#2 questions
10 messages in this thread
Here are a couple of unrelated questions that popped up while I was working on
something recently.
1) I rotated a fairly large plane I was using to make some clouds and the got
a "world octree is too large" error message when I tried to render. Rotating
the plane back took care of the problem, as did selecting everything in the
scene and scaling down. but I don't know what the world octree size even is.
I know more or less about octree levels (which I have set to the max in
preferences) but world octree size is a mystery. Any one willing to enlighten
me?
2) Has anyone else found that the defocussing in Imagine's DOF is pretty
abrupt? Trying to get some depth of field into an outdoor scene with a
receding pattern in the ground, I found a definite line where things went out
of focus almost at once. I think I am doing the DOF setup right. I am using
the actual camera y size to set the depth of field because this is the only
method I can comprehend. Is this causing my abrupt defocussing?
Michael
Michael,
The world octree size error means that your scene is too large, that is, the
area it's occupying has exceeded Imagine's world. The way to resolve this is
to scale down the scene. Forgive me, but I don't recall Imagine's world
coordinate limits. If you try to create objects that are 1:1 in size (1unit =
1inch) or at least close to that, you shouldn't have a problem. Also, to avoid
this happening when ceating ground planes, or sky planes, use the primitive
GROUND object. Imagine handles this differently, and won't give you an octree
volume error.
As for the DOF, maybe someone else can jump in….I just haven't used it yet.
-GreG
>> The world octree size error means that your scene is too large, that is,
the area it's occupying has exceeded Imagine's world. The way to resolve this
is to scale down the scene. <<
One thing that kind of sucks is that you have to scale it down in the detail
editor, not the stage editor. I had a whole scene set up with the camera and
everything and got the world octree error. I selected everything and scaled it
down to about 20 units and it didn't do any good. Had to go back to the detail
editor and scale everything down then go back to the stage editor and try to re
adjust the camera. Of course if I had done things right in the first place I
never would have had this problem.
-Sam J. Bowling
>>
One thing that kind of sucks is that you have to scale it down in the detail
editor, not the stage editor.
<<
Sam-
I got the WORLD OCTREE error before also and I scaled the entire scene, camera
and lights and objects, in the STAGE editor and it took care of the problem in
my situation. It only took a few minutes to select *everyting* in the scene
and scale it down together. The scene stayed in tact and all was fine. Just
thought I'd let you know that it did work and is much easier that trying to
reconstruct the scene placement.
Darin
>> The scene stayed in tact and all was fine. Just thought I'd let you know
that it did work and is much easier that trying to reconstruct the scene
placement. <<
Really? I scaled it down to about 20 (grid size) in the stage editor and still
got the error message. Strange.
-Sam J. Bowling
>>
Really? I scaled it down to about 20 (grid size) in the stage editor and still
got the error message. Strange.
<<
Sam-
Yep, really. I don't know, man. I never had any problems doing it this way.
You seem to be plagued with nasty little annoyances lately. Good luck with the
crash thing…you gotta hate that.
Darin
>> You seem to be plagued with nasty little annoyances lately. Good luck
with the crash thing…you gotta hate that. <<
Seems like it.<g> Well The scaling thing was a user error, so that's taken
care of and hopefully the reinstall will take care of the crashes.
-Sam J. Bowling
Sam,
You should be be able to select all (shift-a) and scale the scene down within
the stage editor. By all, that includes the camera and lights. This will keep
all relative positions intact. Of course, you must update the SIZE bar for the
objects for it to take effect. You may also have to re-enter the frame to do a
quickrender in order to have Imagine dynamically re-define the octree volume.
-GreG
>> Of course, you must update the SIZE bar for the objects for it to take
effect. <<
Aha! I think you hit it right there.<g> User error!!! (the most common kind)
-Sam J. Bowling
Michael,
Last time I checked, the world size in Imagine was 16,000 units for
ray-tracing and 32,000 in scanline. 'Trouble is, I can't remember whether
that's 16,000 units in any direction, or 16,000 in size (namely 8000 units in
any direction). Scanline is supposed to be theoretically of unlimited sized,
but Imagine starts to choke if you go out more that 32,000 units from the world
origin. And the zoom and scroll won't let you get much farther out than that
either.
On the other hand, don't get overzealous and compress you geometry down
too small, because then you'll be cramming too many polygons into an Octree,
and rendering speed will begin to suffer.
-Tim