Mention the problem with mask colour and blurring.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41413 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2006-09-24 12:50:48 +00:00
parent 07aaa1a4b8
commit e5d1e06de3

View File

@ -1110,7 +1110,13 @@ It should be noted that although using wxIMAGE\_QUALITY\_HIGH produces much nice
looking results it is a slower method. Downsampling will use the box averaging method
which seems to operate very fast. If you are upsampling larger images using
this method you will most likely notice that it is a bit slower and in extreme cases
it will be quite substantially slower as the bicubic algorithm has to process a lot of data.
it will be quite substantially slower as the bicubic algorithm has to process a lot of
data.
It should also be noted that the high quality scaling may not work as expected
when using a single mask colour for transparency, as the scaling will blur the
image and will therefore remove the mask partially. Using the alpha channel
will work.
Example: