SDK Configuration Properties
Refer various SDK config properties applicable for WebAR SDK
WebAR SDK can be configured to select the mode (surface or marker tracking), customize the logo, style of the splash screen, UI screens (shown by SDK) etc using the following SDK configuration parameters.
These parameters can be used in different ways:
- Adding as properties in javascript object window.WEBAR_SDK_CONFIG. A separate script having this object defined has to be included before loading the SDK <script> tag.
It is supported only from WebAR SDK v1.1.0-beta onwards
Example:
webar-sdk-config.js
window.WEBAR_SDK_CONFIG = {
"webar-mode": "surface-tracking",
"rendering-engine": "playcanvas",
"auto-init": "true",
"logo-src": "../images/test_logo_here.png"
};
index.html :
<script src="https://webar-sdk.blippar.com/releases/live-config/playcanvas/webar-sdk-config-surface.js"></script>
<script src="https://webar-sdk.blippar.com/releases/latest/cdn/blippar/webar-sdk-v1.2.0-beta.min.js?license-key=xxxxxxxx-1111-2222-3333-yyyyyyyyyyyy"></script>
- Adding as html attributes to the <script> tag in which the WebAR SDK js file is loaded.
- Adding as a URL search params in the SDK script tag url.
Only the license-key property can be passed via URL search params. Passing other properties via URL will not work.
It is supported only from WebAR SDK v1.1.0-beta onwards
Example:
<script src="https://webar-sdk.blippar.com/releases/latest/cdn/blippar/webar-sdk-v1.2.0-beta.min.js?license-key=xxxxxxxx-1111-2222-3333-yyyyyyyyyyyy"></script>
If an attribute is present in both the WEBAR_SDK_CONFIG property and SDK script tag attribute then the WEBAR_SDK_CONFIG property takes higher priority.
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the background color of the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#283747"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the border color of the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="5"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the border thickness of the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="5px"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the font size of the text in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-box-font-size="24px"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the height of the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-box-height="182px"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the width of the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-box-width="290px"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the button color in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#00FFFF"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the button height in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="50px"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the button text color in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#283747"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the camera permission button text in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-motion-permission-text="No Problem"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the camera permission text in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-camera-permission-text="We need to ask for access to the camera so this experience can work!!!"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the text color in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#283747"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the motion sensor permission button text in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-motion-permission-text="No Problem"
...></script>
Description
On iOS Safari browser, a Camera permission request notice is displayed before asking the user to allow access to the Camera. This attribute changes the motion sensor permission text in the notice alert dialog.
Example
<script src="path_to_webar_sdk_script.js"
alert-motion-permission-text="Now we need access to motion sensors!!!"
...></script>
Description
When SDK and A-Frame components with webar-* attributes are loaded, the AR experience starts automatically by default. In case the AR experience has to be started only after an event or user intervention, then auto-init attribute can be set to "false".
If auto-init="false" is assigned, the WEBARSDK.Init() method has to be called to start the WebAR experience. Please note that auto-init is associated with initializing the sdk core whereas auto-start enables the user to control when to start the tracking in the app.
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-init="false">
</script>
</head>
<body>
<script>
WEBARSDK.Init();
</script>
</body>
Description
It enables auto marker detection so that user doesn't have to manually click the scan button, rather it detects automatically when it recognises a marker.
If auto-marker-detection="true" is assigned, the scan button disappears from the phone screen during marker tracking and it starts scanning automatically.
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-marker-detection="true">
</script>
</head>
Description
User can change the default scan instruction for auto marker detection, i.e. when auto-marker-detection sets to 'true'.
Default text for scan instruction is "Look for a marker to scan..."
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-instruction="Find a marker to scan...">
</script>
</head>
Description
User can change the default scan instruction when marker is detecting i.e. recognises a marker image.
Default text for scan instruction while detection is "Detecting..."
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-instruction-detect="Marker detecting...">
</script>
</head>
Description
User can change the default scan instruction when phone is idle
Default text for scan instruction is "Move around to look for a marker"
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-instruction-idle="Shake your phone to start detection">
</script>
</head>
Description
Changes the css style of scan instruction text element.
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-instruction-text-style="color: orange">
</script>
</head>
Description
User can change css style of scan instruction html element.
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-style=""display: none; position: absolute; top: 90%; left: 50%; transform: translate(-50%, -50%); z-index: 10000; width: auto; height: auto; text-align: center;"">
</script>
</head>
Description
User can change the display style of auto scan html element
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-scan-style-display="display: block">
</script>
</head>
Description
When sdk and A-Frame components with webar-* attributes are loaded, the AR experience starts automatically by default. In case the AR experience has to be started only after an event or user intervention, then the auto-start attribute can be set to "false".
