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Flickering.
show user profile  Cylon 2
Hi everyone, it's a been a long time since I've been in here. I took a break from 3D work for a while but I'm getting back into it now.

I have a two questions.

The first one is that I'm having a flickering problem with Mental Ray.

I'm panning up a character slowly on a turntable, and just one object (on his arm) is flickering, all other body parts are fine. All parts are textured with Arch Design materials.

I rendered the same model with a 'composite' material (standard base, wireframe on top) and there is no flickering at all. I'm stumped.

My other question is I want to know how to attach and detach an object during an animation, example, character put's a cup down on the table then walks away etc...

Cheers guys.

I updated my website since I was last on here, I've got a whole load of new stuff to get finished over the next few weeks / couple of months.

www.stevenpaulwheeler.com
read 346 times
3/19/2015 7:31:06 PM (last edit: 3/19/2015 7:32:12 PM)
show user profile  herfst1
First question sounds like a modelling error. I assume you don't have a duplicate copy overlapping... are your face's normals correctly flipped? Reset xform seems to always fix stuff but you'll lose your skinning. Can make a clone then use skin wrap to retrieve the skinning data.

Second question: use dummies. Select-and-link the cup to the dummy. Add a link modifier and link the dummy to World, can also add a second link to the hand_bone of your character. Set the hand_bone link's influence (or strength, or whatever) to zero. Now at the frame you want the character to pick up the cup, keyframe the hand_bone influence to 100% (or 1.0). Note: it's been a while since I did that, might have screwed up a few terms, but the thought process is correct.
read 330 times
3/19/2015 8:03:04 PM (last edit: 3/19/2015 8:04:38 PM)
show user profile  Cylon 2
Cheers Herfst.

Thanks for that. Luckily the part that is flickering is a piece of armour, so it's only linked to the bone of the arm. I'll try flipping the normals as you suggested.

Still confuses as me though as it rendered fine as a wire frame and as a clay render using light tracer in scanline.


read 324 times
3/19/2015 8:12:26 PM (last edit: 3/19/2015 8:12:26 PM)
show user profile  herfst1
Well I'm a vray user, so maybe there's some settings you can tweak like upping final gather.

In vray it helps to up secondary samples. Think that's the same as final gather.
read 317 times
3/19/2015 8:45:05 PM (last edit: 3/19/2015 8:45:05 PM)
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