Pigment/examples/hsv.gdshader

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shader_type canvas_item;
#include "./shaderlib/hsv.gdshaderinc"
void fragment() {
vec4 hsv = rgb2hsv(COLOR);
hsv.xyz += vec3(0.65, .42-(hsv.y*.3), -.125);
hsv.xyz *= vec3(1.0, 1.0, 1.25);
COLOR = hsv2rgb(hsv);
}