fragmentShader.glsl

#version 420 core

in vec3 FragPos;
in vec2 texCoordsExport;
in vec3 normalExport;

out vec4 colorsOut;

struct Light
{
   vec4 ambCols;
   vec4 difCols;
   vec4 specCols;
   vec4 direction;
};

struct Material
{
   vec4 ambRefl;
   vec4 difRefl;
   vec4 specRefl;
   vec4 emitCols;
   float shininess;
};

uniform sampler2D texture2D;
uniform Light light0;
uniform Material material;
uniform vec3 viewPos;

void main(void)
{
	vec3 normal = normalize(normalExport);
	vec3 lightDirection = vec3(light0.direction);
	vec4 diffuse = max(dot(normal, lightDirection), 0.0f) * (light0.difCols * material.difRefl); 
	
	vec3 viewDir = normalize(viewPos - FragPos);
    vec3 reflectDir = reflect(-lightDirection, normal);  
    float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
    vec4 specular = light0.specCols * spec * material.specRefl;

	//colorsOut = specular;
	//((vec4(vec3(min(diffuse, vec4(1.0))), 1.0) + light0.ambCols + material.emitCols)

	colorsOut = (diffuse + light0.ambCols + material.emitCols) * texture(texture2D, texCoordsExport);
}