#version 300 es

/*this will affect all the float guys (float, vecN, matN )*/
precision mediump float;

layout (location = 0) in vec3 vertPos;   // Attributo Posizione
layout (location = 1) in vec2 coord_uv; // Attributo texture
layout (location = 2) in vec3 vertNor;
layout (location = 3) in vec3 vertTan;
layout (location = 4) in vec3 vertBitan;

 uniform mat4 Model;
 uniform mat4 ModelRot;
 uniform mat4 Projection;
 uniform mat4 View;

 out vec3 fragPos;
 out vec2 frag_uv;
 out vec3 fragNormal;
 out vec3 fragBaryc;

 out vec3 T;
 out vec3 B;
 out vec3 N;


void main()
{   
	frag_uv = coord_uv;
	vec3 normal = normalize(vertNor);
	
    mat3 mv = mat3(View * Model);
    T = normalize(mv * vertTan);
    B = normalize(mv * vertBitan);
    N = normalize(mv * vertNor);

    fragNormal = mat3(ModelRot) * vec3(normal);
    fragPos=(Model*vec4(vertPos,1)).xyz;
    gl_Position=Projection*View*Model*vec4(vertPos,1);
    fragBaryc = vec3(gl_VertexID % 3 == 0, gl_VertexID % 3 == 1, gl_VertexID % 3 == 2);
}