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PS Bugfix: revert gamma correction for color, not brightness setting

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This commit is contained in:
Damian Schneider 2025-07-29 19:35:12 +02:00
parent 591dbe387c
commit b76ef231fc
1 changed files with 4 additions and 4 deletions
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8
wled00/FXparticleSystem.cpp
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@ -601,7 +601,7 @@ void ParticleSystem2D::render() {
hsv2rgb(baseHSV, baseRGB.color32); // convert back to RGB hsv2rgb(baseHSV, baseRGB.color32); // convert back to RGB
} }
} }
if(gammaCorrectBri) brightness = gamma8(brightness); // apply gamma correction, used for gamma-inverted brightness distribution if(gammaCorrectCol) brightness = gamma8(brightness); // apply gamma correction, used for gamma-inverted brightness distribution
renderParticle(i, brightness, baseRGB, particlesettings.wrapX, particlesettings.wrapY); renderParticle(i, brightness, baseRGB, particlesettings.wrapX, particlesettings.wrapY);
} }
@ -675,7 +675,7 @@ __attribute__((optimize("O2"))) void ParticleSystem2D::renderParticle(const uint
// - scale brigthness with gamma correction (done in render()) // - scale brigthness with gamma correction (done in render())
// - apply inverse gamma correction to brightness values // - apply inverse gamma correction to brightness values
// - gamma is applied again in show() -> the resulting brightness distribution is linear but gamma corrected in total // - gamma is applied again in show() -> the resulting brightness distribution is linear but gamma corrected in total
if(gammaCorrectBri) { if(gammaCorrectCol) {
pxlbrightness[0] = gamma8inv(pxlbrightness[0]); // use look-up-table for invers gamma pxlbrightness[0] = gamma8inv(pxlbrightness[0]); // use look-up-table for invers gamma
pxlbrightness[1] = gamma8inv(pxlbrightness[1]); pxlbrightness[1] = gamma8inv(pxlbrightness[1]);
pxlbrightness[2] = gamma8inv(pxlbrightness[2]); pxlbrightness[2] = gamma8inv(pxlbrightness[2]);
@ -1458,7 +1458,7 @@ void ParticleSystem1D::render() {
hsv2rgb(baseHSV, baseRGB.color32); // convert back to RGB hsv2rgb(baseHSV, baseRGB.color32); // convert back to RGB
} }
} }
if(gammaCorrectBri) brightness = gamma8(brightness); // apply gamma correction, used for gamma-inverted brightness distribution if(gammaCorrectCol) brightness = gamma8(brightness); // apply gamma correction, used for gamma-inverted brightness distribution
renderParticle(i, brightness, baseRGB, particlesettings.wrap); renderParticle(i, brightness, baseRGB, particlesettings.wrap);
} }
// apply smear-blur to rendered frame // apply smear-blur to rendered frame
@ -1519,7 +1519,7 @@ __attribute__((optimize("O2"))) void ParticleSystem1D::renderParticle(const uint
// - scale brigthness with gamma correction (done in render()) // - scale brigthness with gamma correction (done in render())
// - apply inverse gamma correction to brightness values // - apply inverse gamma correction to brightness values
// - gamma is applied again in show() -> the resulting brightness distribution is linear but gamma corrected in total // - gamma is applied again in show() -> the resulting brightness distribution is linear but gamma corrected in total
if(gammaCorrectBri) { if(gammaCorrectCol) {
pxlbrightness[0] = gamma8inv(pxlbrightness[0]); // use look-up-table for invers gamma pxlbrightness[0] = gamma8inv(pxlbrightness[0]); // use look-up-table for invers gamma
pxlbrightness[1] = gamma8inv(pxlbrightness[1]); pxlbrightness[1] = gamma8inv(pxlbrightness[1]);
} }