<@include gpu/Config.slh@>
<$VERSION_HEADER$>
//  Generated on <$_SCRIBE_DATE$>
//  overlay3D-model_transparent_unlit.slf
//  fragment shader
//
//  Created by Sam Gateau on 2/28/2017.
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

<@include LightingModel.slh@>
<@include graphics/Material.slh@>

<@include MaterialTextures.slh@>
<$declareMaterialTextures(ALBEDO)$>

in vec2 _texCoord0;
in vec3 _color;

out vec4 _fragColor;

void main(void) {

    Material mat = getMaterial();
    BITFIELD matKey = getMaterialKey(mat);
    <$fetchMaterialTexturesCoord0(matKey, _texCoord0, albedoTex)$>

    float opacity = 1.0;
    <$evalMaterialOpacity(albedoTex.a, opacity, matKey, opacity)$>;
 
    vec3 albedo = getMaterialAlbedo(mat);
    <$evalMaterialAlbedo(albedoTex, albedo, matKey, albedo)$>;
    albedo *= _color;

    vec4 color = vec4(albedo * isUnlitEnabled(), opacity);

    _fragColor = vec4(pow(color.xyz, vec3(1.0 / 2.2)), color.w);
}