Tilemap Seamless Off causes Sampling Bug

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  • Problem Description

    When project has sampling set to Point, and Tilemap seamless mode is off, the tilemap becomes blurry when played.

    I don't remember this being the case in previous c2 version. It was clear/crisp in previous versions of c2.

    Attach a Capx


    Description of Capx

    retro template with tilemap added, set seamless mode off causes blur.

    Steps to Reproduce Bug

    • run game, see blur

    Observed Result

    blurry tilemap

    Expected Result

    map should be crisp and not blurred.

    Affected Browsers

    • Chrome: (YES)
    • FireFox: (YES)
    • Internet Explorer: (YES)

    Operating System and Service Pack

    vista sp2

    Construct 2 Version ID


  • When you turn seamless mode off, Tilemap reverts to a different rendering system which uses tiling textures, which due to the current limitations of WebGL 1 must be a power-of-two size. (WebGL 2 removes that restriction.) Since you picked a non-power-of-two tile size this causes the tile to be stretched which causes the slight blur that you see. It's always worked like this, it's not a recent change.

    TBH seamless mode "off" has all sorts of problems and we will probably remove it at some point. Just use seamless mode "on".

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  • ok thanks for the info- that makes sense.

    I went back and checked r277 just to make sure, and it was blurry there too. I guess i originally had seamless mode on and somehow I must've turned them off at some point.

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