AWAITING CONFIRMATION: Displacement map input

bfg900

Hi,

I would like to inquire about the displacement input map.
What kind of map can be used in ddo? 8, 16, 32 bit maps? Biased or unbiased?

I had several problems with that and it's not clear for me.

Tnahks for your response.
Peter

teddybergsman

Hi Peter,

DDO supports 16 and 8 bit displacements, where medium grey means no height, white means maximum height and black means maximum negative height. Here's an example:



I hope this helps!

- Teddy

bfg900

Thanks, it helped me a lot!
But I still don't know that this map is biased or unbiased.

bfg900

Since there is a height slider in 3DO it should be biased but I'm not sure.

Eric Ramberg

Maybe this is something that I should know but I´m not even sure I´ve heard the terms biased and unbiased, care to explain?

bfg900

Certainly. The unbiased displacement stores the displacement values in the positive range (0,1). This is xNornal's default setting.
The biased map stores the displacement values in both negative and positive ranges (-1,1).
I found no options to choose between these very important options.

Eric Ramberg

I can read the words but the sentence makes no sense This is above my head I guess, have you figured out this yourself by now or are you still waiting for an answer? I´ve asked around a bit and no one here seems to know the answer. Any way you know of how to find out the answer?