Hi Folks

since updating to 15.g or H I have been having theses strange anomaly's happen intermittently. I am not sure whats causing this occasionally hitting the space bar corrects the problem but sometimes it doesn't. Sometimes rebooting works but sometimes it happens on some models and not others no rhyme or reason. its very difficult if not imossable to work around when I have a chor with lots of models.

Any thoughts any ideas?

As you can see the problem appears and sometimes its gone. But most importantly it renders exactly how it looks in the shaded view.


Click to view attachment

Click to view attachment

Click to view attachment

Click to view attachment

The crease looks like its modeled in but its not the surface is perfectly flat in the modeling window.
Click to view attachment

Click to view attachment

The crease went away when I hit the space bar. here

Click to view attachment

I would guess that has to do with having all of those deadend splines on that central patch. I avoid deadenders unless they can be hidden somewhere discrete, and peferably somewhere that won't be animated. It is unfortunate but using four deadend splines on one very prominant patch like that is just asking for trouble.

I understand, but thats a tough pill to swallow since the head of this model is simply a stock model from the Hash library that comes with AM. It only started happening in Version G and H. So are you telling me that the stock library models are modeled in a flawed way and AM cant render properly its own models that it provides.

Dont mean to sound harsh. Its just frustrating.

Best file in a report and wait , what Yoda says.

He is on version i though to get rid of some flaws anyway.
Maybe that will solve your problems as well....

patience I have learned during many hard years learning AM is always
a good advisor.

Maybe turning to something different for the time being will cool off the frustration.

If it helps, you are not alone. We have all been there, once or twice.....

(my god, starting to sound like some old wise man from the mountains, while remembering
how often I was at the verge of frustration...)

I have never seen this model before, but then again the only Hash model that I have ever played around with is Thom. As far as I am aware the models that come with A:M are all contributed by users and it is very unlikely that they have all been vetted by Hash Inc.

My advice stands. Get rid if the deadenders.
Click to view attachment

----------------------
That's my last one folks.

I guess that was the cylinder primitive? Can you make the original model do that?

Are all the splines peaked?

I would connect the cp's and not have them just end along an edge to play it safe. Having that diamond patch in the middle seems kind of shaky geometry wise.

What did work is I made a square using with pig tales so that I didn't need to worry about making corner cp's. I then made sure it was aligned in the z by scaling 0% and connected it to the cylinder. I extruded the cylinder temporarily and connected the inner ring to the square. Both shapes seem to render fine.

I think John is right and you may have put in some peaked cp's.

If all this seems kind of complex because I am horrible at explaining I can make a little video and post it.

Hey jason, you're lucky that what you're seeing actually coincides with some splines. I was getting artifacts in my Christmas animation that didn't correspond to anything that actually existed in the model or choreography. I did post queries about that yellow shape appearing in the middle of a render, but there were other artifacts that i never mentioned here. Some I fixed and some I just left because they were onscreen for just a couple of frames. But I'll take an artifact arising from a spline than one appearing from nowhere anyday!

Also, the models in the library or the extras cd do need to be tweaked sometimes, just like 3D text often needs some splines recreated, refined or moved.

Uhmm... yeah, that does sound harsh.

A:M forums are a great place to get help and everyone here is extremely helpful and cordial. As mentioned earlier, the models that come with A:M are provided by the many different users who have graciously donated them. You can always check in the properties under the File Info and see who donated the model. They may be able to provide some insight as to why something was modelled in a particular way. Some of the models are quite old, and A:M may have handled things a bit differently back then, which possibly could cause some problems in how they act and behave now. If I use anything from the library, than I almost always expect to tweak it to suit my needs. If it works as-is, then that is a bonus.

Anyway, as Paul mentioned, you don't need all those extra CPs and splines in the center of the cylinder face. In fact, if you want, you only need to have one spline joining two opposing CPs in order to close the face of the cylinder. I have found that in Paul's example, if the center CP is not in the same plane as the 4 edge CPs of the cylinder, you can still get some weird artifacts, especially if the center CP is accidentally peaked.

Al

Unstable patches will do that. I'm using 15g (dropped back from h becuase of texture issues) and don't seem to have any problems. It is so easy to click away on a cp and not connect them correctly, I have done that so many times. Here is how I made that same shape and it renders fine.

Sorry I don't have any mpg converters on this system need to find a good converter for this sort of thing.

Note that when possible I draw past what I really want.

I looked at your THing_Test model and it's not quite the same as the Cylinder Primitive. What stock A:M model is it?

Good question, ill try

yes

I here ya

Yes i altered it but I did not alter the part with the issue.


I think I have found a work around. If I experience the problem. I will create a tutorial later

You think. I've used that unaltered cylinder quite a bit and not had a problem like that.

your doing it wrong