Moon testing *A bit of an Update*

Started by Will, September 12, 2007, 05:33:52 PM

Previous topic - Next topic

RealUser

Yeah, the first one is definitely a moon. The second one is a bit too smooth. Some craters would touch it up, I would say too. Good work, I am curious to see the results of your experiments.
Markus / RealUser
...................................................................
visit my Renderosity Gallery at
http://www.renderosity.com/mod/gallery/browse.php?username=RealUser
...................................................................

Will

hmm Photoshop won't let me turn the TIFF into any other format which is weird, any idea on what to do guys?
The world is round... so you have to use spherical projection.

dhavalmistry

you can email me the tiffs and I can try something from my end....
"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Will

How big of an attachment can you get?
The world is round... so you have to use spherical projection.

dhavalmistry

"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Will

I can probably get it that small, might have to use a ZIP though. Thanks man :)
The world is round... so you have to use spherical projection.

dhavalmistry

#21
hey Will....what format you want them converted to???

**EDIT**

I have converted the tiff tile to BMP and ended up with 16MB file which when zipped, bumps down to 6MB

by the way the file is a 32-BIT TIFF, that is probably the main reason TG2 wasnt taking it. In order to convert it into different file format, you have to bring it down to 8-BIT

To do that all you have to do is in photoshop,

Image -> Mode -> 8-BIT

you can try this on your computer and see if it works, if not then I will email you the converted file.

I would suggest you to leave the file in TIFF format, that way you wont lose as much detail as you would do by converting it to BMP or JPG format.
"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Will

Hmm so it was the that fact that it was 32 bit huh. Anyway thanks for that, I converted it and I'm playing with it now, still trying to get the size right though.
The world is round... so you have to use spherical projection.

Will

Anyidea on how to get the texture to wrap properly? it seems like spherical projection isn't working out that well any ideas?
The world is round... so you have to use spherical projection.

bigben

I'm guessing that's because it's 16-bit? AFAIK TG2 only supports 8 bit RGB or greyscale TIFFs (I use LZW compression with no problems)

Will

nope I changed it to 8-bit via dhavalmistry's instructions. my problem now is that the maps resembles a unfolded box (if you were going to make a box out of paper) and thats not fitting the planet properly, I've tried a bunch of things but I'm still having trouble. I've worked with square images to displace planets before but not this irregular shape.
The world is round... so you have to use spherical projection.

Oshyan

It may be that specific support for Zbrush displacement maps will be necessary, at least for projection. It doesn't sound like they're made for standard spherical projection. If I recall correctly Zbrush has a unique way of making a "sphere", so perhaps this is why. If you can find out the actual method of texture projection that should be used that would help.

- Oshyan

j meyer

Hi,
if i got it right Will is using a polysphere and these are nothing
but a subdivided and spherized cube (unfolded it would be a
cross of 6 squares),so maybe a cube map would work,but i´m
not shure ´cause i didn´t tested it yet.

Oshyan

Yes, I was thinking cube possibly. Nonetheless we don't have cubic mapping at the moment, so no help there. ;) Perhaps there's a way in Zbrush to convert to other projections/mappings?

- Oshyan

SeerBlue

#29
Here is a link to info on zbrush displacement maps, Will, in case you haven't seen it yet
http://www.zbrush.info/site/index.php/Tool:Displacement_Subpalette
and one for displacement exporter, though I don't know if you are using 3.1 which it is in, so no need to download it.
http://www.zbrush.info/docs/index.php/Displacement_Exporter#Download

SeerBlue