<a-marker cursor="rayOrigin: mouse"> dramatically decrease fps (makes everything slow) #50

taime · 2019-11-15T00:51:08Z

I'm using ar js (https://github.com/jeromeetienne/AR.js) and find out that combination of

aframe-particle-system-component
<a-marker cursor="rayOrigin: mouse">

dramatically decrease fps.
You can check it by yourself here:
https://ar.rownarts.com/test/issue_slow.html
https://ar.rownarts.com/test/issue_fast.html

Here is full example:

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name='viewport' content='width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0'>
    <script src='https://aframe.io/releases/0.9.2/aframe.min.js'></script>
    <script src="https://unpkg.com/[email protected]/dist/aframe-particle-system-component.min.js">
    </script>
    <script src="https://raw.githack.com/jeromeetienne/AR.js/2.0.8/aframe/build/aframe-ar.js"></script>
</head>


<body style='margin : 0px; overflow: hidden;'>
    <a-scene stats vr-mode-ui='enabled: false' embedded
        arjs='sourceType: webcam; sourceWidth:1280; sourceHeight:960; displayWidth: 1280; displayHeight: 960; debugUIEnabled: true;'>

        <!-- SNOW  -->
        <a-entity position="0 2.25 -15" particle-system="preset: snow; particleCount: 10000"></a-entity>

        <!-- MARKER -->
        <a-marker id="animated-marker" emitevents="true" cursor="fuse: false; rayOrigin: mouse" type='barcode'
            value='6'>
            <a-cone color="tomato" radius-bottom="1" radius-top="0.5"></a-cone>
        </a-marker>

        <a-camera>
        </a-camera>
    </a-scene>
</body>

</html>

The text was updated successfully, but these errors were encountered:

Cheaterman · 2020-10-14T12:56:05Z

FYI, I noticed performance issues with nfc markers as well, here's what I used to fix them: arjs="sourceType: webcam; maxDetectionRate: 20; canvasWidth: 320; canvasHeight: 240;"

EDIT: What's a bit puzzling to me is that particles seem to be way slower than, say, the background camera, so I'm not quite sure why? From reading AR.js code there seems to be a "worker" for detection, so AIUI that's supposed to run detection in another thread or something? Not sure it's working properly...

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<a-marker cursor="rayOrigin: mouse"> dramatically decrease fps (makes everything slow) #50

<a-marker cursor="rayOrigin: mouse"> dramatically decrease fps (makes everything slow) #50

taime commented Nov 15, 2019 •

edited

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Cheaterman commented Oct 14, 2020 •

edited

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<a-marker cursor="rayOrigin: mouse"> dramatically decrease fps (makes everything slow) #50

<a-marker cursor="rayOrigin: mouse"> dramatically decrease fps (makes everything slow) #50

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taime commented Nov 15, 2019 • edited Loading

Cheaterman commented Oct 14, 2020 • edited Loading

taime commented Nov 15, 2019 •

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Cheaterman commented Oct 14, 2020 •

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