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HTML5 canvas shadowBlur Attribute
HTML5 canvas referenceExample
Draw a rectangle with a blurring shadow:
JavaScript:
<script type="text/javascript">
var canvas=document.getElementById("myCanvas");
var ctx=canvas.getContext("2d");
ctx.rect(20,20,100,80);
ctx.fillStyle="red";
ctx.shadowColor="black";
ctx.shadowBlur=30;
ctx.fill();
</script>
var canvas=document.getElementById("myCanvas");
var ctx=canvas.getContext("2d");
ctx.rect(20,20,100,80);
ctx.fillStyle="red";
ctx.shadowColor="black";
ctx.shadowBlur=30;
ctx.fill();
</script>
Try it yourself »
Definition and Usage
The shadowBlur attribute specifies the blurring effect of the shadow.
| Default value: | 0 |
|---|---|
| JavaScript syntax: | context.shadowBlur=10; |
Browser Support
The shadowBlur attribute is supported in all major browsers.
Attribute Values
| Value | Description | Play it |
|---|---|---|
| size | The size of the blurring effect of the shadow. | Play it » |
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Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.