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Posted

Hi,

 

the PT filter drives me crazy lately.

  1. No mouse wheel scroll support to enter numeric input (type R and Z) (available on windows)
  2. Using click to down/up arrow resets input to 100 for numbers >100. On windows, you can use mouse wheel with shift/alt modifier and get any number.
  3. PT UI box always resets to a small size after closing. On windows, it remembered old size. If you have a long formula you always need to resize.
  4. On Windows, 50% grey was shown as 127/256 in info panel and when using formulas you got 127 from R*255. 
    Now on Mac and 1.10.5, it shows 128 and delivers 128 for R*255
  5. The pow/powr/^ function no longer works for vectors e.g. pow(vec3(R,G,B),2.2), only single numbers, despite documentation and former results.
  6. According to doc: T means Type, which can be either a scalar or vector (but not an integer).: How do you convert integer to "scalar"? There is not a single function in the function table using type "I"/integer. This makes no sense to me. And all Functions who accept type T accept type I, too.
  7. In formulas, you must use dot as separator 0.5 - in input variables, dot gets converted according to regional settings (0,5 in may case).
    Makes no sense

Functions

Below is a table of functions that can be used in the Equations section, where:

  • T means Type, which can be either a scalar or vector (but not an integer).
pow pow(T x, T y) x to the power of y
powr powr(T x, T y) x to the power of y where x>0

 

Screenshot 2022-03-30 at 20.52.32.png

Screenshot 2022-03-30 at 20.52.22.png

APh MAC 1.10.5 PT bugs.afphoto

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

  • Staff
Posted

I've passed the first 3 issues over to the developers. In reference to No4 could you take me through your workflow for this when setting the doc up and comparing Windows and macOS.

Posted
2 hours ago, Lee D said:

I've passed the first 3 issues over to the developers. In reference to No4 could you take me through your workflow for this when setting the doc up and comparing Windows and macOS.

Hi Lee,

here an example on Mac

 A fill Layer with 50% grey gives info panel / color sampler 128.

As color input by slider has a quirk (it allows to use option/alt plus mouse and enters slightly lower/higher values despite the shown % value might stay identical) I checked and numeric input and mouse wheel all deliver 128/255.

I can't check on Windows as my PC has some boot issues (old Ryzen mainboard), but when my brain cells don't play me tricks, it was 127/255 and not 128/255 for grey (either 0.5, or 50%, or 1/2 in pt filter.

Screenshot 2022-04-04 at 18.24.44.png

Aph 50 grey gives 128.afphoto

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted

And here what Windows gives: 127 instead of 128 for the same files.

2067563985_grey50pcshownas27onwin.thumb.PNG.b8ed6b5dc81b22dfb92aa88286173aaa.PNG

There is a small catch:

  • color sliders give 127 only when increasing from lower values up to 50.
  • If using numeric input, you may get 128.

When using pt filter with 0.5, you always get 127.

515488986_greyptfilter50pcshownas27onwin.thumb.PNG.ff2af0ff68e8e44da5d312dba166c87b.PNG

For critical work, this difference could break your filters.

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted

So what is really confusing:

  • PT filter gives you 127/255 for either 0.5 or 1/2 as numeric input for PT filter on all platforms (Mac,iPad, Windows)
  • color slider gives you 128/255 for Mac, iPad and partially Windows (when using numeric input 50% or mouse for slider from above)
  • color slider gives you 127/255 on Windows only when using mouse for slider from below.

These UI inconsistencies drive me crazy.

Mostly i used the HSL slider to increase lightness from 0 to 50% to get mid grey. It always showed 127, consisted with PT filter input of 0.5.

So i never expected that on Mac you could get other color values when using the same UI method to input colors (mouse to move L slider of HSL from 0 to 50%)

crazy.

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

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