If auto-start="false" is assigned, the WEBARSDK.StartTracking() method has to be called to start the WebAR experience/tracking. Please note that auto-init is associated with initializing the sdk core whereas auto-start enables the user to control when to start the tracking in the app.
Example
<head>auto-init
<script src="<path_to_webar_sdk_min_js>"
auto-start="false">
</script>
</head>
<body>
<script>
WEBARSDK.StartTracking();
</script>
</body>
Description
Changes the height and width of the logo image displayed in a desktop browser where the user is asked to scan the QR code or type the url in Android or iOS mobile browsers.
Example
<script src="path_to_webar_sdk_script.js"
desktop-logo-height="30px"
desktop-logo-width="108px"
...></script>
Description
Changes the logo image displayed in a desktop browser where the user is asked to scan the QR code or type the url in Android or iOS mobile browsers.
Example
<script src="path_to_webar_sdk_script.js"
desktop-logo-src="images/my_rectangular_logo.png"
...></script>
Description
Changes the height and width of the warning symbol image displayed in the landscape warning screen, or any device/server communication error.
Example
<script src="path_to_webar_sdk_script.js"
issue-img-height="116px"
issue-img-width="116px"
...></script>
Description
Changes the warning symbol image displayed in the landscape warning screen, or any device or server communication error.
Example
<script src="path_to_webar_sdk_script.js"
issue-img-src="images/my_exclamation_image.png"
...></script>
Description
Changes the height and width of the circular logo in the loading splash screen.
Example
<script src="path_to_webar_sdk_script.js"
logo-height="116px"
logo-width="116px"
...></script>
Description
Changes the circular logo in the loading splash screen.
Example
<script src="path_to_webar_sdk_script.js"
logo-src="images/my_logo.png"
...></script>
Description
Loads a custom splash screen. To create a custom splash screen, the user should create a function and pass the function as a string to the "on-load" attribute.
Example
<script type="text/javascript">
function SetMySplash() {
let splashDiv = document.createElement('div');
splashDiv.setAttribute('id',"mySplash");
splashDiv.setAttribute('style',"background-color: black; position: absolute; align-items: center; justify-content: center; top: 0; bottom: -1px; left: 0; right: 0; min-width: 100vw; min-height: 100vh; width: auto; height: auto; margin: auto; z-index: 2; user-select: none; -webkit-user-select: none; -moz-user-select: none;");
let logoImg = document.createElement('img');
const progress = WEBARSDK.GetLoadingProgress();
...
document.body.append(splashDiv);
}
</script>
<script src="path_to_webar_sdk_script.js"
on-load="SetMySplash()"
...></script>
Description
Changes the color of the dotted loading ring which runs indefinitely until the splash screen disappears.
Example
<script src="path_to_webar_sdk_script.js"
progress-dot-ring-color="#00AAFF"
...></script>
Description
Changes the size/scale of the dotted loading ring which runs indefinitely until the splash screen disappears.
Example
<script src="path_to_webar_sdk_script.js"
progress-dot-ring-scale="0.30"
...></script>
Description
Changes the color of the loading progress update ring.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#00FFFF"
...></script>
Description
Changes the thickness of the loading progress update ring.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="5"
...></script>
Description
Changes the size of the loading progress update ring.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-scale="0.36"
...></script>
Description
Decides which rendering engine is to be used with the application
Rendering Engine | Description |
|---|---|
babylonjs | BabylonJS rendering engine |
playcanvas | Playcanvas rendering engine |
aframe | (Default) AFrame rendering engine. By default the AFrame rendering engine is chosen by sdk even in the following cases:
|
Example
<head>
<script src="<path_to_webar_sdk_min_js>"
rendering-engine="babylonjs">
</script>
</head>
<body>
<script>
WEBARSDK.Init();
</script>
</body>
Description
Changes the css display property of the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking". To make it invisible set it to "none" else "block".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-display="block"
...></script>
Description
Changes the height and width of the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-height="100px"
scan-btn-width="100px"
...></script>
Description
Sets the height and width of the image displayed in the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-img-height="50"
scan-btn-img-width="50"
...></script>
Description
Sets the image of the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-img-src="images/user_scan-btn-image_here.png"
...></script>
Description
Sets the SVG transform property (e.g. translate(), rotate() etc.) of the image displayed in the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-img-transform="translate(-25, -25)"
...></script>
Description
Sets the x and y coordinates of the image displayed in the scan button during marker tracking i.e. when webar-mode="marker-tracking". The x and y position of the image is the top left position, relative to the viewport of the origin of the element i.e the scan button. Use scan-btn-img-transform attribute's translate() method to position the image to the centre.
