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Only set frameState.animate true if in transition and alpha < 1

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This commit is contained in:
Tim Schaub
2019-08-15 10:25:05 -06:00
parent 2c69ad2bb4
commit e94c7b6c39
3 changed files with 75 additions and 3 deletions
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5
src/ol/renderer/canvas/TileLayer.js
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@@ -377,7 +377,8 @@ class CanvasTileLayerRenderer extends CanvasLayerRenderer {
return;
}
const uid = getUid(this);
const alpha = opacity * (transition ? tile.getAlpha(uid, frameState.time) : 1);
const tileAlpha = transition ? tile.getAlpha(uid, frameState.time) : 1;
const alpha = opacity * tileAlpha;
const alphaChanged = alpha !== this.context.globalAlpha;
if (alphaChanged) {
this.context.save();
@@ -389,7 +390,7 @@ class CanvasTileLayerRenderer extends CanvasLayerRenderer {
if (alphaChanged) {
this.context.restore();
}
if (alpha !== 1) {
if (tileAlpha !== 1) {
frameState.animate = true;
} else if (transition) {
tile.endTransition(uid);