Class: Ray::Effect::ColorInversion

Inherits:
Ray::Effect show all
Defined in:
lib/ray/effect/color_inversion.rb

Overview

An effect to invert the color of a pixel. This preserves the alpha component.

Instance Method Summary collapse

Methods inherited from Ray::Effect

#apply_defaults, attribute, attributes, #defaults, effect_name, #header, #name, #struct

Instance Method Details

#code ⇒ Object 



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# File 'lib/ray/effect/color_inversion.rb', line 7

def code
  return <<code
vec4 do_color_inversion(ray_color_inversion args, vec4 color) {
  return vec4(vec3(1, 1, 1) - color.rgb, color.a);
}
code
end