Tutorial : *--How to Remove and Add Background-- ( STEP BY STEP GUIDE )*

I decided to do this tutorial for anyone who needs help with removing backgrounds and isn't sure how to do it. It's a step by step guide to how to make your background transparent for editing purposes. This guide works amazingly with solid-colored backgrounds and not so well with complex ones so keep your backgrounds simple guys to get the best results.

Firstly, you need Gimp. Here is the link to the software, download it and install, it won't take long : http://www.gimp.org/downloads/
Secondly, here is a list of custom-made solid backgrounds for your CAS. Follow the instruction within : http://lumialoversims.tumblr.com/post/94862615014/custom-cas-backgrounds-19-flavours

Now that you're set guys, we start :wink:



STEPS :

1- Start up Gimp and open the picture file you wish to remove the background from or you simply drag and drop from original placement.

http://i.imgur.com/I43RTZy.png

2- Add an Alpha Channel from the right panel

http://i.imgur.com/Qix9ihj.png
http://i.imgur.com/LYHILz6.png

3 - Adjust the Radius for smoother edges/boundaries in the " Color Selection" Tool in Toolbox ( No white ugly silhouette). Make sure you do this before you color select your background.

http://i.imgur.com/z5WesZS.png
http://i.imgur.com/2rgfGQi.png



4 -Color select your background


http://i.imgur.com/TqMS3Fu.png
http://i.imgur.com/3yVJkQl.png

As you can see here some parts of the Sim where also selected to be deleted ( the gray/white area) because the color of the background we selected
is white, same as his shirt and glasses. Next step, I'm showing you how to make sure those parts are safe from being removed.




5 - Click on the Selection Tool on the Toolbox, left.

http://i.imgur.com/2ymcmCL.png


Keep that Tool selected and hover your mouse over the Pic then press Ctrl and Drag at the same time to frame the areas you wish not to be deleted.

http://i.imgur.com/FkCQ45I.jpg

http://i.imgur.com/EEDdUqF.png
http://i.imgur.com/Y9pNJ24.png


6- After you select the areas and keep your Sim whole. Right Click on your pic and select " EDIT". Click " Fill up with Pattern".

http://i.imgur.com/OODDQPL.png
http://i.imgur.com/3fs5AUL.png


7 - Keep your mouse hovering over the pic and simply hit " Delete" on your Keyboard.

http://i.imgur.com/W9RttBm.png

8 - Go to File and click " Export As". Uncheck " Save background color" if it's checked.

http://i.imgur.com/MflVyVU.png
http://i.imgur.com/sZuVKXi.png
http://i.imgur.com/54iAMJu.png


9 - Name and Export to the desired Location.

http://i.imgur.com/QVmeGux.png


RESULTS :smile:

Original ( white background)
http://i.imgur.com/cxgo1zN.png

After ( No more background)
http://i.imgur.com/0T89dai.png


You can still give your Sim a bit of glow if you wish. Just adjust the Radius and Threshold in the Color Selection toolbox however you want like in the example I made below. It all depends on what you want the pic to look and feel like.

Harsh glow
http://i.imgur.com/nDU82s6.jpg

Softer glow
http://i.imgur.com/CfsIiFf.jpg