Flow??? Just wanna play with it....but I can't make this work
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 From:  Michael Gibson
4550.2 In reply to 4550.1 
Hi Chris,

> The wording that flow uses seems terribly confusing. :(

I'm not really sure how to make it any more simple...

I mean the way it works is you pick a base object as the reference spinal column going through your object, and then you pick a target object to use as the new spinal column.

What is it that you find confusing about the wording?

I honestly don't know how I could make it any easier, let me know if you have any ideas.

- Michael
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 From:  Michael Gibson
4550.3 In reply to 4550.1 
Hi Chris - so the way Flow works is that you have some objects you want to morph.

So you select those objects you want to morph and then you need to pick 2 surfaces to define how the morphing will take place - you pick a base surface (usually a plane), and then a target surface.

So those are 3 different pieces that you need to have:

1 - objects to morph

2 - base plane surface

3 - target surface


The problem is that in your attached file you are missing the #2 base plane object, you seem to only have an object to morph and then a target.

You need to create a plane object that is positioned around your object that is being deformed to define the base position.

- Michael
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 From:  Michael Gibson
4550.4 In reply to 4550.1 
Hi Chris - check out the attached 3DM file for a version that should show you how you need to have it set up.

So note that I've added another object in there - there is a plane surface that is underneath the object that you want to morph. That's the base surface.

To do the Flow, start by selecting the object you want to deform, it should look like this (note only the object above the plane is selected, the plane underneath it is _not_ selected yet):



Then run the Transform > Deform > Flow command.

The prompt will say:



Now pick the plane underneath the object - that's what has been set up to be the base surface.

Then the prompt says:



Now go pick the curved surface on the inside of your piece where you want to place the morph onto.

That will produce this result:



There are a couple of different things that can trip you up a bit easily in this first beta - one is that this first version of flow works by matching the "underlying surfaces" which are sometimes larger than what you see on the screen if there have been some trimming or booleans done to them. If that's the case then you will need to use the ShrinkTrimmedSrf command to shrink those surfaces down to their trim boundaries. See this previous post for more info on this issue:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4442.6

That step won't be necessary in the next v3 beta - in the next v3 beta it will do that automatically.

Then the other thing is that in this first v3 beta it only matches between the base surface's natural UV directions to the target's natural UV directions, and if one surface for example happens to have its U direction going vertically instead of horizontally that can produce a rotation effect that you don't want. If you run into that then you need to rotate the base plane around or possibly flip it around its diagonal axis to get the U and V directions how you need them.

That also won't be necessary in the next v3 beta either because there will instead be a method that will match the UVs up according to which corner area you click on each surface, see this other post for more info on that:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4442.24

So anyway the next v3 beta will have some tuneups to make Flow easier to manage.

- Michael

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 From:  Rich_Art
4550.5 In reply to 4550.4 
>>I honestly don't know how I could make it any easier<<

Indeed it is very easy already... :-)

Peace,
Rich_Art. ;-)

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 From:  FlashFire
4550.6 In reply to 4550.4 
Hey thanks a bunch. I knew I couldn't of been following the right procedure.
I kept trying with a line for my backbone, and even tried with a plane that matched
the same size as the flow object. But never got it right.....

I have Moi forums as my browser home page. Just now jumped to surf the web and read your reply.
Followed your tutorial and created this fun little doodle :) What a crazy cool time saver.
I see fun space ship making

I noticed the questions flow asks when done right are easier to figure out ;)

BTW I did get that rotation effect last night...How can I see uv's?
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 From:  Michael Gibson
4550.7 In reply to 4550.6 
Hi Chris,

> Hey thanks a bunch. I knew I couldn't of been following the
> right procedure.
> I kept trying with a line for my backbone, <...>

If you use a line as the base backbone, then you'll be using a curve as the target object instead of a surface.

Basically you can either do flow using a curve to a curve, or surface to a surface.


> BTW I did get that rotation effect last night...How can I see uv's?

There isn't really any way to see them right now - but if you can clearly see that the result is 90 degrees rotated from what you want then it means that the U and V axes need to be swapped. You can do that by rotating your plane by 180 degrees around its diagonal. That won't be necessary in the next beta release which will swap and flip U V directions as necessary to make the corners that you click nearest to match up.

- Michael
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