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Clear materials- Without cheating.

Printed From: Pixel Joint
Category: The Lounge
Forum Name: Resources and Support
Forum Discription: Help your fellow pixel artists out with links to good tutorials, other forums, software, fonts, etc. Bugs and support issues should go here as well.
URL: https://pixeljoint.com/forum/forum_posts.asp?TID=6049
Printed Date: 06 September 2025 at 7:18am


Topic: Clear materials- Without cheating.
Posted By: Pixel_Outlaw
Subject: Clear materials- Without cheating.
Date Posted: 18 February 2008 at 11:00am
 
This small tutorial should show you how to have transparent looking glass and plastic without using ANY alpha or layers. Another math tastic tut from me. I wanted to provide people who use MS paint a way to get transparent looking glass and such. No layers no transparency ANYWHERE. All solid colors with no transparent channel.
 
 
I'll show you how to fill this pool with water and NOT use alpha transparency layers.
 
http://imageshack.us">
 
.PDF
http://myfreefilehosting.com/f/0b6f2ae879_0.06MB - http://myfreefilehosting.com/f/0b6f2ae879_0.06MB


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Replies:
Posted By: Dra_chan
Date Posted: 18 February 2008 at 3:25pm
Thanks for posting this tutorial. It was very informative but easy and simple at the same time. 


Posted By: Metaru
Date Posted: 19 February 2008 at 8:43pm
hmm. indeed. its basically how to do the calculation that an alpha layer does by hand, isn't?


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I ate leel's babies


Posted By: Pixel_Outlaw
Date Posted: 19 February 2008 at 8:49pm
It mimics the effect of some transparency but programs may do it differently. There are many ways to do this. I can think of about 2 different processes. So no, I can't say that all transparent layers use this calculation. I do guarantee a perfect result however.
 
DO note that some colors blend to pure gray. This is correct because light colors do not behave like pigment colors.
 
for example
 
Pure blue + Pure Yellow= Gray
 
Blue 0, 0, 255 + Yellow 255, 255, 0 will turn gray at 50 percent transparency. This color seems to be incorrect, but it is correct.
 
If you want to see this bizarre fact try the experiment in a program that handles alpha. If the programmer did their job correctly, you will get gray.
 



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Posted By: Metaru
Date Posted: 23 February 2008 at 7:08am
yeah, I was reading about the color theory the other day and noticed the diference between additive and sustractive colors.


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I ate leel's babies



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