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invert.frag (273B)


// Invert Colors

#version 300 es
precision highp float;

in vec2 v_texcoord;
uniform sampler2D tex;

out vec4 fragColor;

void main()
{
    vec4 pixColor = texture(tex, v_texcoord);
    fragColor = vec4(1.0 - pixColor.r, 1.0 - pixColor.g, 1.0 - pixColor.b, pixColor.a);
}