[mobile browser] how stop blur effect in canvas

I tried on this browsers (crome, safari, naver, samsung).
All Image is clearly visible, outside the canvas.
But, everyone looks blurry in canvas.
Why this reason.
And how make it look clearly in canvas.

This is due to the dpi of mobile screen been pretty high. so you could use engine.setHardwareScalingLevel(0.5); to ensure the back buffer is bigger.

Now the smaller the number the better the quality but the slower the experience :slight_smile:

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Iā€™m lack of effort that reading API. Thanks again!