Create Strip get wrong alignment on no square images

[azsd]

I have 32 128*256 size TGA image, with alpha channel.
when I create strip of image from these files, I can only get right target picture when number of thumb per row less than 7, or I will have scaled item with black background in bottom and center.
for eg, I select 8 per row, I get 32 64*128 thumb in a 1024*1024 panorama result.

Code: Select all

1234567000000008
1234567000000008
1234567000000008
1234567000000008
0000000000000000
0000000000000000
0000000000000000
0000000000000000

1~8 means right element column number, 0 means grid in black.