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Old May 20, 2016   #11
nikosefs
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Originally Posted by Ezeth View Post
In a bumpmap the brighter the color is the more elevated the surface is. 50% grey is not elevated or lowered, but neutral. Black is lowered the most amount.

so basically,its better to greyscale the image before making the map?
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Old May 22, 2016   #12
Ezeth
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Originally Posted by nikosefs View Post
so basically,its better to greyscale the image before making the map?

no, thats only true for bumpmaps, This is a normalmap.
You have more power with the normalmap since you can control 3 directions instead of 2, a bumpmap can just control upwards and downwards (black and white) while a normal map have 3 directions in RGB. A normal map doesn't just tell the elevation of the surface but also which direction the surface is facing.
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Old May 22, 2016   #13
nikosefs
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hmm im confused now,would you mind checking the info
on this?

http://www.katsbits.com/tutorials/te...-or-images.php

because it mentions "grey scale" multiple times,and the maps
he made was from a grey scale.

edit: and in this one :
http://www.katsbits.com/tutorials/te...rom-images.php

White Is Height, Black Is Back ^



it looks to me that what you are saying is about:

RGB Orientation ^


Last edited by nikosefs; May 22, 2016 at 09:51 AM..
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Old May 23, 2016   #14
Ezeth
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yeah this guy just makes the images greyscale first and then convert them to RGB, the final outcome is still RGB. I mean it does makes sense to make the images greyscale to get a better control of the values. I just misunderstood you a little bit when you said "so basically,its better to greyscale the image before making the map?"

Yes making them greyscale first does make a lot of sense, seeing as it is easier to control the values that way.

Last edited by Ezeth; May 23, 2016 at 02:12 AM..
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