[BUG] Pasting Alpha Channel Object to Overlay

**Hernan** · 12th December 2008, 05:12 PM

Hi, I don't think this bug has been reported yet, so I'll do that here.
The Alpha Channel Object has a function "Alpha->Overlay" which pastes the alpha channel to the overlay object. However this function doesn't work correctly, the resulting overlay image is shifted 1 pixel to the left and has strange colors. (it should be gray). The function "Image->Overlay" works fine on the other hand.

Workaround: A possible workaround is to save the alpha image on your harddisk with "Save PNG (alpha only)", then loading that alpha image again to your image and use the Image->Overlay function instead.

**Kalgon** · 29th December 2013, 06:34 PM

Hey

Is there anyone who can solve this bug? Turboferret has gone, so probably Yves has access to source code of alpha channel object.
Also, there are a few bugs I found.
Even when new image is loaded, old is still there (even when object is destroyed) and all backdrops in layer too. I can't get rid of drawn images.
Another bug is with reading 16 colors bitmap. It works well but one color from palette array (probably index 0) isn't readed and is treated as transparent color.
Please solve this bug because it's only one object that can read 4 bit bitmaps.

Or, if You haven't time, I hope that Yves or someone will release a source code of Alpha channel object.

**happygreenfrog** · 30th December 2013, 03:54 AM

The Overlay object has been superseded by the surface object. The alpha channel object has been superseded by MMF2 itself, as active objects support alpha-channels. Also, just because an extension developer leaves doesn't mean the MMF2/Clickteam Fusion 2.5 programmers get access to the source code. Over all, there isn't really much that can be done, and, even if something could be done, it wouldn't really be worth it (by the way, why do you want to read 4-bit bitmaps?).

**Kalgon** · 30th December 2013, 06:23 PM

Because I'm creating converter for textures, which are used in some PS2 game and it has 4 and 8 bit textures. It would be good to send completed bytes of converted image from Binary Object to some preview just like Alpha Object or Surface Object (if it could handle pure image data from memory just like normal file from HDD)

**happygreenfrog** · 30th December 2013, 08:50 PM

Someone who understands the file format for 4-bit bitmaps could potentially hand-load them into the surface object if said images are stored in any reasonable binary format, though it wouldn't necessarily be fast.