#version 110

varying vec3 vertColour;
varying vec3 vertNormal;
varying vec2 texCoords;
//varying vec2 refTexCoord;

attribute vec4 boneIndices;
attribute vec4 boneWeights;

uniform mat4 MatrixPalette[60];

vec2 SphereMap(in vec3 normal, in vec3 ecPosition3)
{
   float  m;
   vec3   r,u;

   u = normalize(ecPosition3);
   r = reflect(u, normal);
   m = 2.0 * sqrt(r.x * r.x + r.y * r.y + (r.z + 1.0) * (r.z + 1.0));

   return vec2 (r.x / m + 0.5, r.y / m + 0.5);
}

void main()
{
	vec4 position = vec4(gl_Vertex.xyz, 1.0);
	vec4 normal = vec4(gl_Normal.xyz, 0.0);

	texCoords = gl_MultiTexCoord0.st;

	mat4 boneEffect = mat4(0.0);
	if(boneWeights.x > 0.0)
		boneEffect += MatrixPalette[int(boneIndices.x)] * boneWeights.x;
	if(boneWeights.y > 0.0)
		boneEffect += MatrixPalette[int(boneIndices.y)] * boneWeights.y;
	if(boneWeights.z > 0.0)
		boneEffect += MatrixPalette[int(boneIndices.z)] * boneWeights.z;
	if(boneWeights.w > 0.0)
		boneEffect += MatrixPalette[int(boneIndices.w)] * boneWeights.w;

	normal = boneEffect * normal;
	vertNormal = normal.xyz;
	vertColour = vec3(1.0,1.0,1.0);

	gl_Position = gl_ModelViewProjectionMatrix * boneEffect * position;
	
//	vec3 PositionEye = gl_ModelViewProjectionMatrix * (vec3(0.5, 0.5, 0) - position);
//	refTexCoord = SphereMap( normalize(normal.xyz), PositionEye );
}