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-img-x-coordinate="50%"
scan-btn-img-y-coordinate="50%"
...></script>
Description
Changes the text below the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-instruction="Tap to scan"
...></script>
Description
Changes the css style of the text below the scan button displayed during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-instruction-style="color: white;"
...></script>
Description
Sets the color of the progress foreground circular bar displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-bar-color="blue"
...></script>
Description
Sets the x and y coordinates of the centre of the progress foreground circular bar displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-bar-cx-coordinate="50"
scan-btn-progress-bar-cy-coordinate="50"
...></script>
Description
Sets the radius of the progress foreground circular bar displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-bar-radius="35"
...></script>
Description
Sets the SVG transform property (e.g. translate(), rotate() etc.) of the progress foreground circular bar displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-bar-transform="rotate(-90 50 50)"
...></script>
Description
Sets the x and y coordinates of the centre point of the progress background circle displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-circle-cx-coordinate="50%"
scan-btn-progress-circle-cy-coordinate="50%"
...></script>
Description
Sets the radius of the progress background circle displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-circle-radius="35"
...></script>
Description
Sets the SVG style of the progress background circle displayed around the scan button during marker tracking i.e. when webar-mode="marker-tracking".
Example
<script src="path_to_webar_sdk_script.js"
scan-btn-progress-circle-style="fill: none; stroke: cyan; stroke-width: 6;"
...></script>
Description
Enable or disable displaying the default Hand with phone animation guide, which instructs the user to move the phone left and right to detect a surface.
Example
<script src="path_to_webar_sdk_script.js"
show-guide-view="false"
...></script>
If the default Hand with phone animation guide is disabled by setting show-guide-view animation to false, it is necessary to display a developer-made surface detection guide. Without this the user will not be aware of the need to view a surface and move the phone left to right to detect the surface. To control when to show and then hide a custom Hand with phone animation guide, use WEBARSDK.SetGuideViewCallbacks(startGuideViewCallback, stopGuideViewCallback)
Description
Sets the custom animation URL for hand guide animation of surface tracking. Please note that it only supports lottie animations json format.(https://lottiefiles.com)
Example
<script src="path_to_webar_sdk_script.js"
show-guide-animation-url="https://assets4.lottiefiles.com/packages/lf20_lir7pmho.json"
...></script>
Description
By default, sdk assumes Static-Camera-With-A-Moving-Stage i.e. 'static-camera' = 'true'. However, it can be changed to Moving-Camera-With-A-Static-Stage by setting 'static-camera' = 'false'.
Example
<scriptsrc="path_to_webar_sdk_script.js"
static-camera="true"
...></script>
Description
Changes the background color of the loading splash screen, landscape warning screen or any device/server communication error.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#283747"
...></script>
Description
Replaces the default text shown in the landscape warning screen.
Example
<script src="path_to_webar_sdk_script.js"
ui-portrait-text="Cette expérience est conçue pour le mode Portrait uniquement"
...></script>
Description
Changes the text color of the landscape warning screen, or any device/server communication error.
Example
<script src="path_to_webar_sdk_script.js"
progress-ring-color="#00FFFF"
...></script>
Description
Decides whether to run the WebAR SDK in Surface Tracking or Image/Marker Tracking mode.
Supported Values- webar-mode | Description |
|---|---|
surface-tracking | Runs the WebAR SDK in Surface Tracking mode. Surface Tracking is the default mode. If this attribute is not present or any other not-supported value is provided, it runs in Surface Tracking mode. In surface tracking mode, the <a-scene webar-scene> should have one <a-entity webar-stage> element. See webar-stage (A-frame) attribute for more details. |
marker-tracking | Runs the WebAR SDK in Marker Tracking mode. |
lazy-mode | Runs the WebAR SDK in Lazy Mode i.e. allows the user to decide at a later stage which tracking should be enabled. The user can set the respective tracking mode using functionSetWebARMode("tracking-mode"), see the example below. |
Example
Without Lazy Mode
<head>
<script src="<path_to_webar_sdk_min_js>"
webar-mode="marker-tracking">
</script>
</head>
<body>
<script>
WEBARSDK.Init();
</script>
</body>
With Lazy Mode
<head>
<script src="<path_to_webar_sdk_min_js>"
webar-mode="lazy-mode">
</script>
</head>
<body>
<script>
WEBARSDK.SetWebARMode("surface-tracking");
</script>
</body>
For PlayCanvas customization, kindly use the following config files which can be found at playcanvas/config folder in the downloaded SDK zip file:
- webar-sdk-config-surface.js
- webar-sdk-config-marker.js
These files have to be modified and hosted on a separate server (say my-server.com) and the url has to be overwritten in the Playcanvas project.