trying to add better lighting

resources/shaders/shader.frag

@@ -3,21 +3,61 @@ out vec4 fragColor;
 
 
 //uniform float light_power;
-//uniform vec3 lightColor;
-//uniform vec3 objectColor;
-//uniform vec3 viewPos;
+uniform vec3 lightColor;
+uniform vec3 objectColor;
+//uniform vec3 view_pos;
 
-// in vec3 FragPos;
-//in vec3 Normal;
-//in vec3 LightPos;
+in vec3 FragPos;
+in vec3 Normal;
+in vec3 LightPos;
 
-// const float light_power = 12.0;
-const float ambientStrength = 0.2;
+const float light_power = 12.0;
+const float ambientStrength = 0.1;
 const float shininess = 64.0;
 const float screenGamma = 2.2; // Assume the monitor is calibrated to the sRGB color space
 
 void main()
 {
-    fragColor = vec4(1.0, 0.0, 0.0, 1.0);
+    // FragColor = vec4(1.0f, 0.0f, 0.0f, 1.0f);
+
+//    fragColor = vec4(dot(LightPos, Normal) * lightColor, 1.0);
+    vec3 norm = normalize(Normal);
+    vec3 lightDir = normalize(LightPos - FragPos);
+
+    float diff = max(dot(norm, lightDir), 0.0);
+    vec3 diffuse = diff * lightColor;
+
+    vec3 ambient = ambientStrength * lightColor;
+
+    fragColor = vec4((ambient + diffuse) * objectColor, 1.0);
+
+//        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);
 }