scene.vert.glsl

#version 430
/**/

#extension GL_ARB_shading_language_include : enable
#include "common.h"

// inputs in model space
in layout(location=VERTEX_POS)    vec3 vertex_pos_model;
in layout(location=VERTEX_NORMAL) vec3 normal;

// outputs in view space
out Interpolants {
  vec3 normal;
  vec3 eyeDir;
  vec3 lightDir;
} OUT;

void main()
{
  // proj space calculations
  gl_Position   = object.modelViewProj * vec4( vertex_pos_model, 1 );

  // view space calculations
  vec3 pos      = (object.modelView   * vec4(vertex_pos_model,1)).xyz;
  vec3 lightPos = (scene.viewMatrix   * vec4(scene.lightPos_world,1)).xyz;
  OUT.normal    = (object.modelViewIT * vec4(normal,0)).xyz;
  OUT.eyeDir    = scene.eyePos_view - pos;
  OUT.lightDir  = lightPos - pos;
}

/*-----------------------------------------------------------------------
  Copyright (c) 2014, NVIDIA. All rights reserved.
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  modification, are permitted provided that the following conditions
  are met:
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     or promote products derived from this software without specific
     prior written permission.
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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-----------------------------------------------------------------------*/