[Playground Request] Considering "devicePixelRatio" for Ratina displays

ssaket · December 13, 2018, 4:49pm

Hi devs,

The current version of playground doesn’t consider “devicePixelRatio” when initializing the default engine. As a result, on ratina screens, this decreases the render sharpness.

Deltakosh · December 13, 2018, 6:02pm

Well it is for performance reason (we limit it to 1:1) you can still force it with engine setHardwareScalingLevel

brianzinn · December 13, 2018, 6:18pm

You can also create your own engine for auto adapting (or use option for limiting), instead of default (the last parameter defaults to false in default PG):
https://www.babylonjs-playground.com/#6T7HMZ

For the curious – the “how”:

github.com

BabylonJS/Babylon.js/blob/master/Playground/js/index.js#L531


var createSceneFunction;



getRunCode(jsEditor, function(code) {

    var createDefaultEngine = function() {

        return new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true });

    }



    var scene;

    var defaultEngineZip = "new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true })";



    if (code.indexOf("createEngine") !== -1) {

        createEngineFunction = "createEngine";

    }



    if (code.indexOf("delayCreateScene") !== -1) { // createScene

        createSceneFunction = "delayCreateScene";

        checkCamera = false;

    } else if (code.indexOf("createScene") !== -1) { // createScene

        createSceneFunction = "createScene";

    } else if (code.indexOf("CreateScene") !== -1) { // CreateScene

        createSceneFunction = "CreateScene";

ssaket · December 13, 2018, 6:39pm

Ohh… I see. I thought so. @brianzinn thanks I appreciate it, but it’s tedious for me to add a function to every playground which I am opening, hence the title “request”.

Deltakosh · December 13, 2018, 6:50pm

Yeah I get your point but for performance reason I prefer to stick with a more conservative settings by default:)

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[Playground Request] Considering "devicePixelRatio" for Ratina displays

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