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No need to use globalAlpha or run fillRect twice.

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This commit is contained in:
Richard Davey 2018-04-07 17:52:10 +01:00
parent 751bfa9ef7
commit b7ae0295bc
1 changed files with 7 additions and 9 deletions
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16
src/renderer/canvas/CanvasRenderer.js
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@ -441,22 +441,20 @@ var CanvasRenderer = new Class({
}
ctx.setTransform(1, 0, 0, 1, 0, 0);
if (camera._fadeAlpha > 0 || camera._flashAlpha > 0)
{
ctx.globalCompositeOperation = 'source-over';
if (camera._fadeAlpha > 0)
{
// fade rendering
ctx.fillStyle = 'rgb(' + (camera._fadeRed * 255) + ',' + (camera._fadeGreen * 255) + ',' + (camera._fadeBlue * 255) + ')';
ctx.globalAlpha = camera._fadeAlpha;
ctx.fillStyle = 'rgba(' + (camera._fadeRed * 255) + ',' + (camera._fadeGreen * 255) + ',' + (camera._fadeBlue * 255) + ',' + camera._fadeAlpha + ')';
ctx.fillRect(camera.x, camera.y, camera.width, camera.height);
}
if (camera._flashAlpha > 0)
{
// flash rendering
ctx.fillStyle = 'rgb(' + (camera._flashRed * 255) + ',' + (camera._flashGreen * 255) + ',' + (camera._flashBlue * 255) + ')';
ctx.globalAlpha = camera._flashAlpha;
ctx.fillStyle = 'rgba(' + (camera._flashRed * 255) + ',' + (camera._flashGreen * 255) + ',' + (camera._flashBlue * 255) + ',' + camera._flashAlpha + ')';
ctx.fillRect(camera.x, camera.y, camera.width, camera.height);
ctx.globalAlpha = 1.0;
}
// Reset the camera scissor