linebender / linebender/resvg

PNG output rendering issue

Open
#760 2 comments 0 reactions 0 assignees View on GitHub

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bug
Dominant language
Rust
Stars
4.1k
Forks
348
Avg merge
1d 14h
Merged PRs (30d)
3

Description

The input svg file is a circle with gradients. The issue is that on the output png file, on the very right of the circle the gradient is cut off showing a sharp line.

Input svg file.
Screenshot 2024-05-01 at 3 12 20 PM
Output png file.
Screenshot 2024-05-01 at 3 13 08 PM

Input svg code.
```svg

```

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by rendering the provided SVG through resvg and compare the right edge of the circle with the supplied output screenshot. Trace the gradient, mask, filter, and blend-mode handling involved in the cutoff; done means the PNG renders the circle's gradient continuously without the sharp line.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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