2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Completed a 2 panel mosaic but the image viewer freezes when APP tries to load the mosaic upon completion. It just hangs at the very beginning of the progress bar. Â Is there a limit to the file size for the viewer? I've attached the problem file.
This loads fine in Pixinsight. Using M1 Max 64GB and 2.0.0-beta1
Edit by Mabula: fixed in 2.0.0-beta2, image is larger than OpenGL's maximum texture size, and APP fails to load it with the CPU image viewer in 2.0.0-beta1.
Hmmm... Now I can't upload my fits file that shows this problem. It's 480.3 MB so I think it should upload.Â
@rixon Where are you trying to upload the FITS file to? To our file server? Note that you cannot use your forum username and password for that. You need to use upload for both.
Okay, I've uploaded the file. Note to others: you do this at https://upload.astropixelprocessor.com/ Thanks.
@rixon Thanks for the note to others. The upload instructions are at the top of every forum page.
I had a look at your image and can reproduce your problem. I'll discuss it with Mabula.
Thank you for reporting the issue. I have tested it myself but the image loads fine in both 1.083 and the 2.0.0-beta1 on my main computer (Windows 10). I will test now on other computers (especially macOS) to see if I can duplicate the issue... What are you both seeing in the Console output when you try to load the image in the image viewer?
The image is not too big, so memory should not be the issue at least.
Mabula
On my mac mini M1 with 2.0.0-beta1 it is also is not working... and I see why. My mac mini M1 only has maximum texture size of 16384 pixels and the image is larger than that (horizontal dimensions are larger). So it needs to be loaded with the CPU image viewer instead of the OpenGL image viewer. APP should do this automatically but it does not, so it is a definite bug.
And I am glad to say that it is fixed already in 2.0.0-beta2 which will be there soon 😉
Thank you for reporting !
Mabula
