Added spotlight

examples/movement/shaders/fragmentShader.frag

@@ -15,6 +15,15 @@ struct Light
 	float constant, linear, quadratic;
 };
 
+struct Flashlight
+{
+	vec3 position, direction;
+	float angle, outerAngle;
+	vec3 diffuse, specular;
+
+	float constant, linear, quadratic;
+};
+
 in vec2 oUV;
 in vec3 oNormal;
 in vec3 oFragPos;
@@ -25,28 +34,33 @@ uniform vec3 viewPos;
 
 uniform Material material;
 uniform Light light;
+uniform Flashlight fl;
 
 void main()
 {
-	// Ambient light
-	vec3 ambient = light.ambient * light.ambientStrength * vec3(texture(material.diffuse, oUV));
+	vec3 lightDir = normalize(fl.position - oFragPos);
+	float theta = dot(lightDir, normalize(-fl.direction));
+	float epsilon = fl.angle - fl.outerAngle;
+	float intensity = clamp((theta - fl.outerAngle) / epsilon, 0.0, 1.0);
 
 	vec3 norm = normalize(oNormal);
 	// Diffuse light
-	vec3 lightDir = normalize(light.position - oFragPos);
 
 	float diff = max(dot(norm, lightDir), 0.0);
-	vec3 diffuse = light.diffuse * diff * vec3(texture(material.diffuse, oUV));
+	vec3 diffuse = fl.diffuse * diff * vec3(texture(material.diffuse, oUV));
 
 	// Specular light
 	vec3 viewDir = normalize(viewPos - oFragPos);
 	vec3 reflectDir = reflect(-lightDir, norm);
 
 	float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
-	vec3 specular = light.specular * spec * vec3(texture(material.specular, oUV));
+	vec3 specular = fl.specular * spec * vec3(texture(material.specular, oUV));
 
-	float dist = length(light.position - oFragPos);
-	float attenuation = 1.0 / (light.constant + light.linear * dist + light.quadratic * (dist * dist));
+	float dist = length(fl.position - oFragPos);
+	float attenuation = 1.0 / (fl.constant + fl.linear * dist + fl.quadratic * (dist * dist));
 
-	FragColor = vec4((ambient + diffuse + specular) * attenuation, 1.0);
+	// Ambient light
+	vec3 ambient = light.ambient * light.ambientStrength * vec3(texture(material.diffuse, oUV));
+
+	FragColor = vec4(ambient + ((diffuse + specular) * attenuation * intensity), 1.0);
 }