Light Casters

12/12.vertex.glsl

@@ -0,0 +1,21 @@
+#version 330 core
+
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec3 normal;
+layout (location = 2) in vec2 texCoords;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+out vec3 FragPos;
+out vec3 Normal;
+out vec2 TexCoords;
+
+void main()
+{
+    gl_Position = projection * view * model * vec4(position, 1.0f);
+    FragPos = vec3(model * vec4(position, 1.0f));
+    Normal = mat3(transpose(inverse(model))) * normal;
+	TexCoords = texCoords;
+}

12/attenuation.fragment.glsl

@@ -0,0 +1,61 @@
+#version 330 core
+
+struct Material
+{
+	sampler2D diffuse;
+	sampler2D specular;
+	float shininess;
+};
+
+struct Light
+{
+	vec3 position;
+	//vec3 direction;
+
+	vec3 ambient;
+	vec3 diffuse;
+	vec3 specular;
+
+	float constant;
+	float linear;
+	float quadratic;
+};
+
+in vec2 TexCoords;
+in vec3 FragPos;
+in vec3 Normal;
+
+out vec4 color;
+
+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(texture(material.specular, TexCoords));
+
+	float distance = length(light.position - FragPos);
+	float attenuation = 1.0f / (light.constant +
+		(light.linear * distance) + 
+		(light.quadratic * (distance * distance)));
+	ambient *= attenuation;
+	diffuse *= attenuation;
+	specular *= attenuation;
+
+	vec3 result = ambient + diffuse + specular;
+	color = vec4(result, 1.0f);
+}

12/directional.fragment.glsl

@@ -0,0 +1,49 @@
+#version 330 core
+
+struct Material
+{
+	sampler2D diffuse;
+	sampler2D specular;
+	float shininess;
+};
+
+struct Light
+{
+	//vec3 position;
+	vec3 direction;
+
+	vec3 ambient;
+	vec3 diffuse;
+	vec3 specular;
+};
+
+in vec2 TexCoords;
+in vec3 FragPos;
+in vec3 Normal;
+
+out vec4 color;
+
+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.direction);
+	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(texture(material.specular, TexCoords));
+
+	vec3 result = ambient + diffuse + specular;
+	color = vec4(result, 1.0f);
+}

12/flashlight.spotlight.fragment.glsl

@@ -0,0 +1,68 @@
+#version 330 core
+
+struct Material
+{
+	sampler2D diffuse;
+	sampler2D specular;
+	float shininess;
+};
+
+struct Light
+{
+	vec3 position;
+	vec3 direction;
+	float cutOff;
+
+	vec3 ambient;
+	vec3 diffuse;
+	vec3 specular;
+
+	float constant;
+	float linear;
+	float quadratic;
+};
+
+in vec2 TexCoords;
+in vec3 FragPos;
+in vec3 Normal;
+
+out vec4 color;
+
+uniform vec3 viewPos;
+uniform Material material;
+uniform Light light;
+
+void main()
+{
+	vec3 lightDir = normalize(light.position - FragPos);
+	float cosTheta = dot(lightDir, normalize(-light.direction));
+	if (cosTheta > light.cutOff) {
+		// Ambient 
+		vec3 ambient = light.ambient * vec3(texture(material.diffuse, TexCoords));
+
+		// Diffuse
+		vec3 norm = normalize(Normal);
+		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(texture(material.specular, TexCoords));
+
+		// Attenuation
+		float distance = length(light.position - FragPos);
+		float attenuation = 1.0f / (light.constant +
+			(light.linear * distance) +
+			(light.quadratic * (distance * distance)));
+		ambient *= attenuation;
+		diffuse *= attenuation;
+		specular *= attenuation;
+
+		color = vec4(ambient + diffuse + specular, 1.0f);
+	}
+	else {
+		color = vec4(light.ambient * vec3(texture(material.diffuse, TexCoords)), 1.0f);
+	}
+}