#version 330

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

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

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



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

   eyeCoordPosition.xyz /= eyeCoordPosition.w;

   v_texCoord = u_textureMatrix * i_texCoord;
   v_detailCoord = u_detailMatrix * i_texCoord;

   v_fogCoord = abs(eyeCoordPosition.z);

   v_color = i_color;
   v_distance = eyeCoordPosition.z;
}