LYGIA Shader Library

linearLight (lygia/color/blend/linearLight)

Photoshop Linear Light blend mode mplementations sourced from this article on



blendLinearLigth(<float|vec3> base, <float|vec3> blend [, <float> opacity])

Check it on Github

float blendLinearLight(in float base, in float blend) {
  return blend < .5? blendLinearBurn(base, (2. * blend)): blendLinearDodge(base, (2. * (blend- .5)));

vec3 blendLinearLight(in vec3 base, in vec3 blend) {
  return vec3(blendLinearLight(base.r, blend.r),
              blendLinearLight(base.g, blend.g),
              blendLinearLight(base.b, blend.b));

vec3 blendLinearLight(in vec3 base, in vec3 blend, in float opacity) {
    return (blendLinearLight(base, blend) * opacity + base * (1. - opacity));


MIT License (MIT) Copyright (c) 2015 Jamie Owen

LYGIA is dual-licensed under the Prosperity License and the Patron License for sponsors and contributors.

Sponsors and contributors are automatically added to the Patron License and they can ignore the any non-commercial rule of the Prosperity Licensed software (please take a look to the exception).

It's also possible to get a permanent comercial license hook to a single and specific version of LYGIA.

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