[BUG] AviSynth - RGBAdjust behavior needs corrected - Printable Version +- Selur's Little Message Board (https://forum.selur.net) +-- Forum: Hybrid - Support (https://forum.selur.net/forum-1.html) +--- Forum: Problems & Questions (https://forum.selur.net/forum-3.html) +--- Thread: [BUG] AviSynth - RGBAdjust behavior needs corrected (/thread-2208.html)

AviSynth - RGBAdjust behavior needs corrected - The_Tinkerer - 11.12.2021 - R/G/B/A and Offset should allow both positive and negative values from -255.00 to +255.00. - Gamma is missing. That should appear below Offset as Gamma R/G/B/A, with default values of 1.00 which means leave clip untouched. http://avisynth.nl/index.php/RGBAdjust The above link doesn't specify minimum / maximum values for Offset (Bias) or Gamma but all allowed values should be: R/G/B/A: -255.00 to +255.00 Offset (Bias) R/G/B/A: -255.00 to +255.00 Gamma R/G/B/A: +0.01 to +255.00 (Gamma values of 0.00 or below (negative) will cause an error.) Inserted script line at defaults should be: RGBAdjust(1.00,1.00,1.00,1.00,0.00,0.00,0.00,0.00,1.00,1.00,1.00,1.00,analyze=false,dither=false) I verified via custom script that the above works with expected results and no errors. Current incorrect behavior is R/G/B/A allows -100.00 to +100.00 (should be -255.00 to +255.00), Offset R/G/B/A allows 0.00 to 255.00 (should be -255.00 to +255.00), and Gamma is missing entirely. RE: AviSynth - RGBAdjust behavior needs corrected - Selur - 11.12.2021 According how I read the documentation you linked to it should be: r: 0.0 to 255.0 g: 0.0 to 255.0 b: 0.0 to 255.0 a: 0.0 to 1 rb: -255 - 255 gb: -255 - 255 bb: -255 - 255 ab: -255 - 255 (these need to be scaled by bit depth) rg: 0.01 - ... gg: 0.01 - ... bg: 0.01 - ... ag: 0.01 - ... (since gamma exponential scaling I'll restrict it to 10) Cu Selur RE: AviSynth - RGBAdjust behavior needs corrected - The_Tinkerer - 11.12.2021 You're right... the filter allows negative values for R/G/B/A, but they are the same as setting 0 values.  (They also crash if values are entered for Offsets.) As always, thanks for the fast follow up! RE: AviSynth - RGBAdjust behavior needs corrected - Selur - 11.12.2021 Accidentally made a mistake when connecting B and A spin boxes, send you a new link to a dev version which should fix this. Cu Selur