Grafika_2024/projekt_grk/shaders/shader_skybox.frag

#version 430 core

layout (location = 0) out vec4 outColor;
layout (location = 1) out vec4 BrightColor;

uniform samplerCube skybox;

in vec3 texCoord;

void main()
{
    vec4 texColor = texture(skybox, texCoord);

    float brightness = dot(texColor.rgb, vec3(0.2126, 0.7152, 0.0722));
    if (brightness > 0.2)
        BrightColor = vec4(texColor.rgb, 1.0);
    else
        BrightColor = vec4(0.0, 0.0, 0.0, 1.0);

    outColor = texColor;
}