- From: Erik Dahlstrom <ed@opera.com>
- Date: Fri, 17 Jun 2011 15:34:29 +0200
- To: "public-fx@w3.org" <public-fx@w3.org>, "Vincent Hardy" <vhardy@adobe.com>
On Fri, 17 Jun 2011 15:02:32 +0200, Vincent Hardy <vhardy@adobe.com> wrote: ... > Hit testing > https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/publish/Filters.html#filte > rs-in-css > > The filter is defined to have no effect on hit testing when clicking into > the final rendered image. This is a concern: highly distorting filters > will basically create situations where the hit testing is completely at > odds with what the viewer sees. For example, in an extreme case, a filter > can blow away the image entirely, but it will still respond to hit > testing. Has the group discussed possible solutions to this problem? A concern that's been mentioned before is that it can be expensive to evaluate filters for hit-testing. However, just taking the region that was affected by a given filter could work performance-wise. Unfortunately that region can be visually empty too depending on the input and what filterops were used (e.g make something almost fully transparent). -- Erik Dahlstrom, Core Technology Developer, Opera Software Co-Chair, W3C SVG Working Group Personal blog: http://my.opera.com/macdev_ed
Received on Friday, 17 June 2011 13:35:05 UTC