attribute vec3 vPosition;
attribute vec2 vTexCoord;
attribute vec3 vNormal;

varying vec2 texCoord;
varying float fogDistance;
varying vec3 fragViewPos;
varying vec3 fragNormal;
varying vec2 fragWorldXZ;

uniform mat4 ProjectionModelViewMatrix;
uniform mat4 ModelViewMatrix;
uniform vec3 uPlayerEyePos;

void main()
{
	vec4 eyePos = ModelViewMatrix * vec4(vPosition.xyz, 1.0);
	fogDistance = length(eyePos.xyz - uPlayerEyePos);
	gl_Position = ProjectionModelViewMatrix * vec4(vPosition.xyz, 1.0);
	texCoord = vTexCoord;
	fragViewPos = eyePos.xyz;
	fragNormal = mat3(ModelViewMatrix) * vNormal;
	fragWorldXZ = vPosition.xz;
}