apply inverse gamma to segment brightness for better color preservation (#5343)

2026-02-04 06:57:14 +01:00
parent 6b953d96eb
commit 2676ac771d
1 changed files with 1 additions and 0 deletions
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -1384,6 +1384,7 @@ void WS2812FX::blendSegment(const Segment &topSegment) const {
  const unsigned progInv   = 0xFFFFU - progress;
  uint8_t       opacity    = topSegment.currentBri(); // returns transitioned opacity for style FADE
  uint8_t       cct        = topSegment.currentCCT();
+  if (gammaCorrectCol) opacity = gamma8inv(opacity); // use inverse gamma on brightness for correct color scaling after gamma correction (see #5343 for details)

  Segment::setClippingRect(0, 0);             // disable clipping by default