init

src/main/resources/shaders/shader.frag

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+#version 330 core
+out vec4 FragColor;
+
+
+uniform float light_power;
+uniform vec3 lightColor;
+uniform vec3 objectColor;
+uniform vec3 viewPos;
+
+in vec3 FragPos;
+in vec3 Normal;
+in vec3 LightPos;
+
+// const float light_power = 12.0;
+const float ambientStrength = 0.2;
+const float shininess = 64.0;
+const float screenGamma = 2.2; // Assume the monitor is calibrated to the sRGB color space
+
+void main()
+{
+    // FragColor = vec4(1.0f, 0.0f, 0.0f, 1.0f);
+
+    vec3 lightDir = LightPos - FragPos;
+    float distance = length(lightDir);
+    vec3 norm = normalize(Normal);
+    vec3 ambient = ambientStrength * lightColor;
+
+    distance = distance * distance;
+    lightDir = normalize(lightDir);
+
+    float lambertian = max(dot(norm, lightDir), 0.0);
+    vec3 diffuse = lambertian * lightColor;
+    float specular = 0.0;
+
+    if (lambertian > 0.0)
+    {
+        vec3 viewDir = normalize(-FragPos);
+
+        vec3 halfDir = normalize(lightDir + viewDir);
+        float specAngle = max(dot(halfDir, norm), 0.0);
+        specular = pow(specAngle, shininess);
+    }
+
+    vec3 colorLinear = (ambient + (diffuse * light_power) + (specular * light_power)) * objectColor;
+
+    // vec3 colorGammaCorrected = pow(colorLinear, vec3(1.0 / screenGamma));
+
+    FragColor = vec4(colorLinear, 1.0);
+
+    // vec3 norm = normalize(Normal);
+}
+