Hi RS3D´ler,
why use a onother prg ?
I think the UV tool in RS3D is very good. Look in this forum.
http://www.3ddart.org/index.php?name=PNphpBB2&file=viewtopic&t=506
Best regards
Stefan
Aidan O Driscoll schrieb:
Hi Guys,
After my big long rant mail - heres another one - this time not a rant,
but maybe very positive stuff.
As I said previously I THINK the core important elements of any 3D app
is solid MODELLING, TEXTURING and ANIMATION tools / features. One of
these things - TEXTURING - I think is most important - it gives life to
the mesh. To this end I went hunting for decent UV UNWrap apps. I found
the following called ULTIMATE UNWRAP 3D:
http://www.unwrap3d.com
The demo is at the Download page and is fully functional except for
export / save.
To get out of RS into this app, just export your mesh as an OBJ. The
basic operation when inside Unwrap is that one selects faces - say
front Torso then map them [ with tools ] to Unwraps UV Editor. The
Unwrap work area is divided up into the UV Editor on the left and a
Perspective Model View on the right. Once this is done move the torso
map off to the side of the UV Editor live area, do the same for the
back torso faces, the legs front, back etc. Once you have all your
separate maps for all the mesh parts done - organise them all inside
the defined UV Editor 'Live' space window. No overlaps. Its like a game
of Tetris :)
This is then exported out as a BMP or JPG - whichever, then into your
Paint app - Photoshop, Paint Shop Pro, Gimp. Once here you can texture
the various parts differently, skin tones for the arms, blah blah. Once
this is done save it and then back into the UNWRAP app. Here one
imports the textured map file and applies it to the Mesh [ the original
OBJ you imported ]. A bit of tweaking to fix stretching and thats it.
Now EXPORT as an OBJ again WITH Materials.
Here is a screen shot of the UNWRAP app with my simple model inside and
the UV MAPs to the left:
http://www.tidalsound.com/3dstuff/jan06/unwrap.jpg
Now open RS - Load the OBJ File you created in Unwrap. Make sure UV
Coords as: is set to per face Materials in the load options window.
Keep in mind the INVERT V COORD option, more on that in the minute. Say
OK. Now select the mesh itself and then the WINDOW Menu, UV Editor
option. Nothing displayed. Right Click and at the end of the menu is
the Mesh Name, select this. Magically [ :) ] the UV Maps will appear,
but hey, no texture map under it. OK, have a look in your materials tab
over left. You will notice maybe two empty materials. Select the first
one, double click for properties, add a TEXTURE MAP Wizard and load the
TEXTURE you created in your paint app earlier. DO NOT APPLY THIS or MAP
IT AS YOU USUALLY WOULD. Just look, notice the texture is now applied
to the mesh. Open up your UV Editor once more - now you should see the
texture under the UV Map.
If the map is up-right and the texture upside down then this is where
you needed to have clicked the INVERT V COORD option when you loaded
the file. Dump the current file and just reload the OBJ into a new file
with INVERT V COORD option selected. Now you should be alright. Render
it and thats it.
While messing with UV-SETS I found a problem when applying textures to
SMOOTH as opposed to POLYGONAL meshes. With smooth - distortions
occurred. Apparently I am told that this is a bug in RS. The wisdom I
got was to separate all the components of the mesh - break off hands,
legs, torso etc - anything with a different texture and create your
model out of parts. This may not be satisfactory. I think one can avoid
this with the UNWRAP app. In this app just create SEPARATE UV MAP PARTS
for each of the mesh parts with different textures.
So - I would like to hear from others who might like to download this
app [ the demo - 1.5mb ] and try it. Unfortunately the demo does not
have export or save, but the rest works. To see what it is like to
export and move to RS here is a link to zipped file containing the OBJ
Mesh, the MTL Material File and the JPG TEXTURE. [ This texture may
look a mess and look basic, but it was only for experimentation]:
http://www.tidalsound.com/3dstuff/jan06/Realsoft.zip
To purchase the app - it will not break the bank: About $45. Yes - I
bought it!
Above - I have skimmed through the process. For a more comprehensive
version go here, very good one off tute:
http://www.geocities.com/jhocking15213/unwrap/tutorial_char.html?20062
AN APPEAL TO THE RS MOTHERSHIP:
What would be nice is a NATIVE RS Import/Export plugin to / from this
app OR a UV app like it. I think it would be worth approving this app
to work with RS. It does one thing very good - UV - an important part
of texturing.
Here is a list of apps already on board with import / export:
http://www.unwrap3d.com/formats.aspx
Thanks for reading, least of all I hope it may have given an insight
into texture / UV mapping in 3D.
Feedback as always appreciated,
Cheers
Aidan
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