3D-ROM uploads
14 messages in this thread
I was going to upload a few sample objects from the Syndesis 3D-ROM, but the
libraries are full! When will there be a little space?
A second question… one of the objects I was going to upload demonstrated a
question I had. The original data came from Imagine, which has randomly
oriented triangles. Since the normals are incorrect, and since InterChange
doesn't have a "unify normals" command (yet), the materials are set to
two-sided. On a region that was Phong shaded, even though the material was
two-sided, and I tried forcing and not forcing two-sided rendering, the area
was still rendered as if it were still one-sided. Other areas of the object
were just fine. Is there a conflict between Phong shading and one- or
two-sided materials?
Second, would be be better for InterChange to set Gouraud shading or Phong
shading, when translating a generalized "smooth" material attribute? Maybe I
should just put a switch on it…
2-sided mode works regardless of the shading mode, so I can't really tell
what's happening with your mesh. Regarding your second question, I'd say that
Phong is used 99 percent of the time (well, maybe 98), so I'd definitely go
with Phong over Gouraud.
– Jack
Another thing I discovered tonight. For sub-objects that had no faces, I
should create a "dummy" object. Without it, I couldn't find a way in the
Keyframer to select and rotate an object that had no faces. No way to
hit-detect it, right? Or is there another way to select and rotate a named
object? (I know how to do it in the 3D Editor.)
So I fixed this by making dummy objects for sub-objects with no triangles…
I'm not sure why you've got objects with no faces. Are you just trying to
convert other format's "dummy" or "null" objects over to ours?
– G
Exactly! Yahoos like me tend to do the "impossible" when we roll our own
routines to load and save file formats. What normally happens? Can I make a
regular object, delete all the faces? Is there still an object there, or does
it go away? I'll try this later…
Yes, you can delete all faces in an object and leave behind the vertices.
You're given the option to keep or discard the vertices when you do it. This is
for those who like to build objects one face at a time, using the Face/Build
command.
– J
Just had to but in. You mentioned something that may be a solve for a mesh I
have been battling with. If you delete the faces from an object and just leave
the vertices, how does that render? I suppose I could try it and find out,
acutally. Anyway, the problem I have been having, is I decided to try
re-creating some of the objects from 'TRON' just for fun, and the recognizer
was really easy. If you remember, it was all black with a red outline on the
edges. I fixed that one by making two copies on top of each other and rendering
one in black and the other in red wireframe, but on the tank, I can't do that
because it is too complicated and I would end up having a lot of lines where I
don't want them. By erasing the faces, could I then delete certain parts I
don't want from the mesh? I think I go try this…
though if you have a better suggestion, I'm willing to hear it.
Since faces are what the Renderer uses to reflect light, you're not going to
see much (if anything) if you render only vertices. But you're right when you
say you could "try it and find out." Experimentation is the best way to learn.
– J
If you delete faces from an object, only the undeleted faces render. (vertices
don't render at all).
– G
John,
Try hitting the "H" key in the keyframmer, it'll give you a list of objects to
manipulate (scale, rotate, etc)…
James
And a third question… in the 3D Editor, is there a way to perform the
Surface / Normals / Object Unify command on all the sub-objects at once? I
tried making select sets, but it always seemed to want me to click on an object
in a view.
Once you make a selection set, you turn on the SELECTED button and then just
click anywhere in a view. That'll do it for you.
– G
John,
Can you send me some info on your cd-rom? I head up a user's
group in florida. May have more than a few interested parties.
Rick Lapidus 71172,1451
John,
We get library space by the meg or three around here, but it doesn't last long.
These multi-media types like to deal in large files and it drives CIS
bonkers…….<g>.
There is space in the libraries now.