#version 330

out vec4 v_color;
out float v_distance;
out vec4 v_texCoord;
out vec4 v_detailCoord;
out vec4 v_glowCoord;
out float v_fogCoord;

uniform float u_usePalette;
uniform mat4 u_rotMatrix;
uniform mat4 u_modelMatrix;
uniform mat4 u_projectionMatrix;
uniform mat4 u_detailMatrix;
uniform mat4 u_glowMatrix;

in vec4 i_vertPos;
in vec4 i_texCoord;
in vec4 i_color;


const float c_zero = 0.0;
const float c_one  = 1.0;

void main()
{
   vec4 vertex = u_rotMatrix * i_vertPos;
   vec4 eyeCoordPosition = u_modelMatrix * vertex;
   gl_Position = u_projectionMatrix * eyeCoordPosition;

   eyeCoordPosition.xyz /= eyeCoordPosition.w;

   v_texCoord = i_texCoord;
   //gl_TexCoord[0] = mix(gl_TexCoord[0].xyzw, gl_TexCoord[0].yxzw, u_usePalette); WTF is this???

   v_detailCoord = u_detailMatrix * i_texCoord;
   v_glowCoord = u_glowMatrix * i_texCoord;

   v_fogCoord = abs(eyeCoordPosition.z);

   v_color = i_color;
   v_distance = i_vertPos.z;
}