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Weird outline

Posted by Marius Oberholster on Thursday, October 8, 2015 Under: Tips
Hey all!

This morning again, I came across a very familiar problem, that typically doesn't bother me, but today it really did bug me and it is an outline that forms when you use transparency in Blender Render. It looks like this:


(Simply scaling up doesn't help - the outline scales too and it's always the color of the sky)

The reason for this, I don't know, but I do know when it does it; when using Z-Transparency. Usually the fastest method and compatible with the mist feature, it does have it's greatest draw-back in that it creates that weird outline. In certain compositing situations, it really is just a deal breaker for a good result, so I tried switching to RayTrace after some prompting of the HOLY SPIRIT and what do you know, problem solved! No more outlines. Now, RayTrace is a slower form of transparency and does not have the compatibility with the mist feature, but I would take compositing difficulty over render difficulty for the simple reason that what I wanted to do, was do-able in the compositor, but not in 3D directly and so RayTrace was the better choice.

I would strongly suggest that when you can use Z-Transparency, to do so, because of it's speed, but if you can't, use RayTrace. I thought there was no difference, except that one allowed distortion of light coming through it, but no, there is more to it, as you can see above.

So to end this quick tip, I leave you with this: Use whatever is best and quickest for your scene; don't fall for the "we'll fix it in post" syndrome - some things you just can't reasonably or practically fix in post.

Do you know JESUS yet?

Have a great one!!
GOD bless you!

In : Tips 


Tags: god  jesus  holy spirit  blender  transparency outline 

"For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.
He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus.
The grace of our Lord Jesus Christ be with you all. Amen." Revelation 22:18-21

"Add thou not unto his words, lest he reprove thee, and thou be found a liar." Proverbs 30:6

King James Version, Public Domain

About Me


Marius Oberholster Hey! I've been doing this full-time since July of 2011. It has been an incredible learning experience, not only learning how Blender works (still learning), but also about Open-Source and the incredible software available. ----------- This Blog will be a way to stay up to date on all things Panther Dynamics as well as some personal stuff as well.

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