#version 330 core
uniform mat4 modelMatrix;
uniform mat4 viewMatrix;
uniform mat4 projMatrix;

in vec3 position;
in vec4 colour;
in vec3 normal; // New Attribute !
in vec2 texCoord;

out Vertex{
	vec4 colour;
	vec2 texCoord;
	vec3 normal;
	vec3 worldPos;
} OUT;

void main(void) {
	OUT.colour = colour;
	OUT.texCoord = texCoord;

	mat3 normalMatrix = transpose ( inverse ( mat3 ( modelMatrix )));

	OUT.normal = normalize ( normalMatrix * normalize ( normal ));

	vec4 worldPos = ( modelMatrix * vec4 ( position ,1));

	OUT.worldPos = worldPos.xyz ;

	gl_Position = ( projMatrix * viewMatrix ) * worldPos ;
}