Friday, 9 August 2019

Unity 3d on build screen goes to black

Recently I updated one of my projects - to Unity 2019.1.6f1 and when I run it in unity editor everything was working as expected, however when I build it for desktop and run I got black screen. I could not find solution online even tough I tried all tricks and tips I found. For instance setting Clear Flags on on all camera to Don't clear, reducing texture resolution.
After playing around and scratching my head I realised that I made all cameras into prefabs in my previous version of unity, when I right clicked in project hierarchy window and selected Unpack Prefab Completely it magically started to work again as expected.
Hope that helps someone out there ans save a lot of time.

Wednesday, 3 July 2019

Modern Interior 3d design in Unity 3d

I always wanted to create 3d interior design but always had some other projects in the way. Finally found some spare time and released Modern Interior asset.

Wednesday, 20 March 2019

Different case styles in programming

Camel case 

"theQuickBrownFoxJumpsOverTheLazyDog" or "TheQuickBrownFoxJumpsOverTheLazyDog"
First letter of each word is capitalised. In languages such as C# it is almost imperative to use low case for the first word

Snake case 

Spaces are replaced by underscore. Words can be lower case, upper case or mixed.

Kebab case

Same as Snake case, however underscores are replaced with hyphens.

Studly caps

Complete chaos and pattern whatsoever - use it if you want to offend other programmers. 

Sunday, 17 February 2019

Blender - Quick tips to reduce poly count


 If mesh is made out of quads in edit mode, select the mesh, then ctrl+e and choose Un-Subdivide

Delete Edge Loops

Quite common tactic to reduce poly count in oval shapes objects.
In edit mode select edge loop by pressing alt+right click, then space and type Delete Edge Loop

Limited Dissolve

One of my favorite and quickest techniques. Quickly remove unnecessary vertices without breaking the mesh structure. Still might require some manual adjustment but dramatically reduce poly counts.
We reduced poly count from 49,216 to 436. You can also play with max angle value under limited dissolve menu. It works well on square objects with lots of edge loops.

Decimate modifier

Select object and add Decimate modifier

9750 polygons on the the top photo vs 436 after using decimate modifier.

Wednesday, 6 February 2019

Use of @Input in Angular 6+

According to official angular documentation it declares a data-bound input property.

Let's have a look at this simple example.


The following example creates a component with two input properties.

See the Pen
by Adam Bielecki (@adambielecki)
on CodePen.

Thursday, 31 January 2019

Using Singleton in C#

Singleton is used in application when we want to store consistent unique data in an object disallowing creating a new instances of this object in the same time.

Here are the bullet points that defines Singleton.

  • cannot be instantiated (private constructor instead of public)
  • cannot be inherited (sealed class)
  • public static instance has to be available across the whole application
Singleton concept is quite popular in mobile apps and video games, less in web/desktop applications.

Here is a simple example of Singleton usage.

Wednesday, 30 January 2019

Understanding Predicate delegate with simple example in C#

Predicate is a delegate that always returns boolean value (True or False).

Predicate is used in conjunction with lambda expression.

Below example shows how can we simply replace static method with Predicate.

public class Program
 public static void Main()
  Predicate<int> isGreaterThan5Predicate = m => m > 5;
  Console.WriteLine("Using Predicate to determine condition - 4 is not greater than 5 hence: " + isGreaterThan5Predicate(4));
  Console.WriteLine("Using static method to determine condition - 6 is greater than 5 hence: " + isGreaterThan5(6));

 public static bool isGreaterThan5(int number)
  return number > 5? true: false;

Running above code will produce those messages in the console.

Using Predicate to determine condition - 4 is not greater than 5 hence: False
Using Predicate to determine condition - 6 is greater than 5 hence: True