Deformer tests

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Deformer tests

Post by clintonman » 05 Oct 2019, 20:11



My tests for developing a bend deformer for truespace based on the bend deformer in maya.

Video shows turning the deformer on
Changing the upper and lower bounds of the deform
Radius change
Center control offset and rotation

It still has some issues and at the moment only operates in the cube's local y axis. I also started a taper and a twist deformer. I found the math in a book and the original paper is here: https://www.cs.drexel.edu/~david/Classe ... 1-barr.pdf
The book math and explanation was simpler than the paper sited above.
Attachments
Bend Cube Scene3.RsScn
(1.46 MiB) Downloaded 16 times
Clinton Reese

http://clintons3d.com

User avatar
Emmanuel
Master Chief Petty Officer
Posts: 557
Joined: 14 Jun 2009, 06:47

Re: Deformer tests

Post by Emmanuel » 06 Oct 2019, 06:44

Very promizing !

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Re: Deformer tests

Post by clintonman » 07 Oct 2019, 15:56

twistDeform.jpg
Twist deform

Works in the z-axis
active and Angle are the controls, Ymax and Ymin are really min and max Z
Center only responds to offsets in the X and Y directions
K input is not used
Attachments
Twist Cube Scene.RsScn
(1.43 MiB) Downloaded 16 times
Clinton Reese

http://clintons3d.com

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Re: Deformer tests

Post by clintonman » 07 Oct 2019, 16:21

taperScaleDeform.jpg
Taper scale deform

Works in the z-axis
active and DeformScale are the controls, Ymax and Ymin are really min and max Z
Center only responds to offsets in the X and Y directions
Could be more complex by adding a scale profile curve. Not likely to pursue it though, simple linear scaling is good enough.
Attachments
Taper Cube Scene.RsScn
(1.44 MiB) Downloaded 14 times
Clinton Reese

http://clintons3d.com

User avatar
Steinie
Captain
Posts: 2803
Joined: 21 May 2009, 17:38
Type the number ten into the box: 10
Contact:

Re: Deformer tests

Post by Steinie » 07 Oct 2019, 17:05

I need to play with these!
In the past I used the Model side bend tool and having these three are a blessing!
There used to be a tool that had all three with a UI having dials that came in handy. It also had deform and possibly a fifth deform tool.
I can't remember the name off hand but I am sure it is saved somewhere on my HD. (Model Side of course)

Thanks!!! :bananathumb:

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Re: Deformer tests

Post by clintonman » 07 Oct 2019, 17:33

Sounds interesting. Let me know if you find the tools and if the tools can be animated.
Clinton Reese

http://clintons3d.com

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Re: Deformer tests

Post by clintonman » 07 Oct 2019, 17:39

squashScaleDeform.jpg
Squash deformer
back cube is undeformed original shape, middle is factor of 0.5 and front is factor of 2

deformer preserves the volume of the shape
Works in the z-axis
active and DeformScale are the controls, Ymax and Ymin are really min and max Z - these controls don't seem very useful to me
Center only really responds to offsets in the Z direction

That is the last of the deformers I had planned. The next step would be to develop some kind of ui for it, make them work in the other 2 axis, a way to combine deformations and rearrange their order. We'll see how far it goes, sounds like it could be a bit of work, maybe too much work.
Attachments
Squash Cube Scene.RsScn
(1.76 MiB) Downloaded 15 times
Clinton Reese

http://clintons3d.com

User avatar
Emmanuel
Master Chief Petty Officer
Posts: 557
Joined: 14 Jun 2009, 06:47

Re: Deformer tests

Post by Emmanuel » 08 Oct 2019, 07:30

clintonman wrote:
07 Oct 2019, 17:33
Sounds interesting. Let me know if you find the tools and if the tools can be animated.
Meshforge perhaps ?
meshforge.jpg

clintonman
Captain
Posts: 3165
Joined: 21 May 2009, 21:08
Type the number ten into the box: 0
Location: California
Contact:

Re: Deformer tests

Post by clintonman » 08 Oct 2019, 15:18

Nice, I'll check that out.
Clinton Reese

http://clintons3d.com

User avatar
trueBlue
Captain
Posts: 2555
Joined: 06 Jul 2009, 22:50
Type the number ten into the box: 10

Re: Deformer tests

Post by trueBlue » 15 Oct 2019, 16:07

Emmanuel wrote:
08 Oct 2019, 07:30
clintonman wrote:
07 Oct 2019, 17:33
Sounds interesting. Let me know if you find the tools and if the tools can be animated.
Meshforge perhaps ?

meshforge.jpg
Tired this and I had to completely uninstall and install tS7.61 on Win10, because this plugin made the trueSpace Alerts, Dialogs, etc... Maximized! It was either the Meshforge plugin or the eyezoom666.tsx that caused this, not sure which one.

Post Reply