#Lumena-3ds3 problem
4 messages in this thread
Jonas;
In trying to map an image created in Time Arts Lumena on a mesh created
in 3ds3; I have noticed a couple of things recently:
1. The image comes up in 3ds with a reduced contrast range
usually favoring the higher end of the contrast range.(i.e.
much lighter darks than I created). I believe the problem
is in 3ds3 because; I can call up the image in a 3rd party
viewing utility, and the image looks as I created it. I call
the same image with 3ds3 Render\View..\Image; and it
has reduced contrast range.
2. I started with an image pulled from the World Creating CD
added added to it in Lumena, and then tried to map it on a
mesh object. The part of the image from the CD went almost
completely dark while the part added in Lumena had the
problem described above.
These are problems that have popped up since I upgraded to 3ds3 from
3ds2. Any ideas?
Thanx;
Dave
Dave,
<< The image comes up in 3ds with a reduced contrast range
usually favoring the higher end of the contrast range.(i.e.
much lighter darks than I created). I believe the problem
is in 3ds3 because; I can call up the image in a 3rd party
viewing utility, and the image looks as I created it. I call
the same image with 3ds3 Render\View..\Image; and it
has reduced contrast range. >>
This sounds like a gamma issue. First read pg 4 of the advanced
user's guide for r3 for an explanation of gamma. Second, read
pg 3-15 for more details to file input gamma, display gamma,
output file gamma, and display gamma. Third, set your date back
on your "Messages-Set Date" a week and scroll through the messages
looking for a description of Gamma. You'll find many. Gamma is
being talked about in a number of places recently.
jonas[adesk]
PMJI, but it sounds like the various images were created with, or while
monitoring with different gamma settings, and the input gamma in 3DS does not
correspond. Turn off all gamma correction in 3DS (or at least INPUT gamma) and
view the Lumena images – do they look right now ?
BILL
It's definitely a gamma problem. You didn't mention if the Lumena files were
Targa files. If so, perhaps Lumena is embedding bogus gamma data. In addition
to the other suggestions, you might try turning off the USE-TGA-GAMMA setting
in the 3ds.set file and see how that affects things.
– Jack