#version 330 core

uniform sampler2D diffuseTex; 
uniform sampler2D bumpTex; 

in Vertex{
	vec4 colour;
	vec2 texCoord;
	vec3 normal;
	vec3 tangent;
	vec3 binormal;
	vec3 worldPos;
} IN;

out vec4 fragColour [2];

void main(void){
	mat3 TBN = mat3(normalize(IN.tangent),
	normalize(IN.binormal),
	normalize(IN.normal));

	vec3 normal = texture2D(bumpTex, IN.texCoord).rgb * 2.0 - 1.0;
	normal = normalize(TBN * normalize(normal));

	fragColour [0] = texture2D(diffuseTex, IN.texCoord);
	fragColour [1] = vec4(normal.xyz * 0.5 + 0.5, 1.0);
}