0.1 ||
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abs(uTileSize.y - min(min(from.y, to.y), ctrl.y)) < 0.1;
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if (aTessCoord.x < 0.5) {
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position.x = min(min(from.x, to.x), ctrl.x);
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dilation.x = zeroArea ? 0.0 : -0.5;
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} else {
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position.x = max(max(from.x, to.x), ctrl.x);
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dilation.x = zeroArea ? 0.0 : 0.5;
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}
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if (aTessCoord.y < 0.5) {
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position.y = min(min(from.y, to.y), ctrl.y);
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dilation.y = zeroArea ? 0.0 : -0.5;
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} else {
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vec2 position;
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bool zeroArea = !(abs(from.x - to.x) > 0.1) || !(abs(uTileSize.y - min(from.y, to.y)) > 0.1);
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if (aTessCoord.x < 0.5)
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position.x = floor(min(min(from.x, to.x), ctrl.x));
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else
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position.x = ceil(max(max(from.x, to.x), ctrl.x));
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if (aTessCoord.y < 0.5)
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position.y = floor(min(min(from.y, to.y), ctrl.y));
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else
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position.y = uTileSize.y;
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dilation.y = 0.0;
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}
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position += dilation;
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vFrom = from - position;
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vCtrl = ctrl - position;
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