improved the shader of mesh renderer to make the global lighting better

Assets/source/SolidColor.frag.hlsl

@@ -11,11 +11,13 @@ float4 main(Input input) : SV_Target0
 {
     float3 normal = normalize(input.WorldNormal);
 
-    // Initial ambient component
+    // Initial ambient component (Soft blue sky ambient)
-    float3 result = input.Color.rgb * GlobalLightColor * GlobalAmbientIntensity;
+    float3 ambientColor = float3(0.6f, 0.7f, 0.9f);
+    float3 result = input.Color.rgb * ambientColor * GlobalAmbientIntensity;
 
     // Directional light contribution
-    float ndotl = max(dot(normal, -GlobalLightDirection), 0.0);
+    float3 sunDir = normalize(-GlobalLightDirection);
+    float ndotl = max(dot(normal, sunDir), 0.0);
     result += input.Color.rgb * GlobalLightColor * ndotl;
 
     // Point lights
@@ -42,5 +44,8 @@ float4 main(Input input) : SV_Target0
         }
     }
 
+    // Simple Gamma correction
+    result = pow(result, 1.0 / 2.2);
+
     return float4(result, input.Color.a);
 }