<@include gpu/Config.slh@>
<$VERSION_HEADER$>
//  Generated on <$_SCRIBE_DATE$>
//
//  material_opaque_unlit.frag
//  fragment shader
//
//  Created by Sam Gateau on 5/5/2016.
//  Copyright 2016 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 DeferredBufferWrite.slh@>
<@include LightingModel.slh@>
<@include graphics/Material.slh@>

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

in vec2 _texCoord0;
in vec3 _normalWS;
in vec3 _color;
in float _alpha;

void main(void) {

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

    float opacity = 1.0;
    <$evalMaterialOpacity(albedoTex.a, opacity, matKey, opacity)$>;
    <$discardTransparent(opacity)$>;

    vec3 albedo = getMaterialAlbedo(mat);
    <$evalMaterialAlbedo(albedoTex, albedo, matKey, albedo)$>;
    albedo *= _color;

    packDeferredFragmentUnlit(
        normalize(_normalWS), 
        opacity,
        albedo * isUnlitEnabled());
}