wrap deformer creating unexpected bulge

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wrap deformer creating unexpected bulge
by Michael Banjoko on Apr 25, 2011 at 2:07:25 pm

Hi,

I'm working in C4D R12 and i'm currently working on a shield whose profile was brought in as an illustrator shape. Having extruded it, i've applied the wrap deformer to create the sheild shape. However, what i've got is not only the wrapped shield but also a funny looking 'inverted' bulge as shown in the attached screen shot. can anyone help work me thru how to remove the bulge?

2245_shieldwrapproblem.png.zip

Michael

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Re: wrap deformer creating unexpected bulge
by Adam Trachtenberg on Apr 25, 2011 at 7:38:34 pm

It could be that you don't have enough geometry to allow for a smooth deformation. Do you have regular grid turned on the extrude caps tab?

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Re: wrap deformer creating unexpected bulge
by Michael Banjoko on Apr 25, 2011 at 8:08:09 pm

Hi,

No, the 'regular grid' isn't turned on. Strangely, it CAN'T be turned on as the check box isn't responding to my clicks.

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Re: wrap deformer creating unexpected bulge
by Brian Jones on Apr 25, 2011 at 10:22:30 pm

the type has to be Quadrangles or Triangles not N-Gons for Regular Grid to work

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Re: wrap deformer creating unexpected bulge
by Michael Banjoko on Apr 26, 2011 at 6:16:41 am

Thanks Brian,

With regular grids now activated the wrap still had its jaggedness. I however toyed with increasing width of regular grid from default 10cm to 500 and saw some improvement. Increasing the width beyond 500 isn't making any more difference, as the curvature is still jagged. See attached screenshot: 2253_shieldwrapproblemregulargridon.png.zip

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Re: wrap deformer creating unexpected bulge
by Brian Jones on Apr 26, 2011 at 2:27:34 pm

it should get better as the grid size goes down not up. There is something odd about your spline. Try changing the spline Intermediate Points to Subdivided and set Maximum Length to the same value as the Regular Grid size. (make both be 10 or smaller)
It may (but shouldn't) help to pull the Wrap out of the extrude and group it in a Null with the Extrude like this

+Null
-Wrap
+Extrude
-spline

if that doesn't help I'd have to see the scene file.

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Re: wrap deformer creating unexpected bulge
by Adam Trachtenberg on Apr 26, 2011 at 2:34:11 pm

You may have to subdivide your spline manually, or use the add point tool to increase the point count where points are sparse. The regular grid option will subdivide the mesh inside, but it won't increase the border resolution.

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Re: wrap deformer creating unexpected bulge
by Michael Banjoko on Apr 26, 2011 at 4:30:05 pm

Hi,

Ur efforts are really appreciated. Having gone thru Brian's suggestions i'm yet to achieve the desired solution hence i've attached the file itself.

2254_mainlogo.c4d.zip

Could this have anything to do (though i doubt it) with the fact that the shield was extruded from an illustrator file? Might have to model the shield in autocad 2011 and exported to c4d as a .fbx file. I'm however convinced i'm better off working purely in c4d.

thanks guys

Michael

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Re: wrap deformer creating unexpected bulge
by Brian Jones on Apr 26, 2011 at 10:31:19 pm

you definitely have take the wrap out from being the child of the spline. Either by making it the second child of the extrude (not the best) or grouping the extrude and the wrap in a null. Also it helps to put the spline, extrude and wrap at the origin (or at least the same spot in space) so you don't have to do too much gymnastics with the extrude settings to get it to look right, that's not the problem with the spline it's the grouping thing, just saying...

2262_2254mainlogo2.c4d.zip

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Re: wrap deformer creating unexpected bulge
by Michael Banjoko on Apr 26, 2011 at 10:45:42 pm

Dear Brian,

I'm ever so grateful. Your points are very well noted. Can't blv what you've done came from the same illustrator spline i made.

Cheers

Michael

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