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Displacement Insanity

Posted: Thu Apr 07, 2016 6:25 am
by aggiechase37
Displacement works in Live Viewer, but not in the Picture Viewer. Can't find any other circumstance where this is the case. Help please!

Re: Displacement Insanity

Posted: Thu Apr 07, 2016 3:03 pm
by bepeg4d
Hi aggiechase37,
sorry but I have tried your scene and I wasn't able to see any differences between LV and PV, at least with v3 alpha 6.2 :roll:
anyway it seems that you have some weird scale settings, a couple of instance objects are inside their reference and the film buffer is set to 8bit instead of Floatbuffer:roll:
ciao beppe

Re: Displacement Insanity

Posted: Thu Apr 07, 2016 8:00 pm
by aggiechase37
I'm using the 2.25 latest version. Maybe that is the culprit...?

Re: Displacement Insanity

Posted: Thu Apr 07, 2016 8:05 pm
by aggiechase37
I actually got it going by changing "geometry control" to "all objects movable." But this absolutely killed render time. Goes from 10 minutes per frame to close to 2 hours...

Re: Displacement Insanity

Posted: Thu Apr 07, 2016 8:18 pm
by aggiechase37
Downloaded 3.0 alpha. Still had to check "all objects movable" otherwise top screw is flat, and render time still horrendous. But it's down to an hour! There's got to be a better solution.

Also, what does that mean "couple of instance objects are inside their reference?" I did scale up those connectors. The room is good scale, but the connectors are usually about 4 inches and scaled them to be about 6 feet, like they're soldiers in the room waiting to be deployed. Not sure if that would have something to do with it...

Re: Displacement Insanity

Posted: Thu Apr 07, 2016 8:40 pm
by aoktar
1- Disable Sci-Fi-3D-Room Instance and Sci-Fi-3D-Room Instance.1. They are referencing to their parents and causing two more copies of all model at same point.
2- Disable displacements and use models rather than them. It seems making very slow in case.
3- Don use 8-bit buffer, use float(tonemapped)

Most criticals are these. Keep all render settings on default if you don't know background of that how works. Auto mode is best for non-expert users. It decide to which is best for you.

Here is optimised scene without displacement. It's about 2:30 with PT on me.

Re: Displacement Insanity

Posted: Fri Apr 08, 2016 2:27 am
by aggiechase37
Thanks Aoktar! I certainly appreciate it. I'm in Central Time U.S.

I'll have to figure out a decent way to make those screws. It took me forever to figure out the displacement trick. Displacer effector seems to be buggy or something on C4D R16.050. Can't get a gradient to stick. It always gets stuck, and then resets a plane to flat. Anyone out there know any nifty modeling tricks to make screw threads? (And don't say anything about the helix spline. I can't get it to terminate at the end correctly)

Re: Displacement Insanity

Posted: Fri Apr 08, 2016 3:19 am
by aggiechase37
Ok figured out a pretty decent system for threads. If anyone needs it I'll leave it here.

Re: Displacement Insanity

Posted: Fri Apr 08, 2016 10:04 am
by atome451
You may also use a curved spline and a Lathe Nurbs with a Movement and a higher Angle (like 3600° by sample). ;)
screws.zip
a sample
(196.51 KiB) Downloaded 139 times

Re: Displacement Insanity

Posted: Sat Apr 09, 2016 3:18 am
by aggiechase37
That's a pretty good idea too. Thanks friend.