Code Viewer. Source code: src/2.lighting/4.3.lighting_maps_exercise2/lighting_maps

#version 330 core out vec4 FragColor; struct Material { sampler2D diffuse; sampler2D specular; float shininess; }; struct Light { vec3 position; vec3 ambient; vec3 diffuse; vec3 specular; }; in vec3 FragPos; in vec3 Normal; in vec2 TexCoords; uniform vec3 viewPos; uniform Material material; uniform Light light; void main() { // ambient vec3 ambient = light.ambient * vec3(texture(material.diffuse, TexCoords)); // diffuse vec3 norm = normalize(Normal); vec3 lightDir = normalize(light.position - FragPos); float diff = max(dot(norm, lightDir), 0.0); vec3 diffuse = light.diffuse * diff * vec3(texture(material.diffuse, TexCoords)); // specular vec3 viewDir = normalize(viewPos - FragPos); vec3 reflectDir = reflect(-lightDir, norm); float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess); vec3 specular = light.specular * spec * (vec3(1.0) - vec3(texture(material.specular, TexCoords))); // here we inverse the sampled specular color. Black becomes white and white becomes black. FragColor = vec4(ambient + diffuse + specular, 1.0); }