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vasilnatalie — Integrating soft body breast physics for Blender by

#blender #physics #tutorial
Published: 2020-01-14 18:34:12 +0000 UTC; Views: 14688; Favourites: 81; Downloads: 154
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Description

I was asked about breast physics by PhaazePaz , so that's what I wrote.  It's not really very specific to breasts though-- you can use similar techniques anywhere.  Surface deforms are sometimes a better way to transfer than mesh deforms.


I think it's important to understand why you're doing what you're doing, so there are more words than some people might appreciate.  I tried to use pink boxes to highlight the exact steps to follow for people that get frustrated by the explanations and jargon. 


The important thing with Blender physics is just, do it indirectly!  You're not going to get anywhere by trying to use physics on the same meshes you render.  Physics and rendering demand different topology.


I'm sorry that I couldn't include any animated demonstrations.  As it is, the image is like 20mb, and some of the text is already a little hard to read.


There's more that's worth saying, but I didn't think anybody would read it if I said it.  Feel free to ask questions.

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Comments: 19

malistaticy [2021-05-17 10:11:45 +0000 UTC]

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BJbear2001 [2020-06-09 23:10:23 +0000 UTC]

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lwp513202035 [2020-04-23 19:51:16 +0000 UTC]

Your method is different from all the tutorials I have seen before, and it is very efficient and useful. Can I reprint this tutorial to another website for more people to see(of course I will indicate your name and link to this tutorial)? In addition, I want to be honest that I plan to translate your tutorial into Chinese. During this difficult time, the people of many countries in the world have become very hostile to the Chinese. There is no absolute right or wrong. In other words, I hope that the exchange of knowledge does not involve politics (but in fact, I have been exposed to language attacks on several educational channels because I exposed myself as Chinese). So I cautiously ask for your permission. If you disagree, just refuse me, that's alright.

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vasilnatalie In reply to lwp513202035 [2020-04-23 20:03:21 +0000 UTC]

Of course, feel free!  Translation is awesome-- sometimes I feel kind of bad about the DA format, which makes it difficult to use auto-translation.


If you feel like it, link me the translation, it'd be cool to see.  There's no need to credit me if it's at all cumbersome, but you can if you want.


I'm glad it's been useful for you.  I'm sorry about the current hostility toward Chinese people.  That hostility is stupid and hurtful.  One of the coolest things about DA is getting to interact with people from all over the world.

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lwp513202035 [2020-04-23 16:59:54 +0000 UTC]

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PhaazePaz [2020-01-18 06:06:40 +0000 UTC]

I really appreciate it, your tutorial has helped me a lot and I just hope to be able to make animations soon with my characters
Thank you

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vasilnatalie In reply to PhaazePaz [2020-01-21 21:18:37 +0000 UTC]

Cool, I'm glad it's useful for you.

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afoldingchair [2020-01-15 00:21:25 +0000 UTC]

you literally made a full ass tutorial for tiity physics wtf

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vasilnatalie In reply to afoldingchair [2020-01-15 00:51:41 +0000 UTC]

You think people are born knowing how to make what you want to see?

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Aleerajewelart [2020-01-14 23:32:18 +0000 UTC]

Boob boob Booby physics!!! 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 I want boobies

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vasilnatalie In reply to Aleerajewelart [2020-01-15 00:52:04 +0000 UTC]

Boob boob boob boob boob.  Boob?  Boob!


In conclusion, boob.

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Aleerajewelart In reply to vasilnatalie [2020-01-15 20:21:41 +0000 UTC]

I must be imature for doing this right!

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vasilnatalie In reply to Aleerajewelart [2020-01-15 21:33:41 +0000 UTC]

When I was a kid, I was in the cub scouts (for about two minutes) and there was this kid in my troop who would just start screaming "Sex! Sex!" and giggle maniacally.  I thought he was so immature.  As I grow older, I realize, no, I was the immature one.  The only appropriate behavior for adults is to scream "Sex!" and giggle hysterically.  Everything else is just playing with dolls.  (Unless you're furiously rubbing Barbie's smooth privates against Ken's or another Barbie's, in which case, cool, keep doing that.)

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Aleerajewelart In reply to vasilnatalie [2020-01-15 22:20:34 +0000 UTC]

Yeah

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Aleerajewelart [2020-01-14 23:31:35 +0000 UTC]

boob Physica!!!!!!!!! XD 🤣

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blackdidthis [2020-01-14 19:28:04 +0000 UTC]

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vasilnatalie In reply to blackdidthis [2020-01-14 20:11:28 +0000 UTC]

Wow, thanks!  Glad you like it.  There is a *lot* that I wanted to explain, but I didn't think there was room (or audience patience) for it all.  Transformation spaces in regards to the dynamic bind, how the interpolated deformer affects collision and how you can add *another* layer of indirection to fix that, how "bending" works and why it's not going to do what you want on a high poly mesh.....  I guess peeps can always ask.  I've found that a lot of Blender tutorials are pretty much crap that encourage bad practices and fail to explain very much.  I can kind of understand though, I generally want to write a tutorial *right after* I learn some cool thing, before I fully understand it.

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Luthien-Merilin In reply to vasilnatalie [2020-05-05 12:36:37 +0000 UTC]

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vasilnatalie In reply to Luthien-Merilin [2020-05-05 15:52:15 +0000 UTC]

I'm glad it was useful for you!  I'm not much of a fan of video tutorials either, although a lot of people seem to like them.  And yeah, it does seem like a lot of tutorials focus on "how to make this thing" rather than "how to use this class of tools."  There are times that works-- like BlenderGuru's doughnuts or anvils are really just introductions, for complete newbs, to some of the basic tools they're going to want to use, not really tutorials on how to make doughnuts lol.  But there are a lot of tutorial makers who don't actually know that much, unfortunately.  It's not like Youtube asks for a photocopy of your Blender Educator Certificate when you upload a video.


If you're like me, where you find it a lot more useful to deal with text, you might consider looking at actual, physical books instead.  If you've got a local library, they can probably get nearly anything via interlibrary loans.  And looking at books not aimed at Blender is a really good idea for getting concepts.  Most of the stuff Blender does isn't really all that unique to Blender.

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