#version 330
in vec3 normal;
in vec3 normalEye;
in vec3 fragPos;
uniform vec3 lightPos;
uniform vec3 viewPos;
uniform vec4 lightColor;
out vec4 FragColor;

void main() {
	float ambient = 0.1;
	float specularStrength = 0.5;
	vec3 lightDir = normalize(fragPos - lightPos);
	float diffuse = max(0, dot(-normal, lightDir));

	vec3 viewDir = normalize(fragPos - viewPos);
	vec3 reflectDir = reflect(-lightDir, normal);
	float specular = pow(max(0, dot(viewDir, reflectDir)), 128);

	vec4 lighting = (ambient + diffuse + specular) * lightColor;

	FragColor = lighting * vec4((normal + 1) / 2, 1);
}