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armodillo
04-30-2017, 04:46 PM
how can i this rig ?

Help please

https://www.youtube.com/watch?v=i2aAyp6Wjos

MonroePoteet
05-01-2017, 09:07 AM
That isn't really how a real umbrella folds. Usually, a real umbrella has a rigid frame supporting the cloth, so it folds along specific edges. Here'a a good reference for a retractable umbrella, including a good diagram of the mechanism.

Here's a very quick model / scene which uses a Morph (created in Modeler) for the Folded umbrella from the "base", which is the umbrella unfolded. I didn't try to model the mechanical framework.

The Handle (Layer 2) is parented to the Umbrella (Layer 1), so you move the whole thing using Layer 1. The amount to which the morph is applied (i.e. the umbrella is folded) is controlled in the Object=>Properties=>Deform=>Morph Mixer panel. In the sample scene, there's an Envelope in Morph Mixer to unfold the Umbrella.

If you really want to have a continuously bendable umbrella, you could add more vertical segments to the cloth of the umbrella model. You might also check out the Bend Displacement Modifier in the Deform tab=>Add Displacement pulldown.

mTp

136695

armodillo
05-01-2017, 09:48 AM
That isn't really how a real umbrella folds. Usually, a real umbrella has a rigid frame supporting the cloth, so it folds along specific edges. Here'a a good reference for a retractable umbrella, including a good diagram of the mechanism.

Here's a very quick model / scene which uses a Morph (created in Modeler) for the Folded umbrella from the "base", which is the umbrella unfolded. I didn't try to model the mechanical framework.

The Handle (Layer 2) is parented to the Umbrella (Layer 1), so you move the whole thing using Layer 1. The amount to which the morph is applied (i.e. the umbrella is folded) is controlled in the Object=>Properties=>Deform=>Morph Mixer panel. In the sample scene, there's an Envelope in Morph Mixer to unfold the Umbrella.

If you really want to have a continuously bendable umbrella, you could add more vertical segments to the cloth of the umbrella model. You might also check out the Bend Displacement Modifier in the Deform tab=>Add Displacement pulldown.

mTp

136695




thank you so much for your helping :) :)

erikals
05-01-2017, 09:57 AM
yep, the LightWave community is pretty cool   :king:

MonroePoteet
05-01-2017, 11:10 AM
I forgot to paste the URL for the retractable umbrella reference:

https://wiki.ece.cmu.edu/ddl/index.php/Retractable_umbrella

mTp

armodillo
05-01-2017, 01:17 PM
I forgot to paste the URL for the retractable umbrella reference:

https://wiki.ece.cmu.edu/ddl/index.php/Retractable_umbrella

mTp


thank you but too much detail for me :):):):):)

thanks again :)

MonroePoteet
05-01-2017, 02:33 PM
thank you but too much detail for me :):):):):)

thanks again :)

Yes, but if you ever need to animate a *detailed* umbrella, it'd be invaluable! :)

BTW, here's the key diagram from that site:

https://wiki.ece.cmu.edu/ddl/index.php/Image:Umbrella_Arm3.jpg

Best of luck!

mTp

MonroePoteet
05-01-2017, 03:11 PM
I wanted to add: understanding the underlying mechanism of how a retractable umbrella works allowed me to view the original post's video reference as an incorrect representation of reality. I think that at least perusing reference information about how real-life phenomena work helps us as animators to avoid gaffes that are apparent to the (very, VERY discerning) audience.

Again: just my opinion.

mTp