- From: Dirk Schulze <dschulze@adobe.com>
- Date: Wed, 5 Mar 2014 20:49:49 +0000
- To: fantasai <fantasai.lists@inkedblade.net>
- CC: "www-style@w3.org" <www-style@w3.org>
On Mar 5, 2014, at 6:02 PM, fantasai <fantasai.lists@inkedblade.net> wrote: > On 03/05/2014 03:15 AM, Dirk Schulze wrote: >> >>> I vaguely remember the problem being something about choosing between >>> - each layer acts individually as a mask over all the layers+content >>> before it >>> vs. >>> - composite all the mask images, then use that as a mask >>> and then the possibility of grouping certain combinations of images >>> rather than all or none. Does your proposal address that in a reasonable >>> way? >> >> I believe so. Not only that, it provides much more control over the content, >> many people familiar with globalCompositeOperators from HTML canvas will >> appreciate having the same capabilities. >> >> The two modes you mention can be archived with source-over (draw layers >> on top of each other and mask together) and destination-in (mask each >> layer with the the next layer and then mask content with the result). > > Can you give an example that would accomplish the two behaviors above? > Do I need to be careful with the operator assigned to the last image, > for example? I added 3 images to the compositing examples[1]. It hope it make things more clear. Please take a look at the examples. Greetings, Dirk [1] http://dirkschulze.github.io/specs/css-masking-1/#the-mask-composite > > ~fantasai >
Received on Wednesday, 5 March 2014 20:50:20 UTC