#Replacing Carpet in Pic
12-Aug-95 16:13:26
Sb: #184539-#Replacing Carpet in Pic
Fm: Steven Elliott 70303,1363
To: Brent Bonet 73617,2423
>>Yes, but how would you handle creating the transparency level of the alpha
>>channel?
Hi Brent,
If you habe the 3D Studio Special Effects book, you should carefully read
Martin Foster's Mountain Water effect starting on page 35. It is applicable
to what you are doing as well.
In short:
– Take the photo of your room into your favorite paint program. Paint all of
the floor areas touched by shadow pure black. Paint everything else pure
white.
– Place this image in the queue below the photo of the room with the floor
masked out.
– Use Queue RGB for Alpha with a Key Color of 255 and Blur edges ON.
– Use a Transition image of solid mid-gray to make the shadows
semi-transparent. You will need to experiment with a number of grays to get
just the right shadow transparency.
Reading Martin's effect should make the purpose of these steps crystal
clear.
Steven