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[Feature]: update simpleBlur function #10254

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4 tasks done
poi-mashiro opened this issue Nov 5, 2024 · 2 comments
Open
4 tasks done

[Feature]: update simpleBlur function #10254

poi-mashiro opened this issue Nov 5, 2024 · 2 comments

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@poi-mashiro
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CheckList

  • I agree to follow this project's Code of Conduct
  • I have read and followed the Contributing Guide
  • I have searched and referenced existing issues, feature requests and discussions
  • I am filing a FEATURE request.

Description

the result of simpleBlur is not as same as webgl

fabric version 5.x and 6.x

simpleBlur filters
image

webgl filters
image

origin image
image

Current State

simpleBlur result
image

webgl result
image

Additional Context

No response
@asturur
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asturur commented Nov 6, 2024

Simpleblur is trying to use drawImage + offset + opacity to reproduce a blur effect.
You can implment a full blur in software but will be a bit slow. It was done for speed reasons, i m not sure why you get those artifacts. is the image you are using semi transparent?

@poi-mashiro
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origin image is image/png

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@asturur @poi-mashiro