<@include gpu/Config.slh@>
<$VERSION_HEADER$>
//  Generated on <$_SCRIBE_DATE$>
//
//  model_normal_map.vert
//  vertex shader
//
//  Created by Andrzej Kapolka on 10/14/13.
//  Copyright 2013 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 gpu/Inputs.slh@>
<@include gpu/Color.slh@>
<@include gpu/Transform.slh@>
<$declareStandardTransform()$>

const int MAX_TEXCOORDS = 2;

uniform mat4 texcoordMatrices[MAX_TEXCOORDS];

out vec4 _position;
out vec2 _texCoord0;
out vec3 _normal;
out vec3 _tangent;
out vec3 _color;

void main(void) {
    // pass along the diffuse color
    _color = colorToLinearRGB(inColor.xyz);

    // and the texture coordinates
    _texCoord0 = (texcoordMatrices[0] * vec4(inTexCoord0.xy, 0.0, 1.0)).st;

    // standard transform
    TransformCamera cam = getTransformCamera();
    TransformObject obj = getTransformObject();
    <$transformModelToEyeAndClipPos(cam, obj, inPosition, _position, gl_Position)$>
    <$transformModelToEyeDir(cam, obj, inNormal.xyz, _normal)$>
    <$transformModelToEyeDir(cam, obj, inTangent.xyz, _tangent)$>
}