Saving DDS "with existing mipmaps" should be possible for non-quadratic images
Opened this issue · 1 comments
GoogleCodeExporter commented
What steps will reproduce the problem?
1. make/load a non-quadratic dds image with mipmaps (for example aspect ratio 1:2)
2. try to save it
3. try to select "use existing mipmaps": its grayed out
What is the expected output? What do you see instead?
It should be possible to use existing mipmaps - to be able to correct distortions of mipmaps produced after a previous step of creating them automatically.
What version of the product are you using? On what operating system?
GIMP 2.8.10; GIMP-DDS 3.0.1
Please provide any additional information below.
Original issue reported on code.google.com by Harry.Bo...@googlemail.com
on 19 May 2014 at 3:55
GoogleCodeExporter commented
This has been reported as debian bug #731486
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731486
The author of the bug report said it is due to "when exporting existing layers
as mipmaps it validates the layers by looking for a chain with each successive
layer being half the size of the previous, using a bitshift for a fast divide
by 2, so when looking for the next layer after 2x1 it would try to find 1x0 and
fail."
Original comment by fourm...@gmail.com
on 25 May 2014 at 12